Alert archive / Nebraska / Flash Flood Warnings in 1991

Flash Flood Warning 4, NWS Omaha, NE

June 4, 1991Dodge County, Saunders County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jun 4, 1991, 9:57 PM CDT for Dodge County, Saunders County, Nebraska. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 1991, 9:57 PM CDT (02:57 UTC)
Expired
Jun 5, 1991, 3:00 AM CDT
In force
5 hr
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Dodge County, NE, Saunders County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 3.0 hours before the alert went out and 25 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 1991-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1373 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 1991-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.193958Sfc1 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
1373 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
846 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.9

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
Jun 4, 7:10 PM CDTFlash Flood WarningOAXDodge4 hr
Jun 4, 7:46 PM CDTSevere Thunderstorm WarningOAXDodge, Saunders59 min
Jun 4, 8:45 PM CDTSevere Thunderstorm WarningOAXDodge, Saunders60 min

Nearby

Flash Flood Warnings in Nebraska, 1991Every flash flood warning in 1991

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.