Alert archive / Nebraska / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 55, NWS North Platte, NE

June 17, 1991Hooker County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 17, 1991, 4:06 PM MDT for Hooker County, Nebraska. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1991, 4:06 PM MDT (22:06 UTC)
Expired
Jun 17, 1991, 5:00 PM MDT
In force
54 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Hooker County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.1 hours before the alert went out and 98 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 12:00Z on 1991-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 12:00Z on 1991-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
6 J/kg
Mixed-layer CIN
-602 J/kg
Mixed-layer LCL
1866 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jun 16, 6:44 PM MDTSevere Thunderstorm WarningLBFKeith, Perkins61 min
Jun 17, 3:10 PM MDTTornado WarningLBFGrant35 min
Jun 17, 4:07 PM MDTTornado WarningLBFCherry38 min
Jun 17, 4:34 PM MDTSevere Thunderstorm WarningLBFGrant36 min
Jun 17, 4:47 PM MDTSevere Thunderstorm WarningLBFCherry28 min
Jun 17, 5:24 PM MDTTornado WarningLBFMcPherson36 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1991Every severe thunderstorm 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.