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Storm Tracker Forecast: Dangerous heat & elevated fire danger today

Dangerous heat and elevated fire danger are set to persist across northern California today. We'll get a little hotter on Tuesday and the threat of thunderstorms will return to some mountain areas. A modest dip in temperatures is expected late this week, but we'll be hot through your 4th of July Weekend.

Posted: Jun 28, 2021 6:04 AM

Dangerous heat will persist across northern California this week, and the threat of thunderstorms will be returning to some of our mountain areas. High pressure centered to our north continues to dominate our forecast Monday, and will continue to do so through this week. The Excessive Heat Warning remains in effect in the valley, foothills, Lassen County and Plumas County through 10pm Wednesday night. The Excessive Heat Warning has been extended through 11pm Thursday in Modoc and Siskiyou Counties. The Excessive Heat Warning remains in effect in northern Trinity County through 9pm Tuesday night. A Red Flag Warning for high fire danger is set to be in effect from 1pm through 9pm today on the west side of Siskiyou County due to localized gusty winds over very dry fuels. We also have a Fire Weather Watch that's been issued for portions of Lassend and Plumas Counties from Tuesday afternoon through Tuesday evening due to the threat of thunderstorms returning to that area. We have clear conditions overhead this morning, and will have plenty of sunshine across northern California today. Temperatures are starting out in the 60's to 70's in the valley and foothills, while mountain areas are starting out in the 50's to 60's. Most of us will have south winds up to around 15mph today, with gusts up to 20mph this afternoon. Siskiyou County will have gusts up to 35mph out of the south this afternoon and evening. Humidity will dip into the 10 to 22 percent range later today. High temperatures are projected to range from 102 to 109 degrees in the valley, 91 to 98 degrees in the foothills, and the lower 90's to around 101 degrees in our mountain zones this afternoon. The heat will be dangerous again today, and the hot temperatures paired with the very dry conditions and dry fuels will keep our fire danger in the moderate to high range this afternoon.

Tuesday is projected to be a degree or two hotter than Monday, and we'll also have the threat of thunderstorms returning to our higher elevations closest to the Nevada border. The threat of thunderstorms has prompted a Fire Weather Watch to be issued for portions of Lassen and Plumas Counties from Tuesday afternoon through Tuesday evening. Moisture drawn north into our region from low pressure to our south will be the source of this thunderstorm threat, and that will be possible through Thursday evening. High temperatures will dip by a few degrees by the end of this week as the ridge breaks down, and we start to get a little more influence from the Delta Breeze. The current forecast keeps valley aresa in the upper 90's to lower trilpe digits from Thursday through this weekend. Foothill and mountain areas will mostly have high temperatures in the 80's to 90's through this weekend. This does look to be a fairly toasty 4th of July weekend on the way, so make sure to plan accordingly. Dress for the heat, plan your outdoor activities for earlier in the day, and don't forget to stay hydrated.

Chico
Clear
63° wxIcon
Hi: 91° Lo: 61°
Feels Like: 63°
Oroville
Clear
63° wxIcon
Hi: 93° Lo: 63°
Feels Like: 63°
Paradise
Clear
63° wxIcon
Hi: 88° Lo: 56°
Feels Like: 63°
Chester
Clear
67° wxIcon
Hi: 68° Lo: 38°
Feels Like: 67°
Red Bluff
Clear
67° wxIcon
Hi: 90° Lo: 56°
Feels Like: 67°
Willows
Clear
59° wxIcon
Hi: 91° Lo: 55°
Feels Like: 59°
The weather will be pulling a 180 as we head into the evening hours and kick off our work week. A north wind will be taking hold, bringing gusty conditions and increased fire danger to the valley, foothills, and the Sierra Mountains. Gusts between 25-35mph are possible from late this evening through Monday night for the valley while the foothills and the Sierra will continue to see the windy conditions through Tuesday morning. This has prompted a Red Flag Warning for the Valley 11pm tonight through 8pm Monday while the Sierra and Foothills will last through Tuesday morning.
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