Headline:
Flood Advisory issued November 20 at 12:32PM PST until November 20 at 6:30PM PST by NWS San Francisco CA
Event:
Flood Advisory
Urgency:
Expected
Effective:
November 20, 2024 - 12:32pm
Expires:
November 20, 2024 - 6:30pm
Description:
* WHAT...Small stream flooding caused by excessive rainfall is
expected.
* WHERE...Areas near Calistoga and St. Helena in northern Sonoma and
Napa counties.
* WHEN...Until 630 PM PST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas as
well as rises in small streams and creeks.
* ADDITIONAL DETAILS...
- At 1229 PM PST, Doppler radar and automated rain gauges
indicated heavy rain. This will cause small stream flooding.
Between 0.5 and 2 inches of rain have fallen.
- Additional rainfall amounts of 1 to 2 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
St. Helena, Calistoga, Angwin and Deer Park.
- http://www.weather.gov/safety/flood
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Unpaved roads may become muddy and impassable. Find an
alternate route!
Area Description:
Napa, CA; Sonoma, CA
Forcast Office:
NWS San Francisco CA