538
WUUS56 KMTR 241104
SVRMTR
CAC001-085-241130-
/O.NEW.KMTR.SV.W.0017.251224T1104Z-251224T1130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
304 AM PST WED DEC 24 2025
THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN ALAMEDA COUNTY IN NORTHERN CALIFORNIA...
NORTHWESTERN SANTA CLARA COUNTY IN NORTHERN CALIFORNIA...
* UNTIL 330 AM PST.
* AT 304 AM PST, SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE FROM
5 MILES SOUTHWEST OF SAN LORENZO TO 12 MILES WEST OF BOULDER CREEK,
OR ALONG A LINE FROM 5 MILES SOUTHWEST OF SAN LORENZO TO 17 MILES
WEST OF SARATOGA, MOVING NORTHEAST AT 20 MPH.
HAZARD...60 MPH WIND GUSTS AND SMALL HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS, SIDING, AND TREES.
* LOCATIONS IMPACTED INCLUDE...
SAN JOSE, FREMONT, HAYWARD, SUNNYVALE, SANTA CLARA, SAN LEANDRO,
MOUNTAIN VIEW, UNION CITY, MILPITAS, PALO ALTO, CUPERTINO, NEWARK,
CAMPBELL, SARATOGA, LOS ALTOS, SAN LORENZO, CASTRO VALLEY, LOS
ALTOS HILLS, RANCHO RINCONADA CDP AND FRUITDALE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE AND STAY AWAY FROM
WINDOWS. THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS.
TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. SEEK SHELTER
IMMEDIATELY IN AN INTERIOR ROOM ON THE LOWEST FLOOR OF A WELL-BUILT
STRUCTURE.
WIND DAMAGE WITH THESE STORMS WILL OCCUR BEFORE ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 3771 12209 3762 12198 3750 12192 3730 12191
3727 12212 3746 12212 3746 12198 3747 12196
3747 12205 3748 12203 3749 12205 3749 12204
3751 12208 3750 12211 3768 12217
TIME...MOT...LOC 1104Z 211DEG 18KT 3760 12217 3740 12213 3719 12233
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
KENNEDY
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