Alert archive / Iowa / River Flood Warnings in 2019
River Flood Warning 255, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at Jul 15, 2019, 8:33 AM CDT for Union County, South Dakota; Plymouth County, Sioux County, Iowa. It was in force for 11 days.
The area
The counties it named.
The facts
- Issued
- Jul 15, 2019, 8:33 AM CDT (13:33 UTC)
- Expired
- Jul 26, 2019, 1:36 PM CDT
- In force
- 11 days
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Plymouth County, IA, Sioux County, IA, Union County, SD
The radar
The Sioux Falls radar (KFSD), 84 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 above Hawarden (HWDI4). The gauge peaked at 24.43 ft at Jul 19, 2019, 3:00 AM CDT.
- Action stage
- 18.5 ft
- Minor stage
- 20.5 ft
- Moderate stage
- 24 ft
- Major stage
- 30 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06483950, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 3:38 PM CDT | Excessive Heat Watch | FSD | Bon Homme, Charles Mix, Clay, Douglas, Gregory, Hutchinson and 4 more | 50 hr |
| Jul 15, 5:24 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Douglas | 27 min |
| Jul 15, 6:58 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 28 min |
Nearby
River Flood Warnings in Iowa, 2019River Flood Warnings in South Dakota, 2019Every 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.