Alert archive / Nebraska / Flash Flood Warnings in 1993

Flash Flood Warning 6, NWS Hastings, NE

July 11, 1993Dawson County, Gosper County, Nebraska

NWS Hastings, NE issued this flash flood warning at Jul 11, 1993, 4:49 AM CDT for Dawson County, Gosper County, Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 11, 1993, 4:49 AM CDT (09:49 UTC)
Expired
Jul 11, 1993, 7:45 AM CDT
In force
3 hr
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Dawson County, NE, Gosper County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.8 hours before the alert went out and 81 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, N. Platte/Lee Bi, NE at 00:00Z on 1993-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3391 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, N. Platte/Lee Bi, NE at 00:00Z on 1993-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
3391 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
1.6
Supercell composite
12.4

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 Hastings, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 9:13 PM CDTSevere Thunderstorm WarningGIDSherman, Valley32 min
Jul 10, 9:57 PM CDTSevere Thunderstorm WarningGIDPhelps33 min

Nearby

Flash Flood Warnings in Nebraska, 1993Every flash flood warning in 1993

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.