Trinity County, CA Weather Alerts
Every National Weather Service alert issued for Trinity County, California, pushed to your phone within moments — county code CAC105, forecast zone 3 zones (CAZ116, CAZ108, CAZ117). Free with StormCast.
Download on Google PlayHow the NWS identifies Trinity County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches CAC105 directly rather than matching on place names, which is why an alert arrives whether you are in Big Bar or anywhere else in the county.
NWS County Code
CAC105
Forecast Zones
3 zones (CAZ116, CAZ108, CAZ117)
Forecast Office
Eureka (EKA)
Radar Station
KBHX
Towns covered in Trinity County
An NWS alert for Trinity County applies to all 12 of these communities. You do not need a separate alert for each one.
River gauges in and around Trinity County
StormCast tracks 11 gauges near Trinity County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- Trinity River near Helena 1SSE
- N. Fork Trinity River near Helena
- Trinity River at Junction City
- Trinity River at Douglas City
- Indian Creek (CA) near Douglas City
- Trinity River near Burnt Ranch
- South Fork Trinity River near Hyampom
- Grass Valley Creek near Lewiston
- Rush Creek (CA) near Lewiston
- Trinity River near Lewiston
- Mad River above Ruth Reservoir
Current conditions
Loading current conditions…
Alert types issued for Trinity 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 →Trinity County weather alert questions
Which NWS forecast zone is Trinity County in?
Trinity County, California is NWS county code CAC105 and spans 3 forecast zones (CAZ116, CAZ108, CAZ117). Alerts for it are issued by the Eureka (EKA) Weather Forecast Office, and the nearest NEXRAD radar is KBHX.
Which towns in Trinity County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Trinity County covers every community inside it, including Big Bar, Burnt Ranch, Douglas City, Hayfork, Hyampom, Junction City, Lewiston, Mad River, Salyer, Trinity Center, Weaverville and Zenia.
Are there river gauges in Trinity County?
Yes — StormCast monitors 11 river gauges in and around Trinity County, including Trinity River near Helena 1SSE, N. Fork Trinity River near Helena, Trinity River at Junction City. 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 Trinity County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for CAC105, the push notification goes out within moments — even with your screen off.