Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 110, NWS Sioux Falls, SD

April 5, 2019Bon Homme County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Apr 5, 2019, 10:38 AM CDT for Bon Homme County, South Dakota. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Apr 5, 2019, 10:38 AM CDT (15:38 UTC)
Expired: Apr 26, 2019, 10:38 AM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Bon Homme County, SD

The radar

The Sioux Falls radar (KFSD), 115 km from the middle of the area, began a volume at 15:42 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 Missouri River at Springfield (SPGS2). The gauge peaked at 11.00 ft at Apr 18, 2019, 6:00 AM CDT.

Action stage: 9.4 ft
Minor stage: 11 ft
Moderate stage: 13 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06466700, 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 5, 6:37 AM CDT, 4 hours 1 minute earlier.

Area forecast discussion, Apr 5, 6:37 AM CDT, 4 hours 1 minute before

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Hazardous weather outlook, Apr 5, 4:19 AM CDT, 6 hours 19 minutes before

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
419 AM CDT Fri Apr 5 2019

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-060930-
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-
McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-
Yankton-Union-
419 AM CDT Fri Apr 5 2019

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

.DAY ONE...Today and Tonight

Widespread fog, dense at times, will persist through mid morning.

Showers and isolated thunderstorms are expected to develop
across the area tonight. Strong storms are not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Showers and isolated thunderstorms are expected to redevelop on
Saturday night. Any storms are not expected to be strong.

A significant weather system could bring rain and snow to the
region by the middle of next week. Confidence remains low on
details with the system. Continue to monitor the forecast as this
time frame approaches.

.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
Apr 4, 10:24 PM CDT	Dense Fog Advisory	FSD	Beadle, Bon Homme, Brookings, Clay, Davison, Hanson and 12 more	12 hr

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.