Alert archive / Washington / River Flood Warnings in 2026
River Flood Warning 33, NWS Seattle, WA
NWS Seattle, WA issued this river flood warning at Mar 20, 2026, 4:16 PM PDT for Whatcom County, Washington. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Mar 20, 2026, 4:16 PM PDT (23:16 UTC)
- Expired
- Mar 20, 2026, 10:34 PM PDT
- In force
- 6 hr
- Issued by
- NWS Seattle, WA
- Area
- Storm-based polygon
- Flood severity
- Minor
County Whatcom County, WA
The radar
The Seattle radar (KATX), 84 km from the middle of the area, began a volume at 23:14 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Nooksack River at North Cedarvillle (NRKW1). The gauge peaked at 146.56 ft at Mar 20, 2026, 3:00 PM PDT.
- Action stage
- 144.8 ft
- Minor stage
- 146.5 ft
- Moderate stage
- 148 ft
- Major stage
- 150 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12210700, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 5:30 PM PDT | River Flood Warning | SEW | Snohomish | 64 hr |
| Mar 19, 8:11 PM PDT | River Flood Warning | SEW | Snohomish | 37 hr |
| Mar 20, 1:53 AM PDT | Gale Warning | SEW | 23 hr | |
| Mar 20, 2:09 AM PDT | River Flood Warning | SEW | King | 31 hr |
| Mar 20, 2:51 AM PDT | River Flood Warning | SEW | King | 23 hr |
| Mar 20, 6:32 AM PDT | River Flood Warning | SEW | Snohomish | 15 hr |
| Mar 20, 6:34 AM PDT | River Flood Warning | SEW | Snohomish | 22 hr |
| Mar 20, 9:20 AM PDT | River Flood Warning | SEW | Skagit | 45 hr |
| Mar 20, 9:28 AM PDT | River Flood Warning | SEW | Skagit | 16 hr |
| Mar 20, 10:05 AM PDT | River Flood Warning | SEW | Mason | 15 hr |
| Mar 20, 1:20 PM PDT | River Flood Warning | SEW | Snohomish | 8 hr |
| Mar 20, 1:23 PM PDT | River Flood Warning | SEW | Whatcom | 34 hr |
| Mar 20, 4:31 PM PDT | River Flood Warning | SEW | King | 58 hr |
Nearby
River Flood Warnings in Washington, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.