407
ASUS46 KSTO 181610
RWRCA
NORTHERN AND CENTRAL CA REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE SACRAMENTO CA
800 AM PST THU DEC 18 2025
NOTE: FAIR INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
CAZ001-003-181700-
NORTHWEST AREA
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CRESCENT CITY CLOUDY 54 49 83 S22G33 30.03S
UKIAH FOG 46 46 100 CALM 30.17R VSB 1
CAZ005>008-065-075-181700-
BAY AREA
CITY SKY/WX TMP DP RH WIND PRES REMARKS
SANTA ROSA FOG 47 47 100 CALM 30.17S VSB 1/2
NAPA CLOUDY 51 50 96 NW6 30.17R FOG
CONCORD CLOUDY 54 52 93 CALM 30.17R
OAKLAND CLOUDY 51 51 100 CALM 30.18R FOG
SAN FRAN ARPT CLOUDY 51 49 92 S3 30.17R FOG
LIVERMORE CLOUDY 49 46 90 W5 30.17R
HAYWARD CLOUDY 51 51 100 CALM 30.17S FOG
MOFFETT ARPT CLOUDY 46 46 100 CALM 30.18R
SAN JOSE ARPT CLOUDY 48 45 89 NW3 30.18R
CAZ009-010-034-037-074-181700-
CENTRAL COAST
CITY SKY/WX TMP DP RH WIND PRES REMARKS
WATSONVILLE CLEAR 49 48 97 CALM 30.16R
SALINAS CLOUDY 54 52 93 E10 30.15R
MONTEREY FOG 51 51 100 CALM 30.15R VSB 1/2
SAN LUIS OBISP CLEAR 53 50 89 E3 30.10R
SANTA MARIA PTCLDY 52 52 100 N5 30.09R FOG
HALF MOON BAY PTCLDY 45 45 100 CALM 30.16S FOG
CAZ015-016-181700-
NORTHERN SACRAMENTO VALLEY
CITY SKY/WX TMP DP RH WIND PRES REMARKS
REDDING CLOUDY 50 48 93 CALM 30.12R
RED BLUFF CLOUDY 51 50 96 SE6 30.14F FOG
OROVILLE FOG 51 51 100 CALM 30.18R VSB 1/4
CHICO FOG 50 50 100 S7 30.16S VSB 1/4
CAZ016>018-181700-
SOUTHERN SACRAMENTO VALLEY
CITY SKY/WX TMP DP RH WIND PRES REMARKS
AUBURN CLEAR 45 45 100 CALM 30.16R
BEALE AFB FOG 53 52 97 CALM 30.16R VSB 1/8
LINCOLN CLOUDY 52 52 100 CALM 30.16R
MARYSVILLE FOG 52 52 100 CALM 30.17R VSB 3/4
SAC INTL ARPT CLOUDY 52 51 97 CALM 30.16R
MATHER AIRPORT FOG 54 54 100 S6 30.15S VSB 3/4
SAC EXEC ARPT CLOUDY 53 52 96 CALM 30.16F
VACAVILLE CLOUDY 52 50 93 S3 30.17S
CAZ019>021-181700-
SAN JOAQUIN VALLEY
CITY SKY/WX TMP DP RH WIND PRES REMARKS
STOCKTON FOG 52 52 100 SE5 30.17R VSB 1/4
MODESTO CLOUDY 48 47 96 SE5 30.18S FOG
MERCED CLOUDY 47 46 97 SE3 30.19R FOG
LEMOORE CLOUDY 47 46 97 SE3 30.21R FOG
FRESNO CLOUDY 44 43 96 CALM 30.21R FOG
HANFORD FOG 46 45 96 CALM 30.22R VSB 3/4
PORTERVILLE CLOUDY 48 46 93 CALM 30.23R
BAKERSFIELD CLOUDY 46 44 93 S3 30.21R FOG
CAZ011-012-071-181700-
NORTHERN MOUNTAINS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
YREKA CLOUDY 41 38 89 S3 30.03S
MOUNT SHASTA MOCLDY 44 41 89 MISG 30.08R
ALTURAS PTCLDY 42 30 62 S8 30.04F
CAZ011-012-071-181700-
SIERRA NEVADA MTNS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLUE CANYON PTCLDY 44 14 29 E3 30.21S
TRUCKEE PTCLDY 30 25 80 CALM 30.20S
TAHOE VLY ARPT PTCLDY 44 21 40 S7 30.22R
MAMMOTH LAKES PTCLDY 41 27 56 VRB3 30.24S
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