Alert archive / South Dakota / River Flood Warnings in 2023

River Flood Warning 26, NWS Sioux Falls, SD

April 11, 2023Lincoln County, Minnehaha County, South Dakota; Lyon County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Apr 11, 2023, 3:15 AM CDT for Lincoln County, Minnehaha County, South Dakota; Lyon County, Iowa. It was in force for 8 days.

The area

The counties it named.

The facts

Issued
Apr 11, 2023, 3:15 AM CDT (08:15 UTC)
Expired
Apr 19, 2023, 10:13 AM CDT
In force
8 days
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Flood severity
Minor

Counties Lyon County, IA, Lincoln County, SD, Minnehaha County, SD

The radar

The Sioux Falls radar (KFSD), 20 km from the middle of the area, began a volume at 08:17 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 Brandon (BBSS2).

Action stage
1302 ft
Minor stage
1304 ft
Moderate stage
1309 ft
Major stage
1312 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 12:57 AM CDTRiver Flood WarningFSDMinnehaha12 days
Apr 11, 1:00 AM CDTRiver Flood WarningFSDBrookings21 days
Apr 11, 3:15 AM CDTRiver Flood WarningFSDBrookings, Hamlin14 days
Apr 11, 4:19 PM CDTFire Weather WatchFSDBon Homme, Hutchinson, Lincoln, Turner, Yankton11 hr
Apr 11, 4:19 PM CDTRed Flag WarningFSDClay, Lincoln, Union, Yankton28 hr

Nearby

River Flood Warnings in South Dakota, 2023River Flood Warnings in Iowa, 2023Every 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.