Mountain View, CA Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Mountain View.

Use the Radar Maps link provided to understand the trajectory of a storm.

Coastal Flood Advisory issued December 13 at 4:46AM PST until December 13 at 11:00AM PST by NWS Eureka CA

* WHAT...High astronomical tides will cause minor flooding in low lying areas around Crescent City. Up to one quarter foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 8.8 and 9.1 feet MLLW at the Crescent City tide gauge is predicted. * WHERE...Coastal Del Norte County. * WHEN...From 7 AM to 11 AM PST Friday. High tide is at 8:58 AM at the Crescent City tide gauge. Saltwater inundation will be possible 1 to 2 hours before and after high tide. * IMPACTS...Flooding of low lying areas are possible, including along Pebble Beach Rd and along Highway 101 by South Beach south of Crescent City.

Coastal Flood Warning issued December 13 at 4:46AM PST until December 13 at 11:00AM PST by NWS Eureka CA

* WHAT...High astronomical tides and large surf will cause moderate flooding in low lying areas along the Redwood Coast. Up to one foot of saltwater inundation above ground level is possible in low lying areas near shorelines and tidal waterways. Between 9.2 and 9.5 feet MLLW at the North Spit tide gauge is predicted. * WHERE...Northern Humboldt Coast County. * WHEN...From 7 AM to 11 AM PST Friday. High tide is at 9:11 AM at the Humboldt Bay North Spit tide gauge. Saltwater inundation will be possible 1 to 2 hours before and after high tide. * IMPACTS...Flooding of low lying areas around Humboldt Bay including parks and roads with only isolated closures expected. Flooding will likely impact Jackson Ranch Road in the Arcata Bottoms and several roads in King Salmon.

Coastal Flood Advisory issued December 13 at 4:46AM PST until December 13 at 11:00AM PST by NWS Eureka CA

* WHAT...High astronomical tides will cause minor flooding along the Mendocino Coast. Up to one quarter foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 7.6 and 8.0 feet MLLW at the Arena Cove tide gauge is predicted. * WHERE...Mendocino Coast County. * WHEN...From 7 AM to 11 AM PST Friday. High tide is at 8:18 AM at the Arena Cove tide gauge. Saltwater inundation will be possible 1 to 2 hours before and after high tide. * IMPACTS...Flooding along low lying areas along Highway 1 are possible, along with several beaches and parking lots. Minor flooding is possible around low lying areas of Noyo Harbor and Arena Cove.

Winter Weather Advisory issued December 13 at 4:11AM PST until December 13 at 8:00PM PST by NWS Eureka CA

* WHAT...Wet snow expected for locations above 3500 feet. Total snow accumulations between 2 and 6 inches. Winds gusting as high as 45 mph. * WHERE...Southern Trinity including the summits on highway 36 and highway 3. * WHEN...Until 8 PM PST this evening. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels are expected to start out around 3500 feet and are expected to rise above 4500 feet by the evening.

Winter Storm Warning issued December 13 at 4:11AM PST until December 14 at 4:00PM PST by NWS Eureka CA

* WHAT...Heavy snow above 3000 feet. Total accumulation of 10 to 23 inches around Scott Mountain Pass. Total accumulation of up to 1 foot down to 3000 feet. Wind gusting as high 45 mph. * WHERE...Northern Trinity county above 3000 feet. * WHEN...From 8 AM this morning to 4 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. * ADDITIONAL DETAILS...This is expected to impact numerous locations along highway 3 as well Buckhorn Summit on highway 299.

Wind Advisory issued December 13 at 3:52AM PST until December 13 at 6:00AM PST by NWS Phoenix AZ

* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 6 AM PST early this morning. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

High Surf Advisory issued December 13 at 3:39AM PST until December 14 at 7:00PM PST by NWS San Francisco CA

* WHAT...Large breaking waves of 18 to 22 feet expected. * WHERE...Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast and Southern Monterey Bay and Big Sur Coast Counties. * WHEN...From 10 PM this evening to 7 PM PST Saturday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion.

