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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.

Confirmed Cases: 779491

Reported Deaths: 14893
CountyConfirmedDeaths
Los Angeles2585166330
Riverside566811153
San Bernardino51750858
Orange516461123
San Diego44007757
Kern31148340
Fresno27487355
Sacramento21171375
Alameda20364370
Santa Clara20129295
San Joaquin19793414
Stanislaus16229329
Contra Costa15640198
Tulare15517256
Ventura12167142
Imperial11534312
San Francisco1064096
Monterey933765
San Mateo9332142
Santa Barbara8803109
Merced8719133
Kings715877
Sonoma6987114
Marin6522112
Solano608555
Madera429658
Placer340741
San Luis Obispo333227
Yolo273253
Butte272033
Santa Cruz21758
Sutter163110
Napa159213
San Benito127211
Yuba11127
El Dorado10584
Mendocino82218
Lassen7310
Shasta66814
Glenn5483
Nevada5035
Colusa5026
Tehama4874
Humboldt4826
Lake43310
Calaveras30513
Amador28616
Tuolumne2204
Inyo18714
Mono1632
Siskiyou1600
Del Norte1351
Mariposa752
Plumas490
Modoc230
Trinity150
Sierra60
Alpine20
Unassigned00
Chico
Scattered Clouds
86° wxIcon
Hi: 88° Lo: 59°
Feels Like: 86°
Oroville
Clear
84° wxIcon
Hi: 86° Lo: 59°
Feels Like: 84°
Paradise
Scattered Clouds
86° wxIcon
Hi: 81° Lo: 59°
Feels Like: 86°
Chester
Clear
69° wxIcon
Hi: 74° Lo: 45°
Feels Like: 69°
Red Bluff
Clear
88° wxIcon
Hi: 88° Lo: 62°
Feels Like: 88°
Willows
Scattered Clouds
86° wxIcon
Hi: 89° Lo: 59°
Feels Like: 86°
Most of the forecast will remain pleasant and seasonable with big changes possible by next weekend.
KHSL Severe
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