Alert archive / Washington / River Flood Warnings in 2020
River Flood Warning 23, NWS Seattle, WA
NWS Seattle, WA issued this river flood warning at Jan 31, 2020, 9:02 AM PST for King County, Washington. It took effect at Jan 31, 2020, 12:33 PM PST. It was in force for 46 hr.
The area
The counties it named.
The facts
- Issued
- Jan 31, 2020, 9:02 AM PST (17:02 UTC)
- In effect from
- Jan 31, 2020, 12:33 PM PST
- Expired
- Feb 2, 2020, 10:03 AM PST
- In force
- 46 hr
- Issued by
- NWS Seattle, WA
- Area
- Storm-based polygon
- Flood severity
- Major
County King County, WA
The radar
The Seattle radar (KATX), 92 km from the middle of the area, began a volume at 17:00 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 Tolt River near Carnation (TOLW1).
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12148500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Seattle, WA wrote its last area forecast discussion before this river flood warning went out at Jan 31, 3:04 AM PST, 5 hours 58 minutes earlier.
Area forecast discussion, Jan 31, 3:04 AM PST, 5 hours 58 minutes before
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</html>The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 31, 2:08 AM PST | High Wind Warning | SEW | San Juan | 25 hr |
| Jan 31, 2:08 AM PST | Wind Advisory | SEW | San Juan | 32 hr |
| Jan 31, 2:42 AM PST | Gale Warning | SEW | 42 hr | |
| Jan 31, 3:34 PM PST | River Flood Warning | SEW | Snohomish | 34 hr |
| Jan 31, 3:35 PM PST | River Flood Warning | SEW | King | 38 hr |
| Jan 31, 3:35 PM PST | River Flood Warning | SEW | King | 61 hr |
Nearby
River Flood Warnings in Washington, 2020Every river flood warning in 2020
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.