High Surf Advisory issued December 13 at 3:39AM PST until December 14 at 7:00PM PST by NWS San Francisco CA

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected due to King Tides. For the High Surf Advisory, large breaking waves of 18 to 22 feet expected. * WHERE...San Francisco County. * WHEN...For the Coastal Flood Advisory, until 1 PM PST Monday. For the High Surf Advisory, from 10 PM this evening to 7 PM PST Saturday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Dangerous swimming and surfing conditions and localized beach erosion.

Coastal Flood Advisory issued December 13 at 3:39AM PST until December 16 at 1:00PM PST by NWS San Francisco CA

* WHAT...Minor coastal flooding. * WHERE...Low-lying regions of the North Bay and areas along the San Francisco Bay shoreline. * WHEN...Until 1 PM PST Monday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

Coastal Flood Advisory issued December 13 at 3:39AM PST until December 16 at 1:00PM PST by NWS San Francisco CA

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected due to King Tides. For the High Surf Advisory, large breaking waves of 18 to 22 feet expected. * WHERE...San Francisco County. * WHEN...For the Coastal Flood Advisory, until 1 PM PST Monday. For the High Surf Advisory, from 10 PM this evening to 7 PM PST Saturday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Dangerous swimming and surfing conditions and localized beach erosion.

Wind Advisory issued December 13 at 3:22AM PST until December 14 at 7:00AM PST by NWS Medford OR

* WHAT...South winds 35 to 45 mph with gusts up to 50 mph expected. Gusts up to 65 mph are expected across the Warner Mountains and Winter Ridge. * WHERE...Portions of Lake County, eastern Klamath County, and Modoc County. This includes portions of highway 140 east of Lakeview, highways 395, 31, and 299 east of Alturas and the cities of Lakeview and Valley Falls. * WHEN...From 4 PM this afternoon to 7 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

High Wind Warning issued December 13 at 3:22AM PST until December 14 at 7:00AM PST by NWS Medford OR

* WHAT...South winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Portions of the Shasta Valley, including Interstate 5 from Weed to Grenada. This includes the cities of Yreka, Grenada, and Weed. * WHEN...From 7 AM this morning to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

Winter Weather Advisory issued December 13 at 3:06AM PST until December 14 at 4:00PM PST by NWS Medford OR

* WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 to 2 feet, with local amounts up to 34 inches. Winds gusting as high as 65 mph. For the Winter Weather Advisory, snow expected. Total snow accumulations between 5 and 12 inches. Winds gusting as high as 60 mph. * WHERE...Portions of Siskiyou County, including the high terrain of western and eastern Siskiyou County and Sawyers Bar road west of Etna, portions of highway 97 northeast of Weed, and the City of Tennant. * WHEN...From 1 PM this afternoon to 4 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Friday evening commute. Very strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of one inch per hour are likely Friday night into Saturday, with a 20-30% chance of 2 inch per hour rates in the warning area.

Winter Storm Warning issued December 13 at 3:06AM PST until December 14 at 4:00PM PST by NWS Medford OR

* WHAT...Heavy snow expected. Total snow accumulations between 1 to 2 feet, with local amounts up to 3 feet possible near the Mount Shasta Ski area. Winds could gust as high as 60 mph. * WHERE...South central Siskiyou County. This includes Dunsmuir, McCloud, Mount Shasta City as well as Interstate 5 and Highway 89. * WHEN...From 1 PM this afternoon to 4 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Friday evening commute. Strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of one inch per hour are likely Friday night into Saturday, with a 20-30% chance of 2 inch per hour rates.

Winter Storm Warning issued December 13 at 3:06AM PST until December 14 at 4:00PM PST by NWS Medford OR

* WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 to 2 feet, with local amounts up to 34 inches. Winds gusting as high as 65 mph. For the Winter Weather Advisory, snow expected. Total snow accumulations between 5 and 12 inches. Winds gusting as high as 60 mph. * WHERE...Portions of Siskiyou County, including the high terrain of western and eastern Siskiyou County and Sawyers Bar road west of Etna, portions of highway 97 northeast of Weed, and the City of Tennant. * WHEN...From 1 PM this afternoon to 4 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Friday evening commute. Very strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snowfall rates of one inch per hour are likely Friday night into Saturday, with a 20-30% chance of 2 inch per hour rates in the warning area.

