Alert archive / South Dakota / River Flood Warnings in 2023

River Flood Warning 40, NWS Sioux Falls, SD

August 6, 2023Beadle County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Aug 6, 2023, 5:54 AM CDT for Beadle County, South Dakota. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Aug 6, 2023, 5:54 AM CDT (10:54 UTC)
Expired: Aug 27, 2023, 8:48 AM CDT
In force: 21 days
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 10:54 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).

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 6, 3:10 AM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Aug 6, 3:10 AM CDT, 2 hours 44 minutes before

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Hazardous weather outlook, Aug 6, 4:31 AM CDT, 1 hour 23 minutes before

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
431 AM CDT Sun Aug 6 2023

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-070945-
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-
McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-
Yankton-Union-
431 AM CDT Sun Aug 6 2023

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, southwest Minnesota, northeast Nebraska,
central South Dakota, east central South Dakota, south central
South Dakota, and southeast South Dakota.

.DAY ONE...Today and Tonight

Scattered showers and isolated thunderstorms will continue through
much of Sunday. Slow moving rain may lead to ponding of water and
minor flooding, especially in urban areas, or in areas that
received significant rain Saturday.

Patchy fog may be possible Monday morning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional risks for rain arrive by Wednesday, however the risk
for severe storms is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed, however rainfall reports or
reports of flooding are encouraged.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 5, 8:05 PM CDT	Flash Flood Warning	FSD	Kingsbury	3 hr
Aug 5, 7:23 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	52 min
Aug 5, 7:27 PM CDT	Areal Flood Warning	FSD	Sioux	3 hr

Nearby

River Flood Warnings in South Dakota, 2023 Every river flood warning in 2023

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.