508 
WGUS56 KMTR 251101
FFWMTR
CAC001-013-251400-
/O.NEW.KMTR.FF.W.0007.251225T1101Z-251225T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Francisco CA
301 AM PST Thu Dec 25 2025

The National Weather Service in San Francisco has issued a

* Flash Flood Warning for...
  Northwestern Alameda County in northern California...
  Western Contra Costa County in northern California...

* Until 600 AM PST.

* At 301 AM PST, Doppler radar indicated heavy rain across the warned
  area. Between 0.5 and 1 inch of rain has fallen. Flash flooding is
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Radar indicated.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Oakland, Concord, Berkeley, Richmond, Mountain View, Alameda, San
  Ramon, Walnut Creek, Danville, Martinez, Pleasant Hill, San Pablo,
  Lafayette, El Cerrito, Hercules, Albany, Pinole, Orinda, Moraga and
  Piedmont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3790 12233 3790 12232 3791 12239 3797 12243
      3795 12240 3801 12237 3801 12230 3805 12226
      3802 12215 3805 12209 3778 12195 3774 12221
      3779 12225 3780 12234 3781 12232 3782 12231
      3782 12233 3783 12230

FLASH FLOOD...RADAR INDICATED

$$

KR

014 
WGUS76 KMTR 251352
FFSMTR

Flash Flood Statement
National Weather Service San Francisco CA
552 AM PST Thu Dec 25 2025

CAC001-013-251402-
/O.CAN.KMTR.FF.W.0007.000000T0000Z-251225T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alameda CA-Contra Costa CA-
552 AM PST Thu Dec 25 2025

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN ALAMEDA AND
WESTERN CONTRA COSTA COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1000 PM PST Friday for portions
of central and northern California.

&&

LAT...LON 3790 12233 3790 12232 3791 12239 3797 12243
      3795 12240 3801 12237 3801 12230 3805 12226
      3802 12215 3805 12209 3778 12195 3774 12221
      3779 12225 3780 12234 3781 12232 3782 12231
      3782 12233 3783 12230

$$

KR