* 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 1041 AM PST, Doppler radar and automated rain gauges
indicated heavy rain. This is causing urban and small stream
flooding. Between 3 and 13 inches of rain have fallen.
– Many creeks and streams are currently flooding with roads
closed in western Sonoma County. Additional rainfall amounts
of 1.5 to 5.5 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
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK…
No watches are valid as of Mon Apr 21 12:35:01 UTC 2025.
No Mesoscale Discussions are in effect as of Mon Apr 21 12:35:01 UTC 2025.
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0307 AM…
* AFFECTED AREA...Fire Weather Zones 242, 244, 246, 247, 248, 249, 250 and 251. *…
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Trinity County. *…
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