Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 224, NWS Sioux Falls, SD

June 28, 2019Union County, South Dakota; Plymouth County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Jun 28, 2019, 4:50 AM CDT for Union County, South Dakota; Plymouth County, Iowa. It was in force for 31 days.

The area

The counties it named.

The facts

Issued: Jun 28, 2019, 4:50 AM CDT (09:50 UTC)
Expired: Jul 29, 2019, 12:07 AM CDT
In force: 31 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Plymouth County, IA, Union County, SD

The radar

The Sioux Falls radar (KFSD), 92 km from the middle of the area, began a volume at 09:46 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 Richland (BSRS2).

Action stage: 1116 ft
Minor stage: 1117 ft
Moderate stage: 1119 ft
Major stage: 1123 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 Jun 28, 3:50 AM CDT, 1 hour earlier.

Area forecast discussion, Jun 28, 3:50 AM CDT, 1 hour before

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Hazardous weather outlook, Jun 28, 4:14 AM CDT, 36 minutes before

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
414 AM CDT Fri Jun 28 2019

IAZ012-020-031-NEZ013-014-SDZ050-052-053-057>071-290915-
Sioux-Plymouth-Woodbury-Dixon-Dakota-Gregory-Jerauld-Sanborn-Brule-
Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-
Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Clay-Union-
414 AM CDT Fri Jun 28 2019

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

.DAY ONE...Today and tonight.

Hot temperatures and high dew points will result in afternoon and
early evening heat indices of 100 to 105 degrees across the area.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hot and muggy conditions will continue on Saturday and Sunday.
Afternoon and early evening heat indices will generally range from
105 to 110 degrees on Saturday, and 100 to 105 degrees possible on
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001>003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-098-
SDZ038>040-054>056-290915-
Lyon-Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Beadle-Kingsbury-
Brookings-Miner-Lake-Moody-
414 AM CDT Fri Jun 28 2019

This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa, southwest Minnesota and east central South Dakota.

.DAY ONE...Today and tonight.

Warm temperatures and high dew points will result in afternoon and
early evening heat indices of 95 to 100 degrees across the area.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hot and muggy conditions will continue on Saturday and Sunday.
Afternoon and early evening heat indices will generally range from
100 to 105 degrees on Saturday, and 95 to 100 degrees possible on
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 2:20 AM CDT	River Flood Warning	FSD	Brookings	41 days
Jun 28, 1:42 PM CDT	River Flood Warning	FSD	Minnehaha	14 hr
Jun 28, 1:42 PM CDT	River Flood Warning	FSD	Minnehaha	25 hr
Jun 28, 1:42 PM CDT	River Flood Warning	FSD	Clay	3 days
Jun 28, 2:02 PM CDT	Heat Advisory	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	31 hr

Nearby

River Flood Warnings in South Dakota, 2019 River Flood Warnings in Iowa, 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.