Alert archive / Nebraska / Flash Flood Warnings in 2026

Flash Flood Warning 25, NWS Omaha, NE

July 3, 2026Cedar County, Knox County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jul 3, 2026, 12:11 AM CDT for Cedar County, Knox 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
Jul 3, 2026, 12:11 AM CDT (05:11 UTC)
Expired
Jul 3, 2026, 3:15 AM CDT
In force
3 hr
Issued by
NWS Omaha, NE
Area
Storm-based polygon
Flood severity
None

Counties Cedar County, NE, Knox County, NE

The radar

The Sioux Falls radar (KFSD), 128 km from the middle of the area, began a volume at 05:11 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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.2 hours before the alert went out and 175 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2026-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3086 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2026-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3086 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1340 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 11:12 PM CDTSevere Thunderstorm WarningOAXCedar31 min
Jul 2, 11:40 PM CDTFlood WatchOAXAntelope, Burt, Cedar, Cuming, Knox, Madison and 4 more5 hr
Jul 2, 11:49 PM CDTSevere Thunderstorm WarningOAXKnox41 min
Jul 2, 11:58 PM CDTSevere Thunderstorm WarningOAXKnox47 min
Jul 3, 12:09 AM CDTSevere Thunderstorm WarningOAXAntelope, Knox21 min
Jul 3, 12:11 AM CDTSevere Thunderstorm WarningOAXCedar19 min
Jul 3, 12:24 AM CDTSevere Thunderstorm WarningOAXKnox39 min
Jul 3, 12:49 AM CDTFlash Flood WarningOAXCedar3 hr
Jul 3, 3:10 AM CDTAreal Flood AdvisoryOAXCedar, Knox6 hr
Jul 3, 3:37 AM CDTAreal Flood AdvisoryOAXCedar6 hr
Jul 3, 4:29 PM CDTSpecial Weather StatementOAXDouglas, Sarpy, Saunders46 min
Jul 3, 4:31 PM CDTSevere Thunderstorm WarningOAXDouglas, Saunders16 min

Nearby

Flash Flood Warnings in Nebraska, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.