Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 166, NWS Sioux Falls, SD

May 9, 2019Moody County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at May 9, 2019, 9:43 AM CDT for Moody County, South Dakota. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: May 9, 2019, 9:43 AM CDT (14:43 UTC)
Expired: May 30, 2019, 9:43 AM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Moody County, SD

The radar

The Sioux Falls radar (KFSD), 49 km from the middle of the area, began a volume at 14:47 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 above Flandreau (BSFS2).

Action stage: 1537 ft
Minor stage: 1540 ft
Moderate stage: 1542 ft
Major stage: 1545 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 May 8, 3:03 PM CDT, 18 hours 40 minutes earlier.

Area forecast discussion, May 8, 3:03 PM CDT, 18 hours 40 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
May 9, 3:38 AM CDT	Frost Advisory	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	28 hr
May 9, 9:43 AM CDT	River Flood Warning	FSD	Turner	4 days
May 9, 9:43 AM CDT	River Flood Warning	FSD	Clay	7 days

Nearby

River Flood Warnings in South Dakota, 2019 Every river flood warning in 2019

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.