Regional Weather Roundup
Issued by NWS

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812
ASUS46 KSTO 181215
RWRCA

NORTHERN AND CENTRAL CA REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE SACRAMENTO CA
500 AM PDT MON AUG 18 2025

NOTE: FAIR INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

CAZ001-003-181300-
NORTHWEST AREA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CRESCENT CITY  FOG       56  55  97 N3        30.05S VSB 3/4
ARCATA         NOT AVBL
SHELTER COVE   NOT AVBL
UKIAH          CLEAR     56  51  84 NW3       30.02S
$$

CAZ006-505>513-181300-
BAY AREA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SANTA ROSA     CLEAR     50  48  93 CALM      30.00S
NAPA           CLEAR     51  49  92 CALM      30.00R
CONCORD        CLEAR     60  53  77 S10       30.00S
OAKLAND        PTCLDY    59  56  89 W7        30.02S
SAN FRAN ARPT  MOCLDY    60  56  86 W5        30.02S
LIVERMORE      CLEAR     56  52  86 SW3       30.02S
HAYWARD        CLEAR     59  56  89 W5        30.02S
MOFFETT ARPT   CLEAR     57  52  82 CALM      30.03S
SAN JOSE ARPT  CLEAR     60  51  72 CALM      30.03S
$$
CAZ034-037-514>518-181300-
CENTRAL COAST

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WATSONVILLE    CLEAR     55  52  89 N3        30.03S
SALINAS        CLEAR     58  53  84 N6        30.02S
MONTEREY       CLEAR     57  49  74 E3        30.03S
PT PIEDRAS BLS NOT AVBL
SAN LUIS OBISP CLEAR     54  51  90 CALM      29.97S
SANTA MARIA    CLOUDY    57  56  96 CALM      29.97S
HALF MOON BAY  CLOUDY    57  57 100 N6        30.03S FOG
$$
CAZ015-016-181300-
NORTHERN SACRAMENTO VALLEY

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
REDDING        CLEAR     62  51  67 SE8       29.98R
RED BLUFF      CLEAR     60  52  74 E7        30.00R
OROVILLE       CLEAR     60  52  74 E3        29.98R
$$
CAZ016>018-181300-
SOUTHERN SACRAMENTO VALLEY

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
AUBURN         CLEAR     57  50  77 SE8       30.01S
BEALE AFB      CLEAR     60  52  73 SE10      29.96R
LINCOLN        CLEAR     61  52  72 SE10      29.97R
SAC INTL ARPT  CLEAR     60  52  74 S10       29.96R
MATHER AIRPORT   N/A     55  52  88 SE9       29.97S
SAC EXEC ARPT  CLEAR     59  47  64 SE6       29.97S
VACAVILLE      CLEAR     56  48  74 CALM      29.96R
TRAVIS AFB     CLEAR     58  49  74 SW18      29.94S
$$
CAZ019>021-181300-
SAN JOAQUIN VALLEY

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
STOCKTON       CLEAR     60  54  80 W9        29.98S
MODESTO        CLEAR     61  53  75 N7        29.97S
MERCED         CLEAR     60  53  77 NW7       29.97R
LEMOORE        CLEAR    N/A N/A N/A NW12      29.97R
FRESNO         CLEAR     64  52  64 NW9       29.96S
HANFORD        CLEAR     66  50  56 NW5       29.97R
PORTERVILLE    CLEAR     63  55  75 CALM      29.99R
BAKERSFIELD    CLEAR     67  54  63 NW5       29.98R
$$
CAZ011-012-071-181300-
NORTHERN MOUNTAINS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
YREKA          CLEAR     57  52  83 NE7       30.01R
MOUNT SHASTA   CLEAR     59  35  40 CALM      30.05S
ALTURAS        CLEAR     45  43  93 CALM      30.10R
$$
CAZ011-012-071-181300-
SIERRA NEVADA MTNS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BLUE CANYON    NOT AVBL
TRUCKEE        CLEAR     46  37  71 CALM      30.17S
TAHOE VLY ARPT CLEAR     47  37  68 CALM      30.18R
MAMMOTH LAKES  CLEAR     41  30  65 CALM      30.25R
$$