Wind Advisory issued December 13 at 2:55AM PST until December 13 at 4:00PM PST by NWS Eureka CA

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Del Norte County, and Humboldt County. * WHEN...From 8 AM this morning to 4 PM PST this afternoon. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands.

Wind Advisory issued December 13 at 2:55AM PST until December 13 at 10:00PM PST by NWS Eureka CA

* WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Western Mendocino. * WHEN...From 10 AM this morning to 10 PM PST this evening. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands.

Winter Storm Warning issued December 13 at 2:47AM PST until December 14 at 10:00PM PST by NWS Reno NV

* WHAT...Heavy snow. Snow accumulations between 3 to 8 inches below 5500 feet west of Highway 395 with 12 to 20 inches above 5500 feet. Localized amounts up to 3 feet on the highest peaks. Wind gusts as high as 45 mph. Ridge wind gusts as high as 75 mph. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From 7 AM this morning to 10 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the commutes Friday and Saturday. Gusty winds could bring down tree branches.

Winter Storm Warning issued December 13 at 2:47AM PST until December 14 at 10:00PM PST by NWS Reno NV

* WHAT...Heavy snow. Snow accumulations of 3 to 8 inches below 6500 ft with 8 to 20 inches above 6500 feet. Snow accumulations of 6 to 14 inches west of Highway 89 with up to 30 inches along the Sierra crest. Ridge winds gusting up to 120 mph. Southwest winds 20 to 30 mph with gusts up to 50 mph and wave heights of 2 to 5 feet on Lake Tahoe. * WHERE...Greater Lake Tahoe Area. * WHEN...From 1 PM this afternoon to 10 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday and Saturday commutes. Very strong winds could cause extensive damage to trees and power lines. Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve.

Winter Storm Warning issued December 13 at 2:47AM PST until December 14 at 10:00PM PST by NWS Reno NV

* WHAT...Heavy snow. Snow accumulations between 8 to 20 inches west of Highway 395. Below 7000 feet, snow accumulations of 2 to 6 inches. Expect localized areas of up to 2 feet along the highest peaks. Wind gusts up to 65 mph with ridge gusts as high as 100 mph. * WHERE...Mono County. * WHEN...From 1 AM to 10 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday and Saturday commutes. Very strong winds could cause extensive damage to trees and power lines.

Winter Storm Warning issued December 13 at 2:23AM PST until December 14 at 10:00PM PST by NWS Sacramento CA

* WHAT...Heavy snow expected. For the Coastal Range/Shasta County mountains above 3500 feet, 8 to 24 inches expected, locally higher over peaks. For the Southern Cascades/Sierra above 5000 feet, 1 to 3 feet expected, locally higher over the peaks. Winds gusting as high as 50 MPH. * WHERE...Burney Basin / Eastern Shasta County, Mountains Southwestern Shasta County to Western Colusa County, Shasta Lake Area / Northern Shasta County, West Slope Northern Sierra Nevada, and Western Plumas County/Lassen Park Counties. * WHEN...Until 10 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...The next storm will bring periods of moderate to heavy snow Friday into Saturday night, heaviest during the day Saturday.

Wind Advisory issued December 13 at 2:21AM PST until December 14 at 12:00PM PST by NWS Sacramento CA

* WHAT...Southeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Northern San Joaquin Valley. * WHEN...From 10 PM this evening to noon PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued December 13 at 2:21AM PST until December 14 at 12:00PM PST by NWS Sacramento CA

* WHAT...Southeast winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Carquinez Strait and Delta, Central Sacramento Valley, Northern Sacramento Valley, and Southern Sacramento Valley. * WHEN...From 10 PM this evening to noon PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winter Storm Warning issued December 13 at 1:57AM PST until December 14 at 10:00PM PST by NWS Hanford CA

* WHAT...Heavy snow expected. Total snow accumulations 12 to 18 inches. Winds gusting as high as 50 mph. * WHERE...Upper San Joaquin River, Yosemite NP outside of the valley, Grant Grove Area, Kaiser to Rodgers Ridge, Kings Canyon NP, and Sequoia NP. * WHEN...From 10 PM this evening to 10 PM PST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For the expiring Winter Weather Advisory, there are still some lingering snow showers. Please continue to take caution while driving and follow all road closures and chain controls.

