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Severe heat prompts a Heat Advisory across Northern California today

Triple digit heat and the potential for mountain thunderstorms are ahead for your Monday

Posted: Jul 16, 2018 6:35 AM

Get ready for a scorching hot day across the majority of Northern California and the potential for thunderstorms in the Northern Mountains this afternoon. The thunderstorms from last night have tapered off this morning, but the potential for active weather looks likely in areas of Trinity, Shasta, and Siskiyou Counties this afternoon. Skies are mostly clear this morning, and most of our region will have sunny skies today. Clouds will increase in the mountains this afternoon. Temperatures have dipped into the 60's to 70's in the valley overnight, and into the 40's to 50's in the mountains this morning. Winds are out of the Northeast to around 5mph this morning, but are projected to become out of the South to 10mph this afternoon. High temperatures are projected to climb into the 102 to 109 degree range in the valley this afternoon, and into the high 80's to high 90's in the mountains. Humidity will dip to around 15 percent later today. The low humidity and severe heat will combine to result in high to extreme fire danger this afternoon. The potential for dry lightning in the Northern Mountains will also elevate fire danger later today. A Heat Advisory is in place for the entire valley, and some mountain areas through 8pm Wednesday night.

The severe heat will continue for the next few days, but the chance for active weather will move off to the North and East for the middle of the week. Temperatures will be as hot if not hotter than today through Wednesday. Very low humidity paired with the severe heat will result in elevated fire danger this week. There will be a very modest dip in temperatures on the way towards the end of the week, but all of Northern California will have temperatures staying above average. The potential for mountain thunderstorms will be returning later this week, and mostly looks to impact portions of the Sierra. Temperatures will continue to be very hot through your upcoming weekend.

California Coronavirus Cases

Data is updated nightly.

Cases: 1114524

Reported Deaths: 18726
CountyCasesDeaths
Los Angeles3645207438
San Bernardino845311129
Riverside806761400
San Diego71648968
Orange696941554
Kern38316445
Fresno35973471
Sacramento33133546
Santa Clara30676463
Alameda27485499
San Joaquin24649503
Contra Costa22412258
Stanislaus20370416
Tulare19752303
Ventura18040174
Imperial15053353
San Francisco14445158
Monterey13886113
San Mateo13203169
Sonoma11428155
Merced10986176
Santa Barbara10922133
Kings1003886
Solano934980
Marin7518128
Placer577867
Madera571480
San Luis Obispo561835
Yolo419975
Shasta409542
Santa Cruz389827
Butte366459
Napa275717
Sutter263813
El Dorado19304
San Benito174115
Yuba173210
Lassen14803
Tehama143523
Mendocino138522
Nevada10189
Lake83218
Glenn8296
Humboldt7309
Tuolumne7088
Colusa6426
Mono4993
Siskiyou4951
Amador45016
Calaveras43421
Inyo28316
Del Norte2731
Plumas1770
Trinity1130
Modoc1110
Mariposa1042
Alpine420
Sierra170
Unassigned00
Chico
Scattered Clouds
59° wxIcon
Hi: 67° Lo: 40°
Feels Like: 59°
Oroville
Clear
60° wxIcon
Hi: 63° Lo: 41°
Feels Like: 60°
Paradise
Scattered Clouds
59° wxIcon
Hi: 59° Lo: 41°
Feels Like: 59°
Chester
Overcast
41° wxIcon
Hi: 46° Lo: 27°
Feels Like: 41°
Red Bluff
Clear
60° wxIcon
Hi: 67° Lo: 44°
Feels Like: 60°
Willows
Scattered Clouds
59° wxIcon
Hi: 68° Lo: 45°
Feels Like: 59°
The last full week of November began in a beautiful way around northern California with sunshine, a few clouds and above average highs. A disturbance will bring a chance for mountain showers late Tuesday, but little will fall.
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