Alert archive / South Dakota / River Flood Warnings in 2023
River Flood Warning 36, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at May 3, 2023, 9:19 AM CDT for Yankton County, South Dakota. It took effect at May 5, 2023, 7:00 AM CDT. It was in force for 19 days.
The area
The counties it named.
The facts
- Issued
- May 3, 2023, 9:19 AM CDT (14:19 UTC)
- In effect from
- May 5, 2023, 7:00 AM CDT
- Expired
- May 24, 2023, 9:19 AM CDT
- In force
- 19 days
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 84 km from the middle of the area, began a volume at 14:21 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 James River near Yankton (YNNS2). The gauge peaked at 11.65 ft at May 5, 2023, 4:00 AM CDT.
- Action stage
- 10 ft
- Minor stage
- 12 ft
- Moderate stage
- 16 ft
- Major stage
- 21 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06478513, 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 3, 6:03 AM CDT, 3 hours 16 minutes earlier.
Area forecast discussion, May 3, 6:03 AM CDT, 3 hours 16 minutes before
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</html>Hazardous weather outlook, May 3, 4:23 AM CDT, 4 hours 56 minutes before
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River Flood Warnings in South Dakota, 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.