Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 142, NWS North Platte, NE

August 6, 1992Chase County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 6, 1992, 6:31 PM MDT for Chase County, Nebraska. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Aug 6, 1992, 6:31 PM MDT (00:31 UTC)
Expired
Aug 6, 1992, 7:15 PM MDT
In force
44 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Chase County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 114 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 1992-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1552 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 1992-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
1552 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
1378 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 070033
SVRLBF
NEC029-070115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
731 PM CDT (631 PM MDT) THU AUG 6 1992
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CDT (715 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST NEBRASKA
 
   ...NORTHERN CHASE COUNTY
 
AT 625 PM MDT RADAR SHOWED A SEVERE THUNDERSTORMS 20 MILES NORTHWEST
OF IMPERIAL NEBRASKA 70 SOUTHWEST OF NORTH PLATTE. THIS STORMS WAS
MOVING EAST AT 35 MILES AN HOUR. THIS REPLACE THE WARNING FOR SOUTHERN
PERKINS COUNTY.
 
 
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 DANGERO US 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, Aug 6, 4:43 PM MDT, 1 hour 48 minutes before
NEZ006-012-062330-

SPECIAL WEATHER STATEMENT...CORRECTED TIME IN FIRST LINE...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
440 PM MDT THU AUG 6 1992

...SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT FOR PARTS OF
   WESTERN NEBRASKA...

AT 430 PM MDT RADAR REVEALED SCATTERED SHOWERS AND THUNDERSTORMS
POISED TO ENTER WEST CENTRAL AND NORTH CENTRAL NEBRASKA.  THE
LEADING EDGE OF THESE THUNDERSTORMS WAS LOCATED FROM 55 MILES
WEST NORTHWEST OF NORTH PLATTE...NEAR THE TOWN OF ARTHUR...TO
10 MILES WEST OF OGALLALA.  THESE THUNDERSTORMS WERE MOVING TO
THE EAST AT 20 MPH.  THUNDERSTORMS WITH VERY HEAVY RAIN...ALONG
WITH POSSIBLE GUSTY WINDS AND HAIL...WILL BE MOVING INTO THE
WESTERN PARTS OF ARTHUR AND KEITH COUNTIES BY 525 PM MDT.

BOATERS AND CAMPERS ON LAKE MCCONAUGHY SHOULD PREPARE NOW FOR
THREATENING WEATHER.
SC
Special weather statement, Aug 6, 5:29 PM MDT, 1 hour 2 minutes before
NEZ006-012-070030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
530 PM MDT THU AUG 6 1992

...SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT FOR PARTS OF
   WESTERN NEBRASKA...

AT 530 PM MDT RADAR SHOWS SCATTERED SHOWERS AND THUNDERSTORMS
MOVING INTO WEST CENTRAL AND NORTH CENTRAL NEBRASKA.  THE
LEADING EDGE OF THESE THUNDERSTORMS WAS LOCATED FROM 55 MILES
NORTHWEST OF NORTH PLATTE...NEAR THE TOWN OF ARTHUR...TO NEAR
THE CITY OF OGALLALA TO 20 WEST OF GRANT OR 65 MILES WEST SOUTH
WEST OF NORTH PLATTE. THE THUNDERSTORMS WERE MOVING EAST AT 20
MPH.
THE STRONGEST THUNDERSTORMS WILL PRODUCE HEAVY RAIN..GUSTY WINDS
AND HAIL AS THE STORMS MOVE ACROSS ARTHUR COUNTY TO KEITH COUNTY AND
PERKINS COUNTY.
BOATERS AND CAMPERS ON LAKE MCCONAUGHY SHOULD PREPARE NOW FOR
THREATENING WEATHER.                                         HETZKE

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.