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Graton Warnings, Watches and Advisories

Winter Weather Advisory

Winter Weather Advisory issued February 26 at 10:41PM PST until February 27 at 4:00AM PST by NWS Hanford CA

* ADVISORY WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of up to 8 inches. Winds gusting as high as 50 mph. * WATCH WHAT...For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 2 to 6 feet possible. Winds could gust as high as 55 mph. * WHERE...Sierra Nevada. * WHEN...For the Winter Weather Advisory, until 4 AM PST Tuesday. For the Winter Storm Watch, from Thursday morning through Sunday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring near whiteout conditions. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

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Area
Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP

Winter Storm Watch

Winter Storm Watch issued February 26 at 10:41PM PST until March 3 at 4:00PM PST by NWS Hanford CA

* ADVISORY WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of up to 8 inches. Winds gusting as high as 50 mph. * WATCH WHAT...For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 2 to 6 feet possible. Winds could gust as high as 55 mph. * WHERE...Sierra Nevada. * WHEN...For the Winter Weather Advisory, until 4 AM PST Tuesday. For the Winter Storm Watch, from Thursday morning through Sunday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring near whiteout conditions. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

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Area
Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP

Winter Storm Watch

Winter Storm Watch issued February 26 at 10:41PM PST until March 3 at 4:00PM PST by NWS Hanford CA

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 feet possible. Winds could gust as high as 40 mph. * WHERE...South End of the Upper Sierra County. * WHEN...From Thursday morning through Sunday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.

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Area
South End of the Upper Sierra

Winter Storm Watch

Winter Storm Watch issued February 26 at 10:41PM PST until March 3 at 10:00PM PST by NWS Hanford CA

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 2 feet possible above 2500 Feet. * WHERE...Mariposa-Madera Lower Sierra, Fresno-Tulare Lower Sierra, South End of the Lower Sierra, San Joaquin River Canyon and Piute Walker Basin Counties. * WHEN...From late Friday night through Sunday evening. * IMPACTS...Travel could be very difficult to impossible.

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Area
Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite Valley; Piute Walker Basin

Winter Storm Watch

Winter Storm Watch issued February 26 at 10:41PM PST until March 3 at 10:00PM PST by NWS Hanford CA

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 2 feet possible above 2500 Feet. * WHERE...Mariposa-Madera Lower Sierra, Fresno-Tulare Lower Sierra, South End of the Lower Sierra, San Joaquin River Canyon and Piute Walker Basin Counties. * WHEN...From late Thursday night through Sunday evening. * IMPACTS...Travel could be very difficult to impossible.

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Area
San Joaquin River Canyon

Wind Advisory

Wind Advisory issued February 26 at 9:33PM PST until February 27 at 12:00PM PST by NWS San Diego CA

* WHAT...West winds 20 to 30 mph with gusts to 55 mph expected. * WHERE...San Bernardino, Riverside, and San Diego County Mountains, Apple and Lucerne Valleys, San Diego County Deserts and San Gorgonio Pass Near Banning. * WHEN...Through noon Tuesday. * IMPACTS...Hazardous driving conditions at times, including mountain passes along Interstates 8 and 10.

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Area
San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; San Diego County Deserts; San Gorgonio Pass Near Banning

Frost Advisory

Frost Advisory issued February 26 at 8:59PM PST until February 27 at 9:00AM PST by NWS San Francisco CA

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Sonoma Coastal Range, North Bay Interior Mountains and North Bay Interior Valleys. * WHEN...From 2 AM to 9 AM PST Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...These temperatures will be hazardous to sensitive populations such as unhoused individuals.

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Area
Sonoma Coastal Range; North Bay Interior Mountains; North Bay Interior Valleys

Wind Advisory

Wind Advisory issued February 26 at 7:46PM PST until February 27 at 10:00AM PST by NWS Hanford CA

* WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Indian Wells Valley, Mojave Desert, Mojave Desert Slopes, and South End of the Upper Sierra. * WHEN...Until 10 AM PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

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Area
South End of the Upper Sierra; Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

Wind Advisory

Wind Advisory issued February 26 at 3:46PM PST until February 27 at 12:00PM PST by NWS Las Vegas NV

* WHAT...Southwest winds 25 to 35 mph with gusts 40 to 50 mph expected. * WHERE...In Arizona, Northwest Plateau. In California, Eastern Mojave Desert and Western Mojave Desert. In Nevada, Southern Clark County. * WHEN...Until noon PST /1 PM MST/ Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Visibility could be reduced at times due to blowing dust.

