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The threat of thunderstorms prompts a Red Flag Warning tonight

Mostly mild heat and the potential for mountain t-storms is ahead for your Tuesday.

Posted: Aug 14, 2018 6:34 AM

Mild heat and moderate to unhealthy air quality are expected to continue across Northern California today. The potential for dry thunderstorms in the mountains will increase fire danger heading into this evening and will prompt a Red Flag Warning in Northeastern California and portions of Oregon from 5pm this evening through 11am Wednesday morning. Modoc County and portions of Siskiyou County are included in that warning. Today will more than likely feel similar to Monday for the majority of Northern California. Temperatures have dipped into the low to mid 60's in the valley overnight, and into the 40's to 50's in the mountains this morning. Winds are mostly light and out of the Northeast early today, but will shift to become out of the South to 10mph this afternoon. The Delta Breeze will continue to keep high temperatures in check this afternoon. Skies will be mostly clear through the day, but haze will limit visibility and air quality in areas North of the Carr Fire and Mendocino Complex Fires. High temperatures are projected to climb into the mid to high 90's in the valley this afternoon, and into the low to mid 90's in foothill and mountain areas. The potential for thunderstorms will return to the Sierra and Cascade ranges tonight. The best chance for active weather will be on the Eastern slopes but we can't rule out some activity spilling into the Western slopes late tonight through tomorrow morning. Dry lightning will result in elevated fire danger in some areas.

There is not much change expected through the end of the week, but the potential for thunderstorms is not expected to stick around after noon on Wednesday. Temperatures will continue to climb into the mid to high 90's in the valley, while mountain areas mostly top out in the low to mid 90's. Dry weather with sunny to mostly sunny skies are ahead for the end of the week. Smoke may become a bigger concern again moving forward. We will continue to monitor air quality and bring you the latest impact projected in our region. Temperatures are expected to become slightly hotter this weekend, but models have started to bring weekend temperature projections down by a few degrees. Mid 90's to low triple digits are projected for your weekend. Overnight low temperatures will continue to bottom out in the low to mid 60's through your extended forecast.

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 238681

Reported Deaths: 6169
CountyConfirmedDeaths
Los Angeles1056653405
Riverside18041463
San Diego14623370
Orange14413345
San Bernardino12746258
Imperial652397
Alameda6156136
Fresno528975
Kern476876
Santa Clara4572158
Tulare4323128
San Joaquin391454
San Francisco364850
Sacramento339768
San Mateo3311108
Contra Costa324877
Ventura309646
Santa Barbara289629
Kings250434
Marin239419
Stanislaus231044
Monterey169115
Solano140225
Sonoma11857
Merced113111
Placer72411
San Luis Obispo6422
Yolo55524
Madera5415
Santa Cruz3993
Napa3334
San Benito2392
Lassen2330
El Dorado1980
Sutter1973
Butte1892
Humboldt1334
Shasta1294
Nevada1171
Glenn1150
Yuba941
Mendocino850
Tehama821
Lake790
Colusa590
Del Norte511
Mono421
Calaveras400
Inyo321
Siskiyou310
Tuolumne300
Mariposa271
Amador240
Plumas100
Alpine20
Trinity20
Sierra10
Unassigned00
Chico
Few Clouds
77° wxIcon
Hi: 93° Lo: 61°
Feels Like: 78°
Oroville
Clear
80° wxIcon
Hi: 95° Lo: 61°
Feels Like: 80°
Paradise
Few Clouds
77° wxIcon
Hi: 85° Lo: 61°
Feels Like: 78°
Chester
Clear
69° wxIcon
Hi: 78° Lo: 51°
Feels Like: 69°
Red Bluff
Clear
85° wxIcon
Hi: 96° Lo: 64°
Feels Like: 85°
Willows
Few Clouds
77° wxIcon
Hi: 96° Lo: 57°
Feels Like: 78°
We'll have sunny to mostly sunny skies and warmer temperatures today. A slight chance for showers will pop up in Lassen County this evening. Temperatures will be a little cooler on Friday, but will heat back up for your 4th of July weekend.
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