WWUS86 KSTO 190251
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
751 PM PDT Mon May 18 2026

CAZ124-142-144>146-148>150-152>161-163-164-190400-
/O.EXP.KSTO.FW.W.0001.000000T0000Z-260519T0300Z/
Shasta Metro-N. Sac Valley in Tehama County-
Central Glenn Co & Interstate 5-Eastern Glenn County-
Butte County Below 1000 ft-Central Colusa County Incl. I-5-
Eastern Colusa County-Sutter/Yuba counties below 1000 ft-
W. Yolo County including Capay/I-505-
C. Yolo/NE Solano including Woodland-
Sac Metro/W. El Dorado/Amador County-
C. Solano County including Fairfield-
SW Solano County including Vallejo-Sacramento County Delta-
San Joaquin County Delta-C. San Joaquin County including Stockton-
Tracy Triangle Below 1000 ft-NE San Joaquin Valley Below 1000 ft-
W. Stanislaus County Above 1000 ft & I-5-
C. Stanislaus County including Modesto-
751 PM PDT Mon May 18 2026

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES
124,142,144,145,146,148,149,150,152,153,154,155,156,
157,158,159,160,161,163 AND 164...

Northerly winds have diminished, therefore the Red Flag Warning 
for the Sacramento Valley, Delta and northern San Joaquin Valley 
will expire at 8 PM PDT. 

$$

http://weather.gov/sacramento