Alert archive / South Dakota / River Flood Warnings in 2022

River Flood Warning 20, NWS Sioux Falls, SD

August 20, 2022Beadle County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Aug 20, 2022, 11:00 AM CDT for Beadle County, South Dakota. It was in force for 52 hr.

The area

The counties it named.

The facts

Issued: Aug 20, 2022, 11:00 AM CDT (16:00 UTC)
Expired: Aug 22, 2022, 2:40 PM CDT
In force: 52 hr
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Beadle County, SD

The radar

The Aberdeen radar (KABR), 116 km from the middle of the area, began a volume at 16:03 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 James River at Huron (HURS2). The gauge peaked at 11.05 ft at Aug 19, 2022, 8:00 PM CDT.

Action stage: 10.5 ft
Minor stage: 11.5 ft
Moderate stage: 15 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06476000, 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 Sioux Falls, SD wrote its last area forecast discussion before this river flood warning went out at Aug 19, 6:43 PM CDT, 16 hours 17 minutes earlier.

Area forecast discussion, Aug 19, 6:43 PM CDT, 16 hours 17 minutes before

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Nearby

River Flood Warnings in South Dakota, 2022 Every river flood warning in 2022

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.