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Severe Thunderstorm Warning 0023
Issued by the San Francisco Bay Area / Monterey Forecast Office

Action Issued Starts Expiration
New 2025-12-25 19:37:29 2025-12-25 19:37:00 2025-12-25 20:00:00
Cancelled 2025-12-25 19:55:29 2025-12-25 20:00:00
Expired 2025-12-25 19:55:29 2025-12-25 20:00:00


Action: New
Issued At: 2025-12-25 19:37:29

532 
WUUS56 KMTR 260137
SVRMTR
CAC041-075-260200-
/O.NEW.KMTR.SV.W.0023.251226T0137Z-251226T0200Z/

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

The National Weather Service in San Francisco has issued a

* Severe Thunderstorm Warning for...
  Southeastern Marin County in northern California...
  San Francisco County in northern California...

* Until 600 PM PST.

* At 537 PM PST, a severe thunderstorm was located 6 miles west of
  Daly City, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts and small hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Mill Valley, Larkspur, Corte Madera, Tiburon, Sausalito,
  Strawberry, Tamalpais-Homestead Valley, Tamalpais-Homestead, Muir
  Beach, Kentfield and Belvedere.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds.

Wind damage with this storm 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.

&&

LAT...LON 3786 12258 3795 12254 3794 12250 3792 12250
      3792 12247 3791 12248 3788 12244 3787 12246
      3786 12246 3789 12249 3789 12250 3788 12250
      3790 12252 3788 12252 3786 12248 3784 12247
      3783 12248 3782 12253
TIME...MOT...LOC 0137Z 209DEG 49KT 3771 12257

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JM


Action: Cancelled
Issued At: 2025-12-25 19:55:29

938 
WWUS56 KMTR 260154
SVSMTR

Severe Weather Statement
National Weather Service San Francisco CA
554 PM PST Thu Dec 25 2025

CAC075-260204-
/O.CAN.KMTR.SV.W.0023.000000T0000Z-251226T0200Z/
San Francisco CA-
554 PM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR ...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

&&

LAT...LON 3786 12258 3795 12254 3794 12250 3792 12250
      3792 12247 3791 12248 3788 12244 3787 12246
      3786 12246 3789 12249 3789 12250 3788 12250
      3790 12252 3788 12252 3786 12248 3784 12247
      3783 12248 3782 12253
TIME...MOT...LOC 0137Z 209DEG 49KT 3771 12257

$$


CAC041-260204-
/O.EXP.KMTR.SV.W.0023.000000T0000Z-251226T0200Z/
Marin CA-
554 PM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 6 PM PST FOR
SOUTHEASTERN MARIN COUNTY...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds and heavy rain are still possible with this thunderstorm.

&&

LAT...LON 3786 12258 3795 12254 3794 12250 3792 12250
      3792 12247 3791 12248 3788 12244 3787 12246
      3786 12246 3789 12249 3789 12250 3788 12250
      3790 12252 3788 12252 3786 12248 3784 12247
      3783 12248 3782 12253
TIME...MOT...LOC 0137Z 209DEG 49KT 3771 12257

$$

JM


Action: Expired
Issued At: 2025-12-25 19:55:29

938 
WWUS56 KMTR 260154
SVSMTR

Severe Weather Statement
National Weather Service San Francisco CA
554 PM PST Thu Dec 25 2025

CAC075-260204-
/O.CAN.KMTR.SV.W.0023.000000T0000Z-251226T0200Z/
San Francisco CA-
554 PM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR ...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

&&

LAT...LON 3786 12258 3795 12254 3794 12250 3792 12250
      3792 12247 3791 12248 3788 12244 3787 12246
      3786 12246 3789 12249 3789 12250 3788 12250
      3790 12252 3788 12252 3786 12248 3784 12247
      3783 12248 3782 12253
TIME...MOT...LOC 0137Z 209DEG 49KT 3771 12257

$$


CAC041-260204-
/O.EXP.KMTR.SV.W.0023.000000T0000Z-251226T0200Z/
Marin CA-
554 PM PST Thu Dec 25 2025

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 6 PM PST FOR
SOUTHEASTERN MARIN COUNTY...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds and heavy rain are still possible with this thunderstorm.

&&

LAT...LON 3786 12258 3795 12254 3794 12250 3792 12250
      3792 12247 3791 12248 3788 12244 3787 12246
      3786 12246 3789 12249 3789 12250 3788 12250
      3790 12252 3788 12252 3786 12248 3784 12247
      3783 12248 3782 12253
TIME...MOT...LOC 0137Z 209DEG 49KT 3771 12257

$$

JM



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