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Humboldt County, CA Warnings, Watches and Advisories

Blizzard Warning

Blizzard Warning issued February 27 at 7:34PM PST until March 3 at 10:00AM PST by NWS Hanford CA

* WHAT...Dangerous to impossible travel from blizzard conditions Friday into Saturday morning. Snow accumulations 4 to 8 feet above 6000 feet. Total snow 2 to 4 feet from 5000 feet to 6000 feet. Snowfall 1 to 3 feet from 4000 feet to 5000 feet. Total snow accumulations 1 to 2 feet above 2500 feet. Winds may gust as high as 65 mph on exposed ridgetops and along the crest. * WHERE...Yosemite NP outside of the valley, Upper San Joaquin River, Kaiser to Rodgers Ridge and Kings Canyon NP. * WHEN...Winter storm from 4 PM Thursday to 10 AM PST Sunday, with blizzard conditions expected Friday into Saturday. * IMPACTS...Travel will be extremely difficult and dangerous to impossible. Widespread blowing snow can reduce visibility to near zero with whiteout conditions. Strong winds and heavy snow load could cause tree damage and power outages. Wind chills as low as 15 to 20 below zero can be expected.

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

Winter Storm Warning

Winter Storm Warning issued February 27 at 7:34PM PST until March 3 at 10:00AM PST by NWS Hanford CA

* WHAT...Snow accumulations 4 to 6 feet above 6000 feet. Total snow 2 to 4 feet from 5000 feet to 6000 feet. Snowfall 1 to 2 feet from 4000 feet to 5000 feet. Total snow accumulations 1 to 2 feet above 2500 feet. Winds may gust as high as 55 mph on exposed ridgetops and along the crest. * WHERE...Grant Grove Area, Sequoia NP and South End of the Upper Sierra. * WHEN...From 4 AM Friday to 10 AM PST Sunday. * IMPACTS...Travel will be very difficult to impossible, and is not advised. Widespread blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. The cold wind chills as low as 15 to 20 below zero can cause frostbite on exposed skin.

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Area
Grant Grove Area; Sequoia NP; South End of the Upper Sierra

Winter Storm Warning

Winter Storm Warning issued February 27 at 7:34PM PST until March 3 at 10:00AM PST by NWS Hanford CA

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 18 inches. Winds gusting as high as 35 mph. * WHERE...Sierra Nevada Foothills, Yosemite Valley and Piute Walker Basin. * WHEN...From 4 AM Saturday to 10 AM PST Sunday. * IMPACTS...Travel could be very difficult to nearly impossible. Delay travel plans if possible.

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

Winter Storm Watch

Winter Storm Watch issued February 27 at 3:54PM PST until March 3 at 4:00AM PST by NWS Las Vegas NV

* WHAT...Heavy snow possible. Total snow accumulations of 18 to 24 inches possible at Aspendell, with 24 to 36 inches of snow possible above 9000 feet and locally higher amounts near the crest. Winds may gust as high as 40 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From Friday morning through late Saturday night. * IMPACTS...Travel could be very difficult to impossible. * ADDITIONAL DETAILS...Travel may become difficult to impossible on Highway 168 west of Bishop.

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Area
Eastern Sierra Slopes of Inyo County

Wind Advisory

Wind Advisory issued February 27 at 2:41PM PST until February 29 at 10:00AM PST by NWS Eureka CA

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected in exposed areas. * WHERE...Northern Humboldt Coast. * WHEN...From 1 AM to 10 AM PST Thursday. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands. There is an increased risk of tree branches and other debris on roadways.

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Area
Northern Humboldt Coast

High Wind Warning

High Wind Warning issued February 27 at 2:41PM PST until February 29 at 10:00AM PST by NWS Eureka CA

* WHAT...South winds 35 to 45 mph with gusts up to 75 mph expected at high elevations. Gusts up to 60 mph at low elevations along the coast. * WHERE...Del Norte County. * WHEN...From 10 PM Wednesday to 10 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

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Area
Coastal Del Norte; Del Norte Interior

High Wind Warning

High Wind Warning issued February 27 at 2:41PM PST until February 29 at 10:00AM PST by NWS Eureka CA

* WHAT...South winds 35 to 45 mph with gusts up to 75 mph expected at high elevations. * WHERE...Humboldt Interior, and Southwestern Humboldt. * WHEN...From 1 AM to 10 AM PST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

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Area
Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior

Wind Advisory

Wind Advisory issued February 27 at 2:41PM PST until February 29 at 4:00PM PST by NWS Eureka CA

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected at high elevations. * WHERE...Northern Mendocino Interior, and Northern Lake. * WHEN...From 4 AM to 4 PM PST Thursday. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands. There is an increased risk of tree branches and other debris on roadways.

