Areas Affected: Central Sacramento Valley including Glenn, Colusa, Yuba, Northern Sutter, Butte County Below 1000 Ft; E Mendocino NF; Eastern Delta; Eastern Portion of Shasta, Trinity NF; Lake County Portion of Lake-Nappa-Sonoma RU; Northern Motherlode From 1000 to 3000 Ft. From Yuba To Amador Counties; Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft; Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft - Excludes the Delta; Northern Sierra Foothills from 1000 to 3000 Ft. Includes Nevada-Yuba-Placer RU and Anador-Eldorado RU; Southern Motherlode From 1000 to 3000 Ft, Calaveras and Toulumne Counties; Southern Sacramento Valley In Yolo, Sacramento, Far Western Placer, Southern Sutter and Solano County Below 1000 Ft - Excludes the Delta; Southern and Eastern Mendocino NF, Southeast Edge Shasta, Trinity NF and Western Portions of Tahima, Glenn RU
...Gusty wind and low humidity tonight through Sunday...
.Well above normal temperatures combined with gusty northerly
wind and low humidity will lead to critical fire weather
conditions this weekend. The strongest winds are expected in the
Sacramento Valley, west of Interstate 5, extending into the
Coastal Range. Locally gusty wind is also expected through the
Northeast Foothills of the Sacramento Valley and Motherlode.
Daytime humidities will be in the single digits and teens with
widespread moderate to poor overnight humidity recovery.
Cooler temperatures with higher humidity and lighter wind
expected early next week.
...RED FLAG WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
8 PM PDT SUNDAY FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER
ZONES 213, 215, 216, 217, 218, 219, 220, 263, 264, 266, 267, AND
* WIND...Northerly wind 10 to 25 mph with gusts up to 35 mph,
strongest on the west side of the Sacramento Valley extending
into the Coastal Range.
* HUMIDITY...Daytime minimum humidity as low as 6-12 percent with
areas of maximum humidity recovery of only 20-35 percent RH.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
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A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.
Areas Affected: Central Sacramento Valley; Clear Lake, Southern Lake County; Motherlode; Northeast Foothills, Sacramento Valley; Northern Sacramento Valley; Northern San Joaquin Valley; Southern Sacramento Valley
...Excessive Heat through this weekend...
.Strong high pressure will build into Northern California through
the weekend bringing a period of hot temperatures across the
region. Temperatures over much of the Central Valley and portions
of the foothills are likely to top 100 degrees today through
Sunday. There is potential for heat-related illness to humans,
pets, and livestock with long outdoor exposure.
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY...
* TEMPERATURE...100 to 108 degrees.
* IMPACTS...Heat-related illnesses (including heat exhaustion
and heat stroke) are possible to humans, pets, and livestock
with long outdoor exposure.
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A Heat Advisory means that a prolonged period of hot temperatures
is expected and will create a situation in which heat illnesses
are possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sun, and check up on relatives and
Take extra precautions, if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.
To reduce risk during outdoor work, the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency, call 9 1 1.