Alert archive / Washington / River Flood Warnings in 2018
River Flood Warning 14, NWS Seattle, WA
NWS Seattle, WA issued this river flood warning at Feb 4, 2018, 9:33 PM PST for Snohomish County, Washington. It took effect at Feb 5, 2018, 3:53 AM PST. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Feb 4, 2018, 9:33 PM PST (05:33 UTC)
- In effect from
- Feb 5, 2018, 3:53 AM PST
- Expired
- Feb 6, 2018, 1:05 PM PST
- In force
- 33 hr
- Issued by
- NWS Seattle, WA
- Area
- Storm-based polygon
- Flood severity
- Minor
County Snohomish County, WA
The radar
The Seattle radar (KATX), 60 km from the middle of the area, began a volume at 05:37 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 Snohomish River near Monroe (MROW1).
- Action stage
- 10 ft
- Minor stage
- 15 ft
- Moderate stage
- 16 ft
- Major stage
- 17 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12150800, 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 |
|---|---|---|---|---|
| Feb 4, 4:28 PM PST | River Flood Warning | SEW | Whatcom | 20 hr |
| Feb 4, 8:51 PM PST | River Flood Warning | SEW | Snohomish | 65 hr |
| Feb 5, 2:03 AM PST | Small Craft Advisory | SEW | 7 hr |
Nearby
River Flood Warnings in Washington, 2018Every river flood warning in 2018
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.