Alert archive / South Dakota / River Flood Warnings in 2020
River Flood Warning 8, NWS Aberdeen, SD
NWS Aberdeen, SD issued this river flood warning at Mar 21, 2020, 8:53 AM CDT for Hamlin County, South Dakota. It was in force for 48 hr.
The area
The counties it named.
The facts
- Issued
- Mar 21, 2020, 8:53 AM CDT (13:53 UTC)
- Expired
- Mar 23, 2020, 8:29 AM CDT
- In force
- 48 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Hamlin County, SD
The radar
The Sioux Falls radar (KFSD), 126 km from the middle of the area, began a volume at 13:53 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 Big Sioux River near Castlewood (CSWS2). The gauge peaked at 9.60 ft at Mar 22, 2020, 9:00 PM CDT.
- Action stage
- 8 ft
- Minor stage
- 9 ft
- Moderate stage
- 11 ft
- Major stage
- 16 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06479525, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
Nearby
River Flood Warnings in South Dakota, 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.