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Area
Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County

Wind Advisory

Wind Advisory issued February 27 at 2:41PM PST until February 29 at 7:00PM PST by NWS Eureka CA

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected at high elevations. Gusts to 45 mph along Clear Lake. * WHERE...Southern Lake. * WHEN...From 10 AM to 7 PM PST Thursday. * IMPACTS...There is an increased risk of tree branches and other debris on roadways. 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
Southern Lake County

Winter Storm Warning

Winter Storm Warning issued February 27 at 2:14PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2000 feet, heavy snow expected. Total snow accumulations between 4 and 16 inches. Winds gusting as high as 65 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 14 and 25 inches possible above 2000 feet. 2 to 6 inches along valley bottoms. Winds could gust as high as 45 mph. * WHERE...Trinity County. * WHEN...For the Winter Storm Warning, from 10 PM Wednesday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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.

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Area
Northern Trinity; Southern Trinity

Winter Storm Warning

Winter Storm Warning issued February 27 at 2:14PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2000 feet, heavy snow expected. Total snow accumulations up to 16 inches. Winds gusting as high as 50 mph. For the Winter Storm Watch for elevations above 500 feet, heavy snow possible. Total snow accumulations of 16 to 28 inches possible at high elevations. Winds could gust as high as 45 mph. * WHERE...Humboldt Interior. * WHEN...For the Winter Storm Warning, from 10 AM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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. Gusty winds could bring down tree branches.

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Area
Northern Humboldt Interior; Southern Humboldt Interior

Winter Storm Warning

Winter Storm Warning issued February 27 at 2:14PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 1500 feet, heavy snow expected. Total snow accumulations between 11 and 26 inches. Winds gusting as high as 80 mph on high ridges. For the Winter Storm Watch for elevations above 500 feet, heavy snow possible. Total snow accumulations between 10 and 26 inches possible at high elevations. Winds could gust as high as 55 mph. * WHERE...Del Norte Interior. * WHEN...For the Winter Storm Warning, from 4 AM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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.

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Area
Del Norte Interior

Winter Storm Warning

Winter Storm Warning issued February 27 at 2:14PM PST until March 1 at 10:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2500 feet, heavy snow expected. Total snow accumulations between 4 and 7 inches. Winds gusting as high as 45 mph. For the Winter Storm Watch for elevations above 1000 feet, heavy snow possible. Total snow accumulations between 8 and 16 inches possible at higher elevations. Winds could gust as high as 45 mph. * WHERE...Northeastern Mendocino Interior and Northern Lake. * WHEN...For the Winter Storm Warning, from 4 PM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. Gusty winds could bring down tree branches. Visibilities may drop below 1/4 mile due to falling and blowing snow.

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Area
Northeastern Mendocino Interior; Northern Lake County

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2000 feet, heavy snow expected. Total snow accumulations between 4 and 16 inches. Winds gusting as high as 65 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 14 and 25 inches possible above 2000 feet. 2 to 6 inches along valley bottoms. Winds could gust as high as 45 mph. * WHERE...Trinity County. * WHEN...For the Winter Storm Warning, from 10 PM Wednesday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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.

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Area
Northern Trinity; Southern Trinity

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 1500 feet, heavy snow expected. Total snow accumulations between 11 and 26 inches. Winds gusting as high as 80 mph on high ridges. For the Winter Storm Watch for elevations above 500 feet, heavy snow possible. Total snow accumulations between 10 and 26 inches possible at high elevations. Winds could gust as high as 55 mph. * WHERE...Del Norte Interior. * WHEN...For the Winter Storm Warning, from 4 AM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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.

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Area
Del Norte Interior

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2000 feet, heavy snow expected. Total snow accumulations up to 16 inches. Winds gusting as high as 50 mph. For the Winter Storm Watch for elevations above 500 feet, heavy snow possible. Total snow accumulations of 16 to 28 inches possible at high elevations. Winds could gust as high as 45 mph. * WHERE...Humboldt Interior. * WHEN...For the Winter Storm Warning, from 10 AM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * 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. Gusty winds could bring down tree branches.

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Area
Northern Humboldt Interior; Southern Humboldt Interior

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...Heavy snow possible for elevations above 1000 feet. Total snow accumulations between 2 and 6 inches possible, more at high elevations. * WHERE...Southeastern Mendocino Interior and Southern Lake. * WHEN...From Friday evening through late Saturday night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult.

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Area
Southeastern Mendocino Interior; Southern Lake County

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...Heavy snow possible for elevations above 1000 feet. Total snow accumulations between 6 and 12 inches possible at highway pass level. Up to 20 inches at higher elevations. Winds could gust as high as 40 mph. * WHERE...Northwestern Mendocino Interior. * WHEN...From Friday morning through late Saturday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes.

