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Severe Thunderstorm Warning 0020
Issued by the San Francisco Bay Area / Monterey Forecast Office

Action Issued Starts Expiration
New 2025-12-25 04:20:05 2025-12-25 04:19:00 2025-12-25 04:45:00
Continued 2025-12-25 04:38:36 2025-12-25 04:45:00
Expired 2025-12-25 04:50:06 2025-12-25 04:45:00


Action: New
Issued At: 2025-12-25 04:20:05

444 
WUUS56 KMTR 251019
SVRMTR
CAC075-081-251045-
/O.NEW.KMTR.SV.W.0020.251225T1019Z-251225T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service San Francisco CA
219 AM PST Thu Dec 25 2025

The National Weather Service in San Francisco has issued a

* Severe Thunderstorm Warning for...
  San Francisco County in northern California...
  Northwestern San Mateo County in northern California...

* Until 245 AM PST.

* At 219 AM PST, a severe thunderstorm was located over Daly City,
  moving northeast at 60 mph.

  HAZARD...70 mph wind gusts and small hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  San Francisco, Daly City, South San Francisco, San Bruno, Pacifica,
  Brisbane, Colma and Broadmoor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

&&

LAT...LON 3779 12249 3781 12248 3781 12241 3779 12239
      3783 12237 3781 12237 3781 12236 3778 12239
      3776 12238 3775 12239 3772 12236 3772 12239
      3771 12238 3771 12239 3769 12239 3762 12243
      3761 12250 3778 12251
TIME...MOT...LOC 1019Z 206DEG 52KT 3771 12248

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Behringer


Action: Continued
Issued At: 2025-12-25 04:38:36

840 
WWUS56 KMTR 251038
SVSMTR

Severe Weather Statement
National Weather Service San Francisco CA
238 AM PST Thu Dec 25 2025

CAC075-081-251045-
/O.CON.KMTR.SV.W.0020.000000T0000Z-251225T1045Z/
San Francisco CA-San Mateo CA-
238 AM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM PST FOR
EASTERN SAN FRANCISCO AND NORTHWESTERN SAN MATEO COUNTIES...

At 238 AM PST, a line of severe thunderstorms was located over San
Francisco, moving northeast at 60 mph.

HAZARD...70 mph wind gusts and small hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile
         homes, roofs, and outbuildings.

Locations impacted include...
  San Francisco, Daly City, South San Francisco, San Bruno, Pacifica,
  Brisbane, Colma and Broadmoor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

&&

LAT...LON 3780 12245 3781 12241 3779 12239 3783 12237
      3781 12237 3781 12236 3778 12239 3776 12238
      3775 12239 3772 12236 3773 12238 3772 12239
      3771 12238 3771 12239 3769 12239 3762 12243
      3761 12250
TIME...MOT...LOC 1019Z 206DEG 52KT 3772 12248

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Behringer


Action: Expired
Issued At: 2025-12-25 04:50:06

167 
WWUS56 KMTR 251049
SVSMTR

Severe Weather Statement
National Weather Service San Francisco CA
249 AM PST Thu Dec 25 2025

CAC075-081-251059-
/O.EXP.KMTR.SV.W.0020.000000T0000Z-251225T1045Z/
San Francisco CA-San Mateo CA-
249 AM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR EASTERN SAN FRANCISCO
AND NORTHWESTERN SAN MATEO COUNTIES...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire. However, gusty winds and heavy rain are still
possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office.

&&

LAT...LON 3780 12245 3781 12241 3779 12239 3783 12237
      3781 12237 3781 12236 3778 12239 3776 12238
      3775 12239 3772 12236 3773 12238 3772 12239
      3771 12238 3771 12239 3769 12239 3762 12243
      3761 12250
TIME...MOT...LOC 1038Z 206DEG 52KT 3796 12233

$$

Behringer



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