Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 192, NWS North Platte, NE

July 21, 1996Logan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 21, 1996, 7:50 PM CDT for Logan County, Nebraska. It was in force for 65 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 21, 1996, 7:50 PM CDT (00:50 UTC)
Expired
Jul 21, 1996, 8:55 PM CDT
In force
65 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Logan County, NE

What was reported inside it

TimeReportWhereRemark
Jul 21, 7:55 PM CDTHail 1Stapleton, NE
Jul 21, 8:05 PM CDTHail 2.5Stapleton, NE
Jul 21, 8:20 PM CDTHail 0.75Stapleton, NE
Jul 21, 8:35 PM CDTHail 0.75Gandy, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 50 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 1996-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2927 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 1996-07-22The 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
2927 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1149 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLBF 220053
SVRLBF
NEC113-220155-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
750 PM CDT SUN JUL 21 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 855 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL NEBRASKA

   ...LOGAN COUNTY
 
AT 748 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY NORTH PLATTE
DOPPLER RADAR 35 MILES SOUTHEAST OF MULLEN OR 16 MILES NORTH OF
STAPLETON MOVING SOUTH SOUTHEAST AT 13 MPH. THIS STORM IS EXPECTED
TO BE 10 MILES NORTH OF STAPLETON BY 850 PM CDT AND WILL REMAIN IN
RURAL AREAS.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TO:RNADOES WITH
LITTLE OR NO ADVANCE WARNING. IF YOU ARE IN THE PATH OF THIS STORM
YOU SHOULD MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.

MUTCHLER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jul 21, 3:41 PM CDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
341 PM CDT SUN JUL 21 1996

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1110 PM    11 S HAY SPRINGS          NE   1.75 INCH HAIL
07/20/96   SHERIDAN

RLB

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 8:15 PM CDTTornado WarningLBFLogan30 min
Jul 21, 8:57 PM CDTSevere Thunderstorm WarningLBFLincoln63 min
Jul 22, 6:02 AM CDTSevere Thunderstorm WarningLBFGrant48 min
Jul 22, 6:16 AM CDTTornado WarningLBFArthur, Grant49 min
Jul 22, 6:50 AM CDTSevere Thunderstorm WarningLBFMcPherson60 min
Jul 22, 7:43 AM CDTSevere Thunderstorm WarningLBFBrown62 min
Jul 22, 7:46 AM CDTSevere Thunderstorm WarningLBFLincoln, McPherson64 min
Jul 22, 7:55 AM CDTSevere Thunderstorm WarningLBFCherry50 min
Jul 22, 8:25 AM CDTSevere Thunderstorm WarningLBFRock65 min
Jul 22, 8:30 AM CDTSevere Thunderstorm WarningLBFLincoln60 min
Jul 22, 9:12 AM CDTSevere Thunderstorm WarningLBFFrontier58 min
Jul 22, 9:50 AM CDTSevere Thunderstorm WarningLBFKeith60 min
Jul 22, 10:12 AM CDTSevere Thunderstorm WarningLBFDeuel33 min
Jul 22, 10:31 AM CDTSevere Thunderstorm WarningLBFPerkins64 min
Jul 22, 10:38 AM CDTTornado WarningLBFPerkins32 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.