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Area
Northwest Plateau; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Southern Clark County

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:29PM PST until March 3 at 10:00AM PST by NWS Sacramento CA

* WHAT...Extremely heavy snow and strong winds possible, bringing whiteout conditions at times. Total snow accumulations of 5 to 12 feet possible above 5000 feet. Accumulations 1 to 4 feet above 3000 feet with lighter accumulations down to 2000 feet. Winds could gust as high as 60 mph. * WHERE...West Slope Northern Sierra Nevada. Including Interstate 80 and US Highway 50. * WHEN...From early Thursday through Sunday morning. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage as well as power outages. * ADDITIONAL DETAILS...Snow levels initially around 5000 to 6000 feet, dropping to 2000 feet by the weekend. Heaviest snow expected Friday.

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Area
West Slope Northern Sierra Nevada

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:29PM PST until March 3 at 10:00AM PST by NWS Sacramento CA

* WHAT...Extremely heavy snow and strong winds possible, bringing whiteout conditions at time. Total snow accumulations of 3 to 6 feet possible above 5000 feet. Accumulations 1 to 2 feet above 3000 feet with lighter accumulations down to 2000 feet. Winds could gust as high as 60 mph. * WHERE...Northeast Foothills, Motherlode, and Western Plumas County/Lassen Park. * WHEN...From early Thursday through Sunday morning. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage as well as power outages. * ADDITIONAL DETAILS...Snow levels initially around 5000 to 6000 feet, dropping to 2000 feet by the weekend. Heaviest snow expected Friday.

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Area
Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:29PM PST until March 3 at 10:00AM PST by NWS Sacramento CA

* WHAT...Heavy snow possible. Total snow accumulations of up to 4 feet possible. Winds could gust as high as 55 mph. * WHERE...Shasta County mountains including Interstate 5, Burney Basin, and northern Coastal Range. * WHEN...From late Wednesday night through Sunday morning. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage as well as power outages. * ADDITIONAL DETAILS...Snow levels initially around 5000 feet, dropping to 2000 feet by the weekend. Heaviest snow expected Friday.

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Area
Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Mountains Southwestern Shasta County to Western Colusa County

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:14PM PST until February 29 at 10:00PM PST by NWS Medford OR

* WHAT...Heavy snow and strong winds possible. Total snow accumulations of up to 6 inches possible. Winds could gust as high as 65 mph. * WHERE...In California, Modoc and northeast Siskiyou counties. In Oregon, Klamath and Lake counties. This includes highways 97 and 232 north of Chiloquin, highway 140 near Bly and over the Warners, highway 31 between Paisley and Silver Lake, and highway 299 over Cedar Pass. * WHEN...From Wednesday afternoon through Thursday evening. * IMPACTS...Plan on slippery road conditions. Blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:14PM PST until February 29 at 10:00PM PST by NWS Medford OR

* WHAT...Heavy snow and gusty possible. Total snow accumulations of 5 to 12 inches possible. Winds could gust as high as 55 mph. * WHERE...The Cascades of central and southeast Siskiyou County, including Tennant, Medicine Lake, and portions of highway 97. * WHEN...From Wednesday afternoon through Thursday evening. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
North Central and Southeast Siskiyou County

Winter Storm Watch

Winter Storm Watch issued February 26 at 2:14PM PST until February 29 at 10:00PM PST by NWS Medford OR

* WHAT...Heavy snow possible above 3000 feet. Total snow accumulations of 5 to 10 inches possible, with 1 to 2 feet possible Winds could gust as high as 50 mph. * WHERE...Western and central Siskiyou County above 3000 feet, including McCloud, Mount Shasta City, Weed, Callahan, and portions of Interstate 5 and highway 97, highway 98 at Snowman Summit and Dead Horse Summit, Etna Summit, and Scott Mountain Summit. * WHEN...From Wednesday afternoon through Thursday evening. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
Western Siskiyou County; Central Siskiyou County; South Central Siskiyou County

