Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 64, NWS North Platte, NE

July 4, 1992Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 4, 1992, 8:04 PM MDT for Perkins County, Nebraska. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1992, 8:04 PM MDT (02:04 UTC)
Expired
Jul 4, 1992, 8:30 PM MDT
In force
26 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Perkins County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.1 hours before the alert went out and 93 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 1992-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4381 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 1992-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
4381 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1331 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
3.7
Supercell composite
25.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 050205
SVRLBF
NEC135-050230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
904 PM CDT (804 PM MDT) SAT JUL 4 1992
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM CDT (830 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST NEBRASKA
 
   ...WEST CENTRAL PERKINS COUNTY
 
AT 800 PM MDT RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES NORTHWEST
OF GRANT NEBRASKA OR 65 MILES WEST OF NORTH PLATTE. THE THUNDERSTORM
WAS MOVING EAST SOUTHEAST AT 25 MILES AN HOUR.
 
 
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.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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

Special weather statement, Jul 4, 7:21 PM MDT, 43 minutes before
NEZ006-007-012-016-017-050215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
820 PM CDT FRI JUL 3 1992

...STRONG THUNDERSTORMS WILL MOVE EAST INTO SOUTHWEST AND WEST CENTRAL
   NEBRASKA DURING THE NEXT FEW HOURS.

AT 818 PM CDT...A VERY STRONG THUNDERSTORM WAS LOCATED 15 MILES WEST
OF ARTHUR OR 70 MILES NORTHWEST OF NORTH PLATTE. THIS VERY STRONG
THUNDERSTORM WILL LIKELY PRODUCE A BRIEF PERIOD OF VERY HEAVY RAIN AND
WIND GUSTS TO 35 MILES AN HOUR. SMALL HAIL IS ALSO POSSIBLE.

OTHER VERY STRONG THUNDERSTORMS WILL INTO WESTERN KEITH AND PERKINS
COUNTIES DURING THE NEXT FEW HOURS. THE THUNDERSTORMS WERE MOVING
SOUTHEAST AT 25 MILES AN HOUR.

REMEMBER A TORNADO WATCH I|S IN EFFECT UNTIL 2 AM CDT FOR ALL OF
SOUTHWEST AND WEST CENTRAL NEBRASKA.
ABBAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 9:01 PM MDTSevere Thunderstorm WarningLBFGrant, Hooker29 min
Jul 4, 9:49 PM MDTSevere Thunderstorm WarningLBFLincoln26 min
Jul 4, 10:10 PM MDTSevere Thunderstorm WarningLBFRed Willow35 min
Jul 5, 12:27 AM MDTSevere Thunderstorm WarningLBFKeya Paha36 min
Jul 5, 12:27 AM MDTSevere Thunderstorm WarningLBFRock63 min
Jul 5, 5:11 AM MDTSevere Thunderstorm WarningLBFCherry49 min
Jul 5, 5:19 AM MDTSevere Thunderstorm WarningLBFLincoln41 min
Jul 5, 7:15 AM MDTSevere Thunderstorm WarningLBFLincoln30 min
Jul 5, 1:11 PM MDTSevere Thunderstorm WarningLBFLincoln49 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; the sounding from the Mesonet's radiosonde archive.