Beach Hazards Statement issued December 13 at 1:39AM PST until December 15 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Dangerous rip currents and breaking waves due to elevated surf of 3 to 6 feet expected. Very minor tidal overflow and coastal flooding. * WHERE...Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Malibu Coast and Los Angeles County Beaches. * WHEN...Through Sunday afternoon. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats nearshore. In addition, astronomical tides will be running high, around 7 feet. And with the elevated surf, very minor tidal overflow and coastal flooding will be possible for west and northwest- facing beaches within a couple hours of morning high tides, which will progress from around 7AM PST Friday to between 8AM and 9AM PST by Sunday.

High Surf Advisory issued December 13 at 1:39AM PST until December 15 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Large breaking waves of 5 to 8 feet with dangerous rip currents. Very minor tidal overflow and coastal flooding. * WHERE...Ventura County Beaches. * WHEN...Until 4 PM PST Sunday. * IMPACTS...There is an increased risk for ocean drowning. Rip currents can pull swimmers and surfers out to sea. Large breaking waves can cause injury, wash people off beaches and rocks, and capsize small boats near shore. In addition, astronomical tides will be running high, around 7 feet. And with the high surf, very minor tidal overflow and coastal flooding will be possible for west and northwest-facing beaches within a couple hours of morning high tides, which will progress from around 7AM PST Friday to between 8AM and 9AM PST by Sunday.

High Surf Advisory issued December 13 at 1:39AM PST until December 15 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Large breaking waves of 10 to 15 feet with dangerous rip currents. Very minor tidal overflow and coastal flooding. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...Until 4 PM PST Sunday. * IMPACTS...There is an increased risk for ocean drowning. Rip currents can pull swimmers and surfers out to sea. Large breaking waves can cause injury, wash people off beaches and rocks, and capsize small boats near shore. In addition, astronomical tides will be running high, around 7 feet. And with the high surf, very minor tidal overflow and coastal flooding will be possible for west and northwest-facing beaches within a couple hours of morning high tides, which will progress from around 7AM PST Friday to between 8AM and 9AM PST by Sunday.

Flood Watch issued December 13 at 1:22AM PST until December 14 at 10:00PM PST by NWS Eureka CA

...The Flood Watch continues for the following rivers in California... Russian River near Hopland affecting Southeastern Mendocino Interior zone. Navarro River at Navarro affecting Southwestern Mendocino Interior zone. For the Russian River...including Hopland...flooding is possible. For the Navarro River...including Navarro...flooding is possible. * WHAT...Flooding is possible. * WHERE...Russian River near Hopland. * WHEN...From late tonight to Saturday evening. * IMPACTS...At 15.0 feet, Flooding of Highway 175 is expected at the approaches to the Russian River bridge. Expect flooding of cropland on the right bank of river. At 17.0 feet, Significant flooding of Highway 175 at the approaches to the Russian River bridge. Minor flooding of Highway 222 near Ukiah, and in crop land along the left and right banks of the Russian River near Hopland. * ADDITIONAL DETAILS... - At 12:45 AM PST Friday the stage was 6.7 feet. - Forecast...Flood stage may be reached late tonight. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood

Flood Watch issued December 13 at 1:22AM PST until December 14 at 10:00PM PST by NWS Eureka CA

...The Flood Watch continues for the following rivers in California... Russian River near Hopland affecting Southeastern Mendocino Interior zone. Navarro River at Navarro affecting Southwestern Mendocino Interior zone. For the Russian River...including Hopland...flooding is possible. For the Navarro River...including Navarro...flooding is possible. * WHAT...Flooding is possible. * WHERE...Navarro River at Navarro. * WHEN...From Saturday afternoon to Saturday evening. * IMPACTS...At 23.0 feet, Flooding of Highway 128 approximately 5 miles east of Highway 1 is certain and the road will be closed. Motorists should use alternate routes. * ADDITIONAL DETAILS... - At 12:15 AM PST Friday the stage was 6.7 feet. - Forecast...Flood stage may be reached early tomorrow afternoon. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood

Wind Advisory issued December 13 at 1:07AM PST until December 14 at 9:00PM PST by NWS Las Vegas NV

* WHAT...Downslope west winds gusting 40 to 55 mph expected. * WHERE...Owens Valley near the Sierra foothills. * WHEN...From 9 AM to 9 PM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Sections of Highway 395 near the Sierra foothills will be susceptible to strong crosswinds.