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:48PM PST until March 3 at 4:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely. Snow accumulations of 1 to 3 feet for Plumas, Sierra and western Lassen Counties, up to 12 inches along Highway 395 in Lassen County. Localized amounts of 4 to 8 feet near Lassen Park, Yuba Pass, and Lake Davis. Winds gusting as high as 70 mph. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From late Wednesday night through late Saturday night. * IMPACTS...Travel could be impossible due to blizzard conditions. Very strong winds could cause extensive damage to trees and power lines.

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Area
Lassen-Eastern Plumas-Eastern Sierra Counties

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:48PM PST until March 3 at 10:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely. Snow accumulations of 1 to 3 feet for communities along Highway 395 with 3 to 6 feet along the Sierra Crest. Winds gusting as high as 70 mph in the lower elevations and above 100 mph over Sierra ridges. * WHERE...Mono County. * WHEN...From late Wednesday night through Sunday morning. * IMPACTS...Travel could be impossible due to blizzard conditions. Very strong winds could cause extensive damage to trees and power lines.

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Area
Mono

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:48PM PST until March 3 at 10:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely. Snow accumulations between 2 and 4 feet for Lake Tahoe communities, with 4 to 8 feet above 7000 feet. Winds gusting to 60 mph in lower elevations and above 100 mph over Sierra ridges. * WHERE...Greater Lake Tahoe Area. * WHEN...From late Wednesday night through Sunday morning. * IMPACTS...Travel could be impossible due to blizzard conditions. Very strong winds could cause extensive damage to trees and power lines.

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Area
Greater Lake Tahoe Area; Greater Lake Tahoe Area

High Wind Watch

High Wind Watch issued February 26 at 1:26PM PST until February 29 at 1:00PM PST by NWS Eureka CA

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph possible on high ridges. * WHERE...Humboldt Interior, and Southwestern Humboldt. * WHEN...From late Wednesday night through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. Wind gusts will be particularly strong along windward ridges and exposed coastal headlands.

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Area
Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior

High Wind Watch

High Wind Watch issued February 26 at 1:26PM PST until February 29 at 4:00PM PST by NWS Eureka CA

* WHAT...Southwest winds 35 to 45 mph with gusts up to 75 mph possible on high ridges. Gusts up to 60 mph possible along the coast. * WHERE...Del Norte County. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. Wind gusts will be particularly strong along windward ridges and exposed coastal headlands.

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Area
Coastal Del Norte; Del Norte Interior

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:24PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong snow storm will impact the area beginning early Thursday morning. Snow levels will start above 3000 feet but will gradually drop into the weekend. Snow levels will most likely drop below 1000 feet throughout the area by Saturday morning. Very heavy snow should be expected on highway passes especially in Humboldt, Del Norte, and Trinity Counties. * WHAT...Heavy snow possible for elevations above 2500 feet. Total snow accumulations between 3 and 8 inches possible. Winds could gust as high as 35 mph. * WHERE...Northeastern Mendocino Interior and Northern Lake. * WHEN...From Thursday afternoon through Friday morning. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Snow will continue into Saturday with snow levels falling to lower elevations.

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Area
Northeastern Mendocino Interior; Northern Lake County

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:24PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong snow storm will impact the area beginning early Thursday morning. Snow levels will start above 3000 feet but will gradually drop into the weekend. Snow levels will most likely drop below 1000 feet throughout the area by Saturday morning. Very heavy snow should be expected on highway passes especially in Humboldt, Del Norte, and Trinity Counties. * WHAT...Heavy snow possible for elevations above 2000 feet. Total snow accumulations between 3 and 12 inches possible. Winds could gust as high as 55 mph. * WHERE...Humboldt Interior. * WHEN...From Thursday morning through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. Strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snow will continue into Saturday with snow levels falling to lower elevations.