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Area
Northwestern Mendocino Interior

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...For the Winter Storm Warning for elevations above 2500 feet, heavy snow expected. Total snow accumulations between 4 and 7 inches. Winds gusting as high as 45 mph. For the Winter Storm Watch for elevations above 1000 feet, heavy snow possible. Total snow accumulations between 8 and 16 inches possible at higher elevations. Winds could gust as high as 45 mph. * WHERE...Northeastern Mendocino Interior and Northern Lake. * WHEN...For the Winter Storm Warning, from 4 PM Thursday to 10 AM PST Friday. For the Winter Storm Watch, from Friday morning through late Saturday night. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. Gusty winds could bring down tree branches. Visibilities may drop below 1/4 mile due to falling and blowing snow.

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Area
Northeastern Mendocino Interior; Northern Lake County

Winter Storm Watch

Winter Storm Watch issued February 27 at 2:14PM PST until March 3 at 4:00AM PST by NWS Eureka CA

...MAJOR WINTER STORM THURSDAY THROUGH SATURDAY... .A strong winter storm will impact NW California late week. The first impacts will arrive early Thursday morning with high wind along the North Coast. Snow levels will begin above 3000 feet but quickly drop below 2000 feet Thursday afternoon. Snow levels will continue to drop as low as 500 to 1000 feet early Saturday morning. Heavy snow should be expected on high highway passes. * WHAT...Heavy snow possible for elevations above 1500 feet. Total snow accumulations between 9 and 22 inches possible. Winds could gust as high as 45 mph. * WHERE...Southwestern Humboldt. * WHEN...From Friday morning through late Saturday night. * 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. Gusty winds could bring down tree branches.

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Area
Southwestern Humboldt

Wind Advisory

Wind Advisory issued February 27 at 2:01PM PST until February 29 at 10:00PM PST by NWS Sacramento CA

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Northern and Central Sacramento Valley, including Interstate 5. * WHEN...From 1 AM to 10 PM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Additional gusty southerly winds expected Friday afternoon.

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Area
Northern Sacramento Valley; Central Sacramento Valley

High Wind Warning

High Wind Warning issued February 27 at 1:05PM PST until February 29 at 1:00PM PST by NWS Medford OR

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...The Shasta Valley in central Siskiyou County, including Weed, Montague, and portions of Interstate 5 and highway 97. * WHEN...From 10 PM Wednesday to 1 PM PST Thursday. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
Central Siskiyou County

High Wind Warning

High Wind Warning issued February 27 at 1:05PM PST until March 1 at 4:00AM PST by NWS Medford OR

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. Snow and blowing snow will also create periods of very low visibility and drifting snow. * WHERE...Portions of Klamath, Lake, Modoc, and northeastern Siskiyou counties, including Tulelake, Alturas, Davis Creek, Klamath Falls, Adel, Lakeview, Valley Falls, Fort Rock, and portions of highways 140, 97, 31, 139, 299, and 395. * WHEN...From 1 AM Thursday to 4 AM PST Friday. * IMPACTS...Expect periods of low visibility in blowing snow. Damaging winds could blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * 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

High Wind Warning

High Wind Warning issued February 27 at 12:59PM PST until March 1 at 4:00AM PST by NWS Reno NV

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph. Wind prone areas could see gusts exceed 80 mph. * WHERE...In California, Surprise Valley California. In Nevada, Northern Washoe County and Greater Reno-Carson City-Minden Area. * WHEN...From 7 AM Thursday to 4 AM PST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

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Area
Surprise Valley California; Greater Reno-Carson City-Minden Area; Northern Washoe County

Winter Storm Warning

Winter Storm Warning issued February 27 at 12:52PM PST until March 1 at 4:00AM PST by NWS Medford OR

* WHAT...Heavy snow and blowing snow expected above 3500 feet. Total snow accumulations of 4 to 10 inches. Winds gusting as high as 50 mph. * WHERE...Central Siskiyou County and South Central Siskiyou County, including McCloud, Mount Shasta City, Weed, and portions of Interstate 5 and highway 97, and highway 98 at Snowman Summit and Dead Horse Summit. * WHEN...From 4 PM Wednesday to 4 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
Central Siskiyou County; South Central Siskiyou County

Winter Storm Warning

Winter Storm Warning issued February 27 at 12:52PM PST until March 1 at 4:00AM PST by NWS Medford OR

* WHAT...Heavy snow and blowing snow expected above 3000 feet. Total snow accumulations of 5 to 10 inches, 1 to 2 feet over the higher terrain. Winds gusting as high as 50 mph. * WHERE...Western Siskiyou County above 3000 feet, including portions of highway 3 at Scott Mountain Pass and Forest Mountain Pass, and Etna Summit. * WHEN...From 4 PM Wednesday to 4 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

