522  
ASUS46 KSTO 151403  
RWRCA  
 
NORTHERN AND CENTRAL CA REGIONAL WEATHER ROUNDUP  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
600 AM PST MON DEC 15 2025  
 
NOTE: FAIR INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO  
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY
.  
 
CAZ001-003-151500-  
NORTHWEST AREA  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
CRESCENT CITY CLOUDY 54 50 86 S13G24 30.15F  
UKIAH MOCLDY 38 36 92 CALM 30.26R  

 
 
CAZ005>008-065-075-151500-  
BAY AREA  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
SANTA ROSA FOG 40 40 100 CALM 30.26R VSB 1/2  
NAPA FOG 40 40 100 CALM 30.28R VSB 3/4  
CONCORD CLOUDY 40 40 100 N5 30.28R FOG  
OAKLAND CLOUDY 43 42 97 CALM 30.26R FOG  
SAN FRAN ARPT CLOUDY 45 43 93 N10 30.25R FOG  
LIVERMORE FOG 35 35 100 NW3 30.24S VSB 1/4  
HAYWARD CLOUDY 42 39 89 CALM 30.25R  
MOFFETT ARPT FOG 45 45 100 CALM 30.24R VSB 3/4  
SAN JOSE ARPT FOG 44 44 100 CALM 30.24R VSB 1/2  

 
CAZ009-010-034-037-074-151500-  
CENTRAL COAST  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
WATSONVILLE CLOUDY 43 42 97 E3 30.20F FOG  
SALINAS CLOUDY 45 44 97 SE15 30.19S FOG  
MONTEREY PTCLDY 43 42 97 E6 30.19R  
SAN LUIS OBISP PTCLDY 48 48 100 SE5 30.16F FOG  
SANTA MARIA CLOUDY 50 49 96 NE3 30.17S  
HALF MOON BAY PTCLDY 41 41 100 CALM 30.22R  

 
CAZ015-016-151500-  
NORTHERN SACRAMENTO VALLEY  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
REDDING FOG 38 37 97 CALM 30.26R VSB 1/2  
RED BLUFF CLOUDY 40 39 97 CALM 30.28R FOG  
OROVILLE CLOUDY 39 39 100 CALM 30.31R FOG  

 
CAZ016>018-151500-  
SOUTHERN SACRAMENTO VALLEY  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
AUBURN CLEAR 37 36 93 CALM 30.23R  
BEALE AFB CLOUDY 41 40 96 CALM 30.28R FOG  
LINCOLN CLOUDY 39 39 100 CALM 30.28R  
MARYSVILLE FOG 39 39 100 CALM 30.30R VSB 3/4  
SAC INTL ARPT FOG 41 40 96 CALM 30.29R VSB 1/2  
MATHER AIRPORT CLOUDY 41 41 100 CALM 30.26F FOG  
SAC EXEC ARPT CLOUDY 41 40 96 NE3 30.29R FOG  
VACAVILLE FOG 40 40 100 CALM 30.29R VSB 3/4  

 
CAZ019>021-151500-  
SAN JOAQUIN VALLEY  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
STOCKTON CLOUDY 40 32 73 SE6 30.27R FOG  
MODESTO FOG 40 39 97 S3 30.27S VSB 1  
MERCED FOG 41 40 96 SE3 30.27S VSB 3/4  
LEMOORE CLOUDY 42 41 96 CALM 30.29R FOG  
FRESNO FOG 42 40 92 S3 30.28R VSB 1  
HANFORD FOG 41 41 100 SE3 30.29S VSB 1  
PORTERVILLE CLOUDY 43 43 100 CALM 30.29S  
BAKERSFIELD CLOUDY 42 41 96 E3 30.26S FOG  

 
CAZ011-012-071-151500-  
NORTHERN MOUNTAINS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
YREKA MOCLDY 33 33 100 S5 30.26F WCI 29  
MOUNT SHASTA MOCLDY 42 32 67 CALM 30.25R  
ALTURAS MOCLDY 27 24 89 SW5 30.31R WCI 22  

 
CAZ011-012-071-151500-  
SIERRA NEVADA MTNS  
 
CITY SKY/WX TMP DP RH WIND PRES REMARKS
 
BLUE CANYON PTCLDY 52 16 24 CALM 30.33R  
TRUCKEE PTCLDY 19 18 93 CALM 30.39S  
TAHOE VLY ARPT FOG 26 25 96 S6 30.40S VSB 1/2 WCI 19  
MAMMOTH LAKES CLEAR 12 9 85 NW3 30.42R  

 
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page