Wind Advisory issued December 13 at 12:59AM PST until December 13 at 10:00PM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 40 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Northern Monterey Bay, The Santa Cruz Mountains, San Francisco, and San Francisco Peninsula Coast. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

Wind Advisory issued December 13 at 12:59AM PST until December 13 at 10:00PM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 10 to 20 mph with gusts up to 40 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...East Bay Hills. * WHEN...For the Wind Advisory, from 4 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued December 13 at 12:59AM PST until December 13 at 10:00PM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 45 mph expected. For the High Wind Warning, south winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...The Marin Hills, and Western Sonoma County Hills. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

Wind Advisory issued December 13 at 12:59AM PST until December 13 at 10:00PM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 45 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Coastal North Bay Including Point Reyes National Seashore. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

Wind Advisory issued December 13 at 12:59AM PST until December 14 at 4:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, southeast winds 5 to 15 mph with gusts up to 35 mph expected. For the High Wind Warning, southeast winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Southern Monterey Bay and the Big Sur Coast. * WHEN...For the Wind Advisory, from 10 PM this evening to 4 AM PST Saturday. For the High Wind Warning, from 4 AM to 10 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

High Wind Warning issued December 13 at 12:59AM PST until December 14 at 7:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 40 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Northern Monterey Bay, The Santa Cruz Mountains, San Francisco, and San Francisco Peninsula Coast. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

High Wind Warning issued December 13 at 12:59AM PST until December 14 at 7:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 45 mph expected. For the High Wind Warning, south winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...The Marin Hills, and Western Sonoma County Hills. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

Wind Advisory issued December 13 at 12:59AM PST until December 14 at 7:00AM PST by NWS San Francisco CA

* WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...East Bay Interior Valleys, North Bay Interior Mountains, North Bay Interior Valleys, and San Francisco Bay Shoreline. * WHEN...From 4 PM this afternoon to 7 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees.

High Wind Warning issued December 13 at 12:59AM PST until December 14 at 7:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 15 to 25 mph with gusts up to 45 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Coastal North Bay Including Point Reyes National Seashore. * WHEN...For the Wind Advisory, from 1 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds may move loose debris, result in minor damage property, and cause sporadic power outages. Travel could become difficult, especially for high profile vehicles.

High Wind Warning issued December 13 at 12:59AM PST until December 14 at 7:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, south winds 10 to 20 mph with gusts up to 40 mph expected. For the High Wind Warning, south winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...East Bay Hills. * WHEN...For the Wind Advisory, from 4 PM this afternoon to 10 PM PST this evening. For the High Wind Warning, from 10 PM this evening to 7 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

High Wind Warning issued December 13 at 12:59AM PST until December 14 at 10:00AM PST by NWS San Francisco CA

* WHAT...For the Wind Advisory, southeast winds 5 to 15 mph with gusts up to 35 mph expected. For the High Wind Warning, southeast winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Southern Monterey Bay and the Big Sur Coast. * WHEN...For the Wind Advisory, from 10 PM this evening to 4 AM PST Saturday. For the High Wind Warning, from 4 AM to 10 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Damaging winds could down trees, snap power lines, and result in property damage. Widespread power outages are possible. Travel could be extremely difficult and hazardous, especially for high profile vehicles. The combination of wind and moist soils will increase the risk for downed trees. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued December 13 at 12:59AM PST until December 14 at 10:00AM PST by NWS San Francisco CA

* WHAT...Southeast winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...The Santa Clara Valley and Eastern Hills. * WHEN...From 7 PM this evening to 10 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees.