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Area
Western Siskiyou County

Winter Storm Warning

Winter Storm Warning issued February 27 at 12:52PM PST until March 1 at 4:00AM PST by NWS Medford OR

* WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 6 to 12 inches, with 1 to 2 feet expected above 5000 feet. Winds gusting as high as 60 mph. * WHERE...The Cascade and Siskiyou Mountains, including Howard Prairie, Union Creek, Crater Lake, Diamond Lake, Crescent Lake, Tennant, and all passes, including portions of Interstate 5 and highways 58, 138, 230, 62, 66, 97, and 140. * WHEN...From 4 PM Wednesday to 4 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. Blowing and drifting snow could significantly reduce visibility. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Although lesser snow amounts are possible along Interstate 5 at Siskiyou Summit and highway 66, travel impacts are still a concern due to the combination of snow and gusty winds. One inch per hour snowfall rates are expected in the Cascades between 4 AM and 4 PM Thursday. * 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; South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades

Blizzard Warning

Blizzard Warning issued February 27 at 12:18PM PST until March 3 at 4:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely, particularly from Friday evening through Saturday morning. 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 7 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 4 AM Thursday to 4 AM PST Sunday. * IMPACTS...Whiteout conditions with near zero visibility at times due to blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening.

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Area
Lassen-Eastern Plumas-Eastern Sierra Counties

Blizzard Warning

Blizzard Warning issued February 27 at 12:18PM PST until March 3 at 10:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely, particularly from Friday evening through Saturday morning. 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 10 AM Thursday to 10 AM PST Sunday. * IMPACTS...Whiteout conditions with near zero visibility at times due to blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening.

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Area
Greater Lake Tahoe Area; Greater Lake Tahoe Area

Blizzard Warning

Blizzard Warning issued February 27 at 12:18PM PST until March 3 at 10:00AM PST by NWS Reno NV

* WHAT...Blizzard conditions likely, particularly from Friday night through Saturday. 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 4 PM Thursday to 10 AM PST Sunday. * IMPACTS...Whiteout conditions with near zero visibility at times due to blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening.

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Area
Mono

Blizzard Warning

Blizzard Warning issued February 27 at 12:06PM PST until March 3 at 10:00AM PST by NWS Sacramento CA

* WHAT...Extremely dangerous to impossible travel from blizzard conditions Friday into Saturday morning. Total snow accumulations of 5 to 10 feet above 5000 feet, with 1 to 4 feet above 3000 feet from Thursday through Sunday morning. Minor accumulations down to around 2000 feet. Winds gusting as high as 65 mph. * WHERE...West Slope Northern Sierra Nevada, Northeast Foothills, Motherlode, and Western Plumas County/Lassen Park above 2000 feet. Including Interstate 80 and US Highway 50. * WHEN...From 4 AM PST Thursday to 10 AM PST Sunday. Blizzard conditions Friday through Saturday morning. * IMPACTS...Extremely dangerous to impossible travel conditions with extended road closures likely. Widespread blowing snow will create blizzard conditions with white-out conditions and near zero visibility. Very strong winds, combined with heavy snow could cause extensive tree damage and extended power outages. * ADDITIONAL DETAILS...Snow levels initially around 5000 to 6000 feet, lowering to 4000 to 5000 feet Friday, and down to around 2000 feet by Saturday. Snow rates of 2 to 4 inches per hour at times. Blizzard conditions expected Friday into Saturday morning when snowfall is heaviest.

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Area
Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

Winter Storm Warning

Winter Storm Warning issued February 27 at 12:06PM PST until March 3 at 10:00AM PST by NWS Sacramento CA

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 4 feet. Winds gusting as high as 60 mph. * WHERE...Shasta County mountains including Interstate 5, Burney Basin, and northern Coastal Range above 2000 feet. * WHEN...From 10 PM PST Wednesday to 10 AM PST Sunday. * IMPACTS...Difficult to impossible travel conditions with whiteout conditions at times from blowing snow, chain controls, and road closures. Strong winds could cause tree damage and power outages. * ADDITIONAL DETAILS...Snow levels around 5000 feet initially, lowering to around 3000 to 4000 feet Friday, and then 1500 to 2000 feet by Saturday. Potential for minor accumulations down to around 1000 feet Saturday morning. Snow rates of 1 to 3 inches per hour at times. Heaviest snow expected Thursday night into 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

Frost Advisory

Frost Advisory issued February 27 at 8:33AM PST until February 28 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 Wednesday. * 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
Disclaimer

Currently

Fair 46°F
30.17in
Barometer
71%
Humidity
North 5.8mph
Wind
Fair

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