Alert archive / South Dakota / River Flood Warnings in 2018

River Flood Warning 82, NWS Sioux Falls, SD

April 26, 2018Brookings County, Hamlin County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Apr 26, 2018, 8:36 AM CDT for Brookings County, Hamlin County, South Dakota. It was in force for 8 days.

The area

The counties it named.

The facts

Issued: Apr 26, 2018, 8:36 AM CDT (13:36 UTC)
Expired: May 3, 2018, 9:42 PM CDT
In force: 8 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Brookings County, SD, Hamlin County, SD

The radar

The Sioux Falls radar (KFSD), 106 km from the middle of the area, began a volume at 13:36 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 Estelline (BSES2).

Action stage: 1642.5 ft
Minor stage: 1644 ft
Moderate stage: 1645.5 ft
Major stage: 1648 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.

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 Apr 25, 6:55 PM CDT, 13 hours 41 minutes earlier.

Area forecast discussion, Apr 25, 6:55 PM CDT, 13 hours 41 minutes before

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Nearby

River Flood Warnings in South Dakota, 2018 Every river flood warning in 2018

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.