Headline:
Flood Advisory issued November 21 at 5:01PM PST until November 23 at 3:15AM PST by NWS San Francisco CA
Event:
Flood Advisory
Urgency:
Expected
Effective:
November 21, 2024 - 5:01pm
Expires:
November 23, 2024 - 3:15am
Description:
* WHAT...Urban area and small stream flooding caused by excessive
rainfall continues.
* WHERE...All of Marin, Sonoma, and Napa Counties.
* WHEN...Until 315 AM PST Saturday.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways. Overflowing poor drainage areas.
* ADDITIONAL DETAILS...
- At 500 PM PST, Doppler radar and automated rain gauges
indicated heavy rain. This is causing urban and small stream
flooding. Between 4 and 17 inches of rain have fallen.
- Additional rainfall amounts of 1 to 4.5 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Santa Rosa, Napa, Petaluma, San Rafael, Novato, Rohnert Park,
Windsor, American Canyon, Mill Valley, San Anselmo, Larkspur,
Healdsburg, Sonoma, Corte Madera, Tiburon, Cloverdale,
Fairfax, Sebastopol, Cotati and Sausalito.
- http://www.weather.gov/safety/flood
Instruction:
Turn around, don't 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.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Area Description:
Marin, CA; Napa, CA; Sonoma, CA
Forcast Office:
NWS San Francisco CA