Lewis County, WA Weather Alerts
Every National Weather Service alert issued for Lewis County, Washington, pushed to your phone within moments — county code WAC041, forecast zone 4 zones (WAZ318, WAZ309, WAZ320, WAZ304). Free with StormCast.
Download on Google PlayHow the NWS identifies Lewis County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches WAC041 directly rather than matching on place names, which is why an alert arrives whether you are in Adna or anywhere else in the county.
NWS County Code
WAC041
Forecast Zones
4 zones (WAZ318, WAZ309, WAZ320, WAZ304)
Forecast Office
Seattle (SEW)
Radar Station
KRTX
Towns covered in Lewis County
An NWS alert for Lewis County applies to all 22 of these communities. You do not need a separate alert for each one.
River gauges in and around Lewis County
StormCast tracks 12 gauges near Lewis County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- South Fork Newaukum River near Onalaska
- Cowlitz River below Mayfield Dam
- North Fork Newaukum River near Forest
- Tilton River near Cinebar
- Newaukum River near Chehalis
- Skookumchuck River near Vail
- Chehalis River at WWTP at Chehalis
- N Fk Toutle River below Sediment Retention Structure near Toutle
- Stearns Creek near Claquato
- Chehalis River near Adna
- South Fork Chehalis Rver near Wildwood
- South Fork Chehalis Rver near Curtis
Current conditions
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Alert types issued for Lewis 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 →Lewis County weather alert questions
Which NWS forecast zone is Lewis County in?
Lewis County, Washington is NWS county code WAC041 and spans 4 forecast zones (WAZ318, WAZ309, WAZ320, WAZ304). Alerts for it are issued by the Seattle (SEW) Weather Forecast Office, and the nearest NEXRAD radar is KRTX.
Which towns in Lewis County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Lewis County covers every community inside it, including Adna, Centralia, Chehalis, Cinebar, Curtis, Doty, Ethel, Galvin, Glenoma, Mineral, Morton, Mossyrock, Napavine, Onalaska, Packwood, Pe Ell, Randle, Salkum, Silver Creek, Toledo, Vader and Winlock.
Are there river gauges in Lewis County?
Yes — StormCast monitors 12 river gauges in and around Lewis County, including South Fork Newaukum River near Onalaska, Cowlitz River below Mayfield Dam, North Fork Newaukum River near Forest. 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 Lewis County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for WAC041, the push notification goes out within moments — even with your screen off.