Alert archive / South Dakota / River Flood Warnings in 2009

River Flood Warning 10, NWS Sioux Falls, SD

March 20, 2009Davison County, Hanson County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Mar 20, 2009, 9:28 AM CDT for Davison County, Hanson County, South Dakota. It took effect at Mar 24, 2009, 3:00 AM CDT. It was in force for 146 days.

The area

The counties it named.

The facts

Issued
Mar 20, 2009, 9:28 AM CDT (14:28 UTC)
In effect from
Mar 24, 2009, 3:00 AM CDT
Expired
Aug 17, 2009, 9:17 AM CDT
In force
146 days
Issued by
NWS Sioux Falls, SD
Flood severity
Minor

Counties Davison County, SD, Hanson County, SD

The radar

The Sioux Falls radar (KFSD), 100 km from the middle of the area, began a volume at 14:31 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 Mitchell (JRMS2).

Action stage
16 ft
Minor stage
17 ft
Moderate stage
21.5 ft
Major stage
24 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06478000, 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.

IssuedProductOfficeCountiesLasted
Mar 20, 9:28 AM CDTRiver Flood WarningFSDSanborn141 days

Nearby

River Flood Warnings in South Dakota, 2009Every river flood warning in 2009

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.