Wind Advisory issued December 13 at 12:59AM PST until December 14 at 10:00AM PST by NWS San Francisco CA

* WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Interior Monterey County and the Santa Lucia Range. * WHEN...From 1 AM to 10 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees.

Wind Advisory issued December 13 at 12:59AM PST until December 14 at 10:00AM PST by NWS San Francisco CA

* WHAT...Southeast winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...The Salinas and Carmel Valleys and Hollister Area, and Most of San Benito County and the Cholame Hills in Southeast Monterey County. * WHEN...From 1 AM to 10 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The combination of wind and moist soils will increase the risk for downed trees.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

The High Wind Watch has been replaced. Please see the latest information from NWS San Francisco CA on this developing situation.

Winter Weather Advisory issued December 13 at 12:57AM PST until December 14 at 10:00PM PST by NWS Las Vegas NV

* WHAT...Snow expected. Total snow accumulations 4 to 6 inches between 7000 and 9000 feet. Up to 12 inches near the Sierra Crest. Winds gusting as high as 60 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From 1 AM to 10 PM PST Saturday. * IMPACTS...Plan on slippery road conditions above 7000 feet. Gusty winds could bring down tree branches.

Flood Watch issued December 13 at 12:44AM PST until December 14 at 3:00PM PST by NWS Eureka CA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest California, including the following area, Northern Humboldt Coast. * WHEN...From this afternoon through Saturday afternoon. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS... - Two to three inches of rain expected from Friday morning through Saturday afternoon. This will combine with saturated soils to produce flooding of small streams and low lying areas. High tides will increase flooding in areas that drain into Humboldt Bay. - http://www.weather.gov/safety/flood

Flood Watch issued December 13 at 12:44AM PST until December 14 at 3:00PM PST by NWS Eureka CA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest California, including Mendocino and Lake Counties. * WHEN...From this afternoon through Saturday afternoon. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Two to five inches of rain expected from Friday morning through Saturday afternoon. This will combine with saturated soils to produce flooding of small streams and low lying areas. - http://www.weather.gov/safety/flood

Flood Watch issued December 13 at 12:44AM PST until December 14 at 3:00PM PST by NWS Eureka CA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest California, including the following areas, Southern Humboldt Interior and Southwestern Humboldt. * WHEN...From this afternoon through Saturday afternoon. * IMPACTS...There will be an increased risk of rock and land slides along roadways. * ADDITIONAL DETAILS... - Three to eight inches of rain expected from Friday morning through Saturday afternoon. This will combine with saturated soils to produce flooding of small streams and low lying areas. - http://www.weather.gov/safety/flood

Flood Watch issued December 12 at 10:20PM PST until December 15 at 4:00PM PST by NWS San Francisco CA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...The North Bay. * WHEN...From Friday afternoon through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Significant rainfall is expected Friday and Saturday as an intense low pressure system comes into the state. Expected rainfall totals are 2-3 inches in the valleys, locally up to 5 inches in the higher elevations. The larger rivers will crest on Sunday, after the heavy rain. - http://www.weather.gov/safety/flood

Beach Hazards Statement issued December 12 at 9:40PM PST until December 15 at 10:00AM PST by NWS San Diego CA

* WHAT...Minor tidal overflow expected. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...Now through Sunday morning. Each morning during the highest tides of the day. * IMPACTS...Low lying locations, including parking lots, could have minor tidal overflow each morning during astronomical high tides of around 6 to 7 feet. This includes Imperial Beach, La Jolla Shores, Del Mar and Cardiff in San Diego County, and Newport Beach, Sunset Beach and Seal Beach in Orange County. * ADDITIONAL DETAILS...Time and height of highest tides each day: Newport Beach - Friday: 6.7 feet at 647 AM. La Jolla - Friday: 6.6 feet at 644 AM. Newport Beach - Saturday: 6.9 feet at 728 AM. La Jolla - Saturday: 6.8 feet at 725 AM. Newport Beach - Sunday: 6.9 feet at 810 AM. La Jolla - Sunday: 6.8 feet at 807 AM.