Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 85, NWS Cheyenne, WY

July 7, 1993Garden County, Morrill County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 7, 1993, 9:55 PM MDT for Garden County, Morrill County, Nebraska. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1993, 9:55 PM MDT (03:55 UTC)
Expired
Jul 7, 1993, 10:30 PM MDT
In force
35 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Garden County, NE, Morrill County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.9 hours before the alert went out and 183 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 1993-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 916 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 1993-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
916 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1603 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

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 Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 9:17 PM MDTSevere Thunderstorm WarningCYSCheyenne, Deuel28 min
Jul 7, 9:30 PM MDTSevere Thunderstorm WarningCYSGarden30 min
Jul 7, 9:55 PM MDTSevere Thunderstorm WarningCYSBanner35 min
Jul 7, 10:31 PM MDTSevere Thunderstorm WarningCYSMorrill29 min
Jul 7, 11:01 PM MDTSevere Thunderstorm WarningCYSCheyenne, Morrill29 min
Jul 7, 11:32 PM MDTSevere Thunderstorm WarningCYSGarden28 min
Jul 8, 12:00 AM MDTSevere Thunderstorm WarningCYSGarden30 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1993Every severe thunderstorm 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.