Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 92, NWS North Platte, NE

July 10, 1993Chase County, Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 10, 1993, 6:13 PM MDT for Chase County, Perkins County, Nebraska. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Jul 10, 1993, 6:13 PM MDT (00:13 UTC)
Expired
Jul 10, 1993, 7:00 PM MDT
In force
47 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Chase County, NE, Perkins County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.2 hours before the alert went out and 103 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 North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 6:11 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt, Rock64 min
Jul 10, 6:48 PM MDTTornado WarningLBFBoyd, Holt27 min
Jul 10, 7:11 PM MDTSevere Thunderstorm WarningLBFHayes, Lincoln49 min
Jul 10, 7:18 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt, Knox57 min
Jul 10, 8:01 PM MDTSevere Thunderstorm WarningLBFLoup24 min
Jul 10, 8:01 PM MDTSevere Thunderstorm WarningLBFGarfield, Wheeler59 min
Jul 10, 8:02 PM MDTSevere Thunderstorm WarningLBFHayes43 min
Jul 10, 8:11 PM MDTSevere Thunderstorm WarningLBFHolt, Knox64 min
Jul 10, 9:49 PM MDTSevere Thunderstorm WarningLBFLincoln56 min
Jul 10, 10:31 PM MDTSevere Thunderstorm WarningLBFFrontier44 min
Jul 11, 7:10 AM MDTFlash Flood WarningLBFFrontier2 hr

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.