Alert archive / South Dakota / River Flood Warnings in 2025

River Flood Warning 3, NWS Sioux Falls, SD

June 29, 2025Brookings County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Jun 29, 2025, 7:58 AM CDT for Brookings County, South Dakota. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Jun 29, 2025, 7:58 AM CDT (12:58 UTC)
Expired: Jul 20, 2025, 7:58 AM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Brookings County, SD

The radar

The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 12:59 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 Bruce (BRCS2). The gauge peaked at 10.49 ft at Jul 1, 2025, 10:00 PM CDT.

Action stage: 7 ft
Minor stage: 8 ft
Moderate stage: 10 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06479770, 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 Jun 28, 3:19 PM CDT, 16 hours 39 minutes earlier.

Area forecast discussion, Jun 28, 3:19 PM CDT, 16 hours 39 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 10:30 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	60 min
Jun 28, 10:33 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	42 min
Jun 28, 10:53 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	37 min
Jun 28, 11:26 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Moody	49 min
Jun 28, 11:31 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner	44 min
Jun 29, 12:14 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Brookings, Lake, Moody	46 min
Jun 29, 12:50 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, Miner	25 min
Jun 29, 1:23 AM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson, Turner, Yankton	52 min
Jun 29, 1:57 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Turner, Yankton	33 min
Jun 29, 2:09 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Yankton	36 min
Jun 29, 2:42 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Union, Yankton	34 min
Jun 29, 6:07 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld	23 min
Jun 29, 6:17 AM CDT	River Flood Warning	FSD	Brookings, Hamlin	6 days
Jun 29, 6:29 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld, Sanborn	31 min
Jun 29, 9:30 AM CDT	River Flood Warning	FSD	Brookings, Moody	11 days
Jun 29, 10:20 AM CDT	River Flood Warning	FSD	Brookings	60 hr
Jun 29, 3:38 AM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Plymouth, Sioux	37 min
Jun 29, 4:02 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Ida, Plymouth, Woodbury	43 min
Jun 29, 4:06 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux	39 min
Jun 29, 4:42 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	48 min

Nearby

River Flood Warnings in South Dakota, 2025 Every river flood warning in 2025

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.