Alert archive / Washington / River Flood Warnings in 2011
River Flood Warning 58, NWS Seattle, WA
NWS Seattle, WA issued this river flood warning at Nov 23, 2011, 9:44 AM PST for Snohomish County, Washington. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 23, 2011, 9:44 AM PST (17:44 UTC)
- Expired
- Nov 23, 2011, 3:48 PM PST
- In force
- 6 hr
- Issued by
- NWS Seattle, WA
- Flood severity
- Moderate
County Snohomish County, WA
The radar
The Seattle radar (KATX), 60 km from the middle of the area, began a volume at 17:45 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 North Fork Stillaguamish River near Arlington (ARGW1).
- Action stage
- 10.7 ft
- Minor stage
- 13 ft
- Moderate stage
- 14 ft
- Major stage
- 15 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12167000, 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 |
|---|---|---|---|---|
| Nov 22, 4:50 PM PST | High Wind Warning | SEW | 11 hr | |
| Nov 22, 8:59 PM PST | Small Craft Advisory | SEW | 24 hr | |
| Nov 23, 2:24 AM PST | Small Craft Advisory for Hazardous Seas | SEW | 24 hr | |
| Nov 23, 2:35 AM PST | Areal Flood Advisory | SEW | Grays Harbor, King, Kitsap, Lewis, Mason, Pierce and 2 more | 12 hr |
| Nov 23, 3:18 AM PST | Winter Storm Watch | SEW | 9 hr | |
| Nov 23, 6:08 AM PST | River Flood Warning | SEW | Snohomish | 15 hr |
| Nov 23, 8:44 AM PST | Storm Warning | SEW | 36 hr | |
| Nov 23, 9:38 AM PST | River Flood Warning | SEW | Thurston | 6 hr |
| Nov 23, 9:44 AM PST | River Flood Warning | SEW | Whatcom | 6 hr |
| Nov 23, 9:44 AM PST | River Flood Warning | SEW | Grays Harbor | 36 hr |
| Nov 23, 12:37 PM PST | Winter Storm Warning | SEW | 45 hr | |
| Nov 23, 12:37 PM PST | Winter Weather Advisory | SEW | 45 hr | |
| Nov 23, 12:51 PM PST | Wind Advisory | SEW | San Juan | 20 hr |
| Nov 23, 2:43 PM PST | Gale Warning | SEW | 30 hr | |
| Nov 23, 2:43 PM PST | Small Craft Advisory | SEW | 12 hr |
Nearby
River Flood Warnings in Washington, 2011Every river flood warning in 2011
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.