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Storm Tracker Forecast: Improving air quality & elevated fire danger today

Gusty winds will continue to improve air quality and keep fire danger elevated today. Cooler temperatures and the potential for shower will return to our region for the end of this week.

Posted: Sep 16, 2020 6:06 AM

Not much is expected to change in your forecast today, but temperatures may end up a degree or two cooler than Tuesday. Gusty winds out of the south will continue to result in improving air quality this afternoon, but will also result in elevated fire danger this afternoon. A Red Flag Warning for high fire danger is set to go into effect at 1PM and last through 8PM in portions of Siskiyou and Modoc Counties. Wind gusts up to 35mph out of the southwest will be possible, and humidity will dip to as low as 10 percent in that area. A Fire Weather Watch is set to go into effect for portions of the Southern Cascades and Eastern Slopes of the Sierra on Thursday morning and is set to last through Friday evening. Gusty winds out of the south and low humidity will be the main concern for elevated fire danger. It would not be surprising to see this upgraded to a Red Flag Warning but winds are not expected to be as strong as this afternoon during that time.

Low pressure tracking towards the Pacific Northwest from the Pacific is going to bring another round of gusty south winds to our region today. Air quality does look better than this time yesterday, and is mostly starting out in the moderate to unhealthy for sensitive groups range in the valley, while some areas are still stuck in the unhealthy range this morning. Visibility does look a little better than yesterday morning, but will still be an issue for your morning commute. Temperatures are starting out in the 50's to 60's in the valley and foothills, and in the 30's to 50's in the mountains. Winds are up to around 10mph out of the northeast in some areas this morning, but south winds will pick back up this afternoon. Most of us will have south winds to around 10mph later today, but gusts could reach up to 30mph in some mountain areas. High temperatures will range from the high 80's to low 90's in the valley, while foothill and mountain areas top out in the high 70's to mid 80's this afternoon. Humitidy is projected to dip into the 15 to 30 percent range for most of our region, but could dip to as low as 10 percent in the northeast portions of California. The gusty winds, dry fuels, and low humidity will keep fire danger in the high range today.

Low pressure will begin to track into the Pacific Northwest on Thursday and that will push a cold front through northern California. Our temperatures will drop by around 5 degrees compared to Wednesday, and there will be potential for showers and thunderstorms in the Nothern Mountains. This will also bring another round of gusty south winds to higher elevations in Plumas, Lassen, Modoc, and Siskiyou Counties. Friday will be even cooler than Thursday, with valley areas topping out in the mid to high 70's. Foothill and mountain areas will mostly end up in the upper 60's to lower 70's on Friday afternoon. Showers are expected to become more widespread over the northern portion of our region, with a slight chance for some showers making it into the Redding area. The best chance for showers will be in areas closest to the coast and the Oregon border. The low pressure to our north will move east as we head into your weekend and that will allow temperatures to warm back into the low to mid 80's in the valley on Saturday. Most mountain and foothill areas will still end up in the 70's for the first half of your weekend. More warming is expected on Sunday, with valley areas projected to end up in the upper 80's to low 90's. Mountain and foothill areas will top out in the 70's to 80's on Sunday afternoon. The temperature trend is not expected to change much from Sunday through the start of next week, but the current projections do show a modest drop in temperatures from Monday into Tuesday. High pressure may bring additional warming back into our forecast from the middle to latter part of next week.

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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