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Area
Northern Humboldt Interior; Southern Humboldt Interior

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:24PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong snow storm will impact the area beginning early Thursday morning. Snow levels will start above 3000 feet but will gradually drop into the weekend. Snow levels will most likely drop below 1000 feet throughout the area by Saturday morning. Very heavy snow should be expected on highway passes especially in Humboldt, Del Norte, and Trinity Counties. * WHAT...Heavy snow possible for elevations above 1500 feet. Total snow accumulations between 6 and 23 inches possible. Winds could gust as high as 70 mph on high peaks. * WHERE...Del Norte Interior. * WHEN...From late Wednesday night through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. Very strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snow will continue into Saturday with snow levels falling to lower elevations.

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Area
Del Norte Interior

Winter Storm Watch

Winter Storm Watch issued February 26 at 1:24PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong snow storm will impact the area beginning early Thursday morning. Snow levels will start above 3000 feet but will gradually drop into the weekend. Snow levels will most likely drop below 1000 feet throughout the area by Saturday morning. Very heavy snow should be expected on highway passes especially in Humboldt, Del Norte, and Trinity Counties. * WHAT...Heavy snow possible for elevations above 2000 feet. Total snow accumulations between 4 and 13 inches possible. Winds could gust as high as 60 mph. * WHERE...Trinity County. * WHEN...From Wednesday evening through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. Strong winds could cause extensive damage to trees and power lines. * ADDITIONAL DETAILS...Snow will continue into Saturday with snow levels falling to lower elevations.

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Area
Northern Trinity; Southern Trinity

Wind Advisory

Wind Advisory issued February 26 at 1:22PM PST until February 27 at 4:00AM PST by NWS Reno NV

* WHAT...West winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

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Area
Lassen-Eastern Plumas-Eastern Sierra Counties

Lake Wind Advisory

Lake Wind Advisory issued February 26 at 1:22PM PST until February 27 at 4:00AM PST by NWS Reno NV

* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph and waves 2 to 4 feet for Lake Tahoe. * WHERE...Greater Lake Tahoe Area. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve.

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Area
Greater Lake Tahoe Area; Greater Lake Tahoe Area

Wind Advisory

Wind Advisory issued February 26 at 1:22PM PST until February 27 at 4:00AM PST by NWS Reno NV

* WHAT...For the Wind Advisory, west to northwest winds 20 to 35 mph with gusts up to 60 mph. For the High Wind Watch, southwest winds 30 to 45 mph with gusts up to 75 mph. * WHERE...In California, Surprise Valley California. In Nevada, Northern Washoe County. * WHEN...For the Wind Advisory, until 4 AM PST Tuesday. For the High Wind Watch, from late Wednesday night through Thursday evening. * IMPACTS...Winds through this evening will impact travel and may down tree limbs. Stronger winds Thursday could down trees and power lines leading to power outages and difficult travel conditions.

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Area
Surprise Valley California; Northern Washoe County

High Wind Watch

High Wind Watch issued February 26 at 1:22PM PST until February 29 at 10:00PM PST by NWS Reno NV

* WHAT...For the Wind Advisory, west to northwest winds 20 to 35 mph with gusts up to 60 mph. For the High Wind Watch, southwest winds 30 to 45 mph with gusts up to 75 mph. * WHERE...In California, Surprise Valley California. In Nevada, Northern Washoe County. * WHEN...For the Wind Advisory, until 4 AM PST Tuesday. For the High Wind Watch, from late Wednesday night through Thursday evening. * IMPACTS...Winds through this evening will impact travel and may down tree limbs. Stronger winds Thursday could down trees and power lines leading to power outages and difficult travel conditions.

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Area
Surprise Valley California; Northern Washoe County

Wind Advisory

Wind Advisory issued February 26 at 12:45PM MST until February 27 at 11:00AM MST by NWS Phoenix AZ

* WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 11 PM this evening to 11 AM PST Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible.

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Area
Imperial County Southwest
Disclaimer

Currently

Fair 48°F
29.99in
Barometer
80%
Humidity
West 4.6mph
Wind
Fair

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