Sonoma County, CA Weather Alerts
Every National Weather Service alert issued for Sonoma County, California, pushed to your phone within moments — county code CAC097, forecast zone 3 zones (CAZ506, CAZ505, CAZ503). Free with StormCast.
Download on Google PlayHow the NWS identifies Sonoma County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches CAC097 directly rather than matching on place names, which is why an alert arrives whether you are in Annapolis or anywhere else in the county.
NWS County Code
CAC097
Forecast Zones
3 zones (CAZ506, CAZ505, CAZ503)
Forecast Office
Monterey (MTR)
Radar Station
KDAX
Towns covered in Sonoma County
An NWS alert for Sonoma County applies to all 35 of these communities. You do not need a separate alert for each one.
River gauges in and around Sonoma County
StormCast tracks 12 gauges near Sonoma County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- Green Valley Creek at Green Valley
- Green Valley Creek at Martinelli Road
- Laguna de Santa Rosa near Sebastopol
- Mark West Creek near Mirabel Heights
- Santa Rosa Creek at Willowside Road NR Santa Rosa
- Russian River at Mirabel
- Russian River near Windsor
- Russian River near Guerneville
- Dutch Bill Creek at Bohemian Highway and Tyrone Road
- Piner Creek at Hopper Ave
- Colgan Creek near Sebastopol
- Colgan Creek near Santa Rosa
Current conditions
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Alert types issued for Sonoma County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →Sonoma County weather alert questions
Which NWS forecast zone is Sonoma County in?
Sonoma County, California is NWS county code CAC097 and spans 3 forecast zones (CAZ506, CAZ505, CAZ503). Alerts for it are issued by the Monterey (MTR) Weather Forecast Office, and the nearest NEXRAD radar is KDAX.
Which towns in Sonoma County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Sonoma County covers every community inside it, including Annapolis, Bodega, Bodega Bay, Boyes Hot Springs, Camp Meeker, Cazadero, Cloverdale, Cotati, Duncans Mills, El Verano, Eldridge, Forestville, Fulton, Geyserville, Glen Ellen, Graton, Guerneville, Healdsburg, Jenner, Kenwood, Monte Rio, Occidental, Penngrove, Petaluma, Rio Nido, Rohnert Park, Santa Rosa, Sebastopol, Sonoma, Stewarts Point, The Sea Ranch, Valley Ford, Villa Grande, Vineburg and Windsor.
Are there river gauges in Sonoma County?
Yes — StormCast monitors 12 river gauges in and around Sonoma County, including Green Valley Creek at Green Valley, Green Valley Creek at Martinelli Road, Laguna de Santa Rosa near Sebastopol. You can set a flood-stage alert on any of them and get a push notification when the water rises.
How fast are alerts for Sonoma County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for CAC097, the push notification goes out within moments — even with your screen off.