Alert archive / Iowa / River Flood Warnings in 2019

River Flood Warning 199, NWS Sioux Falls, SD

May 28, 2019Plymouth County, Sioux County, Iowa

NWS Sioux Falls, SD issued this river flood warning at May 28, 2019, 7:45 AM CDT for Plymouth County, Sioux County, Iowa. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: May 28, 2019, 7:45 AM CDT (12:45 UTC)
Expired: May 28, 2019, 2:00 PM CDT
In force: 6 hr
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Plymouth County, IA, Sioux County, IA

The radar

The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 12:44 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 Floyd River near Struble (STUI4).

Action stage: 12 ft
Minor stage: 14 ft
Moderate stage: 15 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06600300, 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 28, 6:53 AM CDT, 52 minutes earlier.

Area forecast discussion, May 28, 6:53 AM CDT, 52 minutes before

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Hazardous weather outlook, May 28, 5:09 AM CDT, 2 hours 36 minutes before

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
509 AM CDT Tue May 28 2019

IAZ001>003-012>014-020>022-031-032-MNZ089-090-NEZ013-014-SDZ070-071-
291015-
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Nobles-Jackson-Dixon-Dakota-Union-
509 AM CDT Tue May 28 2019

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

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected to redevelop late this
afternoon or evening and continue through tonight. A few storms could
become severe this evening with winds to 60 mph and hail to the size
of half dollars. Any heavier storms could produce heavy rainfall, and
may cause continued issues with flooding and ponding of water.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

MNZ071-072-080-081-097-098-SDZ038>040-050-052>069-291015-
Lincoln-Lyon-Murray-Cottonwood-Pipestone-Rock-Beadle-Kingsbury-
Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-
Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-
Turner-Bon Homme-Yankton-
509 AM CDT Tue May 28 2019

This Hazardous Weather Outlook is for southwest Minnesota, central
South Dakota, east central South Dakota, south central South Dakota
and southeast South Dakota.

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected to redevelop late this
afternoon or evening and continue through tonight. Any storms are not
expected to be severe. Moderate to heavy rain will be possible
tonight into early on Wednesday, and may cause continued issues with
flooding and ponding of water.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.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
May 27, 9:00 PM CDT	River Flood Warning	FSD	Minnehaha	21 days
May 28, 12:26 AM CDT	River Flood Warning	FSD	Lincoln, Minnehaha	21 days
May 28, 3:36 AM CDT	River Flood Warning	FSD	Moody	21 days
May 28, 12:31 PM CDT	River Flood Warning	FSD	Minnehaha	21 days
May 28, 1:57 PM CDT	River Flood Warning	FSD	Union	21 days
May 27, 9:00 PM CDT	River Flood Warning	FSD	Sioux	58 hr
May 28, 12:31 PM CDT	River Flood Warning	FSD	Clay, O'Brien	21 days
May 27, 11:20 PM CDT	River Flood Warning	FSD	Cottonwood, Jackson	8 days
May 28, 3:36 AM CDT	River Flood Warning	FSD	Lyon	21 days
May 28, 3:38 AM CDT	River Flood Warning	FSD	Murray	21 days

Nearby

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.