Alert archive / Nebraska / Flash Flood Warnings in 2025

Flash Flood Warning 12, NWS Omaha, NE

August 4, 2025Knox County, Pierce County, Nebraska

NWS Omaha, NE issued this flash flood warning at Aug 4, 2025, 12:36 AM CDT for Knox County, Pierce County, Nebraska. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 4, 2025, 12:36 AM CDT (05:36 UTC)
Expired
Aug 4, 2025, 3:45 AM CDT
In force
3 hr
Issued by
NWS Omaha, NE
Area
Storm-based polygon
Flood severity
None

Counties Knox County, NE, Pierce County, NE

The radar

The Sioux Falls radar (KFSD), 151 km from the middle of the area, began a volume at 05:38 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 office that day

Everything else NWS Omaha, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 3, 11:56 PM CDTAreal Flood AdvisoryOAXKnox3 hr
Aug 4, 1:49 AM CDTAreal Flood AdvisoryOAXCedar, Knox3 hr
Aug 4, 3:59 AM CDTAreal Flood AdvisoryOAXKnox, Pierce10 hr

Nearby

Flash Flood Warnings in Nebraska, 2025Every flash flood warning in 2025

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.