Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 84, NWS North Platte, NE

July 7, 1992Frontier County, Red Willow County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 7, 1992, 7:23 PM CDT for Frontier County, Red Willow County, Nebraska. It was in force for 57 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 7, 1992, 7:23 PM CDT (00:23 UTC)
Expired
Jul 7, 1992, 8:20 PM CDT
In force
57 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Frontier County, NE, Red Willow County, NE

What was reported inside it

TimeReportWhereRemark
Jul 7, 7:30 PM CDTHail 1.75Frontier, NE
Jul 7, 7:45 PM CDTHail 2.5Frontier, NE
Jul 7, 8:00 PM CDTHail 4Red Willow, NE
Jul 7, 8:15 PM CDTHail 4Red Willow, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.4 hours before the alert went out and 88 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 1992-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2790 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 1992-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939587897Sfc1 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
2790 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1394 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
2.2
Supercell composite
13.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 080025
SVRLBF
NEC063-145-080120-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
723 PM CDT TUE JUL 7 1992
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  820 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST NEBRASKA
 
   ...FRONTIER COUNTY...NORTHERN RED-WILLOW COUNTY
 
AT 717 PM CDT RADAR DETECTED A SEVERE THUNDERSTORM 5 MILES NORTHWEST
OF MCCOOK...OR 53 MILES SOUTH OF NORTH PLATTE. ANOTHER SEVERE
THUNDERSTORM WAS LOCATED 5 MILES WEST OF STOCKVILLE...OR 38 MILES
SOUTH SOUTHEAST OF NORTH PLATTE. THESE THUNDERSTORMS WERE MOVING
EAST AT AROUND 15 MPH.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:06 PM CDTSevere Thunderstorm WarningLBFRed Willow54 min
Jul 7, 8:56 PM CDTSevere Thunderstorm WarningLBFGarfield49 min
Jul 7, 9:22 PM CDTSevere Thunderstorm WarningLBFWheeler38 min
Jul 7, 11:34 PM CDTSevere Thunderstorm WarningLBFCedar41 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992Every severe thunderstorm warning in 1992

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.