Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 65, NWS North Platte, NE

July 4, 1992Grant County, Hooker County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 4, 1992, 9:01 PM MDT for Grant County, Hooker County, Nebraska. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1992, 9:01 PM MDT (03:01 UTC)
Expired
Jul 4, 1992, 9:30 PM MDT
In force
29 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Grant County, NE, Hooker County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.0 hours before the alert went out and 112 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 050303
SVRLBF
NEC075-091-050330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1001 PM CDT (901 PM MDT) SAT JUL 4 1992
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT (930 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL NEBRASKA
 
   ...EAST CENTRAL GRANT COUNTY...WEST CENTRAL HOOKER COUNTY
 
AT 858 PM MDT RADAR INDICATED A SEVERE THUNDERSTORM FROM 10 MILES
SOUTHEAST OF HYANNIS TO 15 MILES SOUTHWEST OF MULLEN OR 60 MILES
NORTHWEST OF NORTH PLATTE NEBRASKA. THE STORM WAS MOVING EAST AT 20
MILES PER HOUR.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
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.
HETZKE

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, 1 hour 40 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, 8:04 PM MDTSevere Thunderstorm WarningLBFPerkins26 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.