Alert archive / Nebraska / Flash Flood Warnings in 1996

Flash Flood Warning 21, NWS Omaha, NE

July 16, 1996Cedar County, Knox County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jul 16, 1996, 10:08 PM CDT for Cedar County, Knox County, Nebraska. It was in force for 52 min. 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 16, 1996, 10:08 PM CDT (03:08 UTC)
Expired
Jul 16, 1996, 11:00 PM CDT
In force
52 min
Issued by
NWS Omaha, NE
Area
Whole counties

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 03:08 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, 3.1 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 1996-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1921 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 1996-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.1939Sfc1 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
1921 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
979 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:12 PM CDTTornado WarningOAXButler48 min
Jul 16, 7:30 PM CDTSevere Thunderstorm WarningOAXColfax, Platte45 min
Jul 16, 7:36 PM CDTFlash Flood WarningOAXPlatte2 hr
Jul 16, 8:00 PM CDTTornado WarningOAXButler45 min
Jul 16, 8:13 PM CDTSevere Thunderstorm WarningOAXSaunders47 min
Jul 16, 8:32 PM CDTSevere Thunderstorm WarningOAXBurt, Thurston43 min
Jul 16, 8:55 PM CDTTornado WarningOAXSaunders50 min
Jul 16, 9:10 PM CDTSevere Thunderstorm WarningOAXCedar50 min
Jul 16, 9:45 PM CDTFlash Flood WarningOAXCedar, Knox3 hr
Jul 16, 10:08 PM CDTSevere Thunderstorm WarningOAXCedar, Knox52 min
Jul 16, 11:19 PM CDTFlash Flood WarningOAXCedar56 min
Jul 16, 11:19 PM CDTSevere Thunderstorm WarningOAXCedar56 min
Jul 17, 12:33 AM CDTFlash Flood WarningOAXCedar3 hr

Nearby

Flash Flood Warnings in Nebraska, 1996Every flash flood warning in 1996

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.