California County Alert Archives from the National Weather Service

Alert Archives for All California Counties

If there's no Alerts for the day, there's no log file

Select a date: 26 total alerts issued on this day Updates Every 15 Minutes
Alert Summary \| Alert RSS Feed \| Alert Archives \| Icon key Last Update:August 31, 2026 - 7:00 am PDT

Lassen County 3 alerts

FIRE WEATHER WATCH
The National Weather Service in Reno has issued a Fire Weather
Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 30 9:19 am	Expired: Aug 31 2:00 pm	Duration: 1 day 4 hrs 41 mins

RED FLAG WARNING (2 updates)
The National Weather Service in Reno has issued a Red Flag
Areas affected: Surprise Valley California; Eastern Lassen County; Northern Washoe County
Effective: Aug 31 11:42 am	Expired: Sep 1 9:00 am	Duration: 21 hrs 18 mins
The National Weather Service in Reno has issued a Red Flag
Areas affected: Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties
Effective: Aug 31 11:42 am	Expired: Sep 1 9:00 am	Duration: 21 hrs 18 mins

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Modoc County 3 alerts

FIRE WEATHER WATCH
The National Weather Service in Reno has issued a Fire Weather
Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 30 9:19 am	Expired: Aug 31 2:00 pm	Duration: 1 day 4 hrs 41 mins

RED FLAG WARNING (5 updates)
The National Weather Service in Medford has issued a Red Flag
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 30 12:56 pm	Expired: Aug 31 7:00 am	Duration: 18 hrs 04 mins
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 4:39 am	Expired: Aug 31 4:45 pm	Duration: 12 hrs 06 mins
The National Weather Service in Reno has issued a Red Flag
Areas affected: Surprise Valley California; Eastern Lassen County; Northern Washoe County
Effective: Aug 31 11:42 am	Expired: Sep 1 9:00 am	Duration: 21 hrs 18 mins
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 12:30 pm	Expired: Aug 31 8:00 pm	Duration: 7 hrs 30 mins
Conditions have weakened with humidities increasing this evening
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 7:42 pm	Expired: Aug 31 8:45 pm	Duration: 1 hr 03 mins

FROST ADVISORY
Areas affected: Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
Effective: Aug 31 12:19 pm	Expired: Sep 1 4:00 am	Duration: 15 hrs 41 mins

Sierra County 3 alerts

FIRE WEATHER WATCH
The National Weather Service in Reno has issued a Fire Weather
Areas affected: Surprise Valley California; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Northern Washoe County
Effective: Aug 30 9:19 am	Expired: Aug 31 2:00 pm	Duration: 1 day 4 hrs 41 mins

RED FLAG WARNING
The National Weather Service in Reno has issued a Red Flag
Areas affected: Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties
Effective: Aug 31 11:42 am	Expired: Sep 1 9:00 am	Duration: 21 hrs 18 mins

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Siskiyou County

RED FLAG WARNING (4 updates)
The National Weather Service in Medford has issued a Red Flag
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 30 12:56 pm	Expired: Aug 31 7:00 am	Duration: 18 hrs 04 mins
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 4:39 am	Expired: Aug 31 4:45 pm	Duration: 12 hrs 06 mins
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 12:30 pm	Expired: Aug 31 8:00 pm	Duration: 7 hrs 30 mins
Conditions have weakened with humidities increasing this evening
Areas affected: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Klamath Basin and the Fremont-Winema National Forest
Effective: Aug 31 7:42 pm	Expired: Aug 31 8:45 pm	Duration: 1 hr 03 mins

Ventura County

BEACH HAZARDS STATEMENT
Areas affected: Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Effective: Aug 30 1:16 pm	Expired: Aug 31 3:00 pm	Duration: 1 day 1 hr 44 mins

El Dorado County

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Placer County

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Nevada County

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Plumas County

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Alpine County

LAKE WIND ADVISORY
Areas affected: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake
Effective: Aug 31 1:21 pm	Expired: Sep 1 8:00 pm	Duration: 1 day 6 hrs 39 mins

Imperial County

DUST ADVISORY (2 updates)
The National Weather Service in Phoenix has issued a
Areas affected: La Paz, AZ; Yuma, AZ; Imperial, CA
Effective: Aug 31 3:19 pm	Expired: Aug 31 4:15 pm	Duration: 0 hrs 56 mins
At 343 PM MST/343 PM PDT/, a wall of dust was along a line extending
Areas affected: La Paz, AZ; Yuma, AZ; Imperial, CA
Effective: Aug 31 3:44 pm	Expired: Aug 31 4:15 pm	Duration: 0 hrs 31 mins

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