Alert archive / Iowa / River Flood Warnings in 2023
River Flood Warning 6, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at Apr 3, 2023, 8:35 PM CDT for Clay County, Iowa. It took effect at Apr 4, 2023, 1:00 AM CDT. It was in force for 66 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2023, 8:35 PM CDT (01:35 UTC)
- In effect from
- Apr 4, 2023, 1:00 AM CDT
- Expired
- Apr 6, 2023, 7:00 PM CDT
- In force
- 66 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Clay County, IA
The radar
The Sioux Falls radar (KFSD), 139 km from the middle of the area, began a volume at 01:39 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 Little Sioux River at Spencer (SPWI4).
- Action stage
- 9 ft
- Minor stage
- 10 ft
- Moderate stage
- 14 ft
- Major stage
- 16 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 Apr 3, 5:44 PM CDT, 2 hours 51 minutes earlier.
Area forecast discussion, Apr 3, 5:44 PM CDT, 2 hours 51 minutes before
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</html>Hazardous weather outlook, Apr 3, 7:23 PM CDT, 1 hour 12 minutes before
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River Flood Warnings in Iowa, 2023Every river flood warning in 2023
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.