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Red Flag Warning Ahead!

High Fire Danger over the next two days with warm temperatures, windy conditions and very low humidity.

Posted: Sep 19, 2018 9:12 PM

Warmer temperatures and elevated fire danger are on the way for the rest of your week across Northern California. Skies are clear to mostly clear for the start of your Wednesday, and will stay sunny to mostly sunny today. Haze from active wildfires may become more widespread today, as winds pick up out of the North. Temperatures have dipped into the mid 50's for most of the valley overnight, and mountain areas are starting out in the 30's to 40's this morning. Winds are out of the Northeast to around 10mph early today, and will pick up to around 15mph out of the Northwest this afternoon. Stronger winds will develop tonight into tomorrow, and that will contribute to the increasing fire danger. Humidity will also play a role in the elevated fire danger. Humidity did not recover all that well overnight, and is projected to dip into the 10 to 25 percent range this afternoon. High temperatures are projected to climb into the low 90's in the valley this afternoon, and into the 70's to mid 80's in the mountains. A Fire Weather Watch or Red Flag Warning is set to go into effect at 7pm Wednesday evening, and stay in place through 7pm Thursday afternoon.

Stronger North winds, low humidity, and warmer temperatures will all contribute to making Thursday the most concerning fire danger day of this week. Temperatures will be a few degrees warmer than Wednesday, and winds will gusts up to around 30mph out of the North. The gusty North winds will push haze from the active fires into the valley for the end of the week, and air quality will become more impacted on Thursday. Friday may actually end up a few degrees cooler than Thursday, as a cooler system passes through to our North. Valley areas are projected to range from the high 80's to low 90's from Friday through Sunday. The fall season officially arrives on Saturday evening, making Sunday your first full day of the fall season.

There has been some changes to the longer range forecast for next week. The latest models are showing high pressure building out in the Eastern Pacific early next week, and that will result in dry weather and warmer temperatures through the middle of next week. Valley areas will end up back in the low to mid 90's from Monday through Wednesday.

California Coronavirus Cases

Data is updated nightly.

Cases: 3592560

Reported Deaths: 53854
CountyCasesDeaths
Los Angeles120012821916
Riverside2909043892
San Bernardino2875133116
San Diego2623603371
Orange2622414075
Santa Clara1114601822
Kern104057937
Fresno960231466
Sacramento941291510
Alameda811681285
Ventura78184883
San Joaquin672841182
Contra Costa63142701
Stanislaus56602957
Tulare48203770
Monterey42373329
San Mateo39225525
San Francisco34480426
Santa Barbara32267422
Solano30305167
Merced29376413
Sonoma28379303
Imperial26946641
Kings22150227
Placer20035232
San Luis Obispo19835246
Madera15596214
Santa Cruz14790187
Marin13337198
Yolo12895185
Shasta11102179
Butte11033169
El Dorado9204100
Napa909475
Sutter892398
Yuba579539
San Benito578161
Lassen563324
Tehama511852
Nevada402274
Tuolumne397259
Mendocino383444
Amador348041
Humboldt326633
Lake318141
Glenn223623
Colusa214213
Calaveras192849
Siskiyou179014
Inyo133437
Mono12194
Del Norte10205
Plumas6546
Modoc4604
Mariposa3957
Trinity3735
Sierra1000
Alpine840
Unassigned00
Oroville
Clear
46° wxIcon
Hi: 62° Lo: 43°
Feels Like: 44°
Oroville
Clear
46° wxIcon
Hi: 59° Lo: 45°
Feels Like: 44°
Auburn
Clear
43° wxIcon
Hi: 53° Lo: 38°
Feels Like: 38°
Red Bluff
Partly Cloudy
40° wxIcon
Hi: 39° Lo: 20°
Feels Like: 37°
Red Bluff
Clear
40° wxIcon
Hi: 56° Lo: 39°
Feels Like: 37°
Oroville
Clear
46° wxIcon
Hi: 63° Lo: 40°
Feels Like: 44°
This weekend's weather is nice but active weather is headed our way Monday through Wednesday. This will include rain, low elevation snow and the chance for valley thunderstorms.
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