Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 55, NWS North Platte, NE

June 30, 1992Hooker County, McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 30, 1992, 8:36 PM MDT for Hooker County, McPherson County, Nebraska. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1992, 8:36 PM MDT (02:36 UTC)
Expired
Jun 30, 1992, 9:30 PM MDT
In force
54 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Hooker County, NE, McPherson County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.6 hours before the alert went out and 80 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 1992-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2015 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 1992-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
2015 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1798 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.4
Supercell composite
9.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 010231
SVRLBF
NEC091-117-010330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
936 PM CDT (836 PM MDT) TUE JUN 30 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
 
   ...SOUTHERN HOOKER COUNTY...MCPHERSON COUNTY
 
AT 925 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM LOCATED 20 MILES
SOUTHWEST OF MULLEN....OR 50 MILES NORTHWEST OF NORTH PLATTE. THE
STORM WAS MOVING SOUTHEAST AT 20 MILES AN HOUR. THIS STORM WILL BE
AFFECTING THE TOWN OF TRYON BY 1015 PM CDT.
 
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.
 
WALAWENDER 0231Z

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, Jun 30, 6:37 PM MDT, 1 hour 59 minutes before
NEZ006-010130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
630 PM MDT TUE JUN 30 1992

...THUNDERSTORMS WERE MOVING INTO GRANT COUNTY NEBRASKA...
...TORNADO WATCH UNTIL 9 PM MDT...

AT 630 PM MDT THUNDERSTORMS WERE MOVING INTO GRANT COUNTY NEAR
THE CITY OF WHITMAN NEBRASKA OR 75 MILES NORTHWEST OF NORTH PLATTE.
THUNDERSTORM HAS BEEN MOVING EAST SOUTHEAST AT 35 MILES PER HOUR.

BRIEF HEAVY RAIN...HAIL..GUSTY SURFACE WIND ANOD DANGEROUS LIGHTNING
LIGHTNING...HAS THIS THUNDERSTORMS MOVE ACROSS THE NORTHERN
PORTIONS OF GRANT COUNTY.

IF THREATENING WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF
SAFETY.
HETZKE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 6:14 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 6:44 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 7:04 PM MDTSevere Thunderstorm WarningLBFGrant26 min
Jun 30, 7:14 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 7:37 PM MDTSevere Thunderstorm WarningLBFHooker, McPherson53 min
Jun 30, 10:04 PM MDTSevere Thunderstorm WarningLBFMcPherson56 min
Jun 30, 10:52 PM MDTSevere Thunderstorm WarningLBFLogan33 min
Jun 30, 11:04 PM MDTSevere Thunderstorm WarningLBFMcPherson56 min
Jun 30, 11:57 PM MDTSevere Thunderstorm WarningLBFMcPherson63 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.