Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 49, NWS North Platte, NE

June 26, 1993Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 26, 1993, 8:06 PM CDT for Custer County, Nebraska. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Jun 26, 1993, 8:06 PM CDT (01:06 UTC)
Expired
Jun 26, 1993, 8:45 PM CDT
In force
39 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Custer County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.1 hours before the alert went out and 79 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 1993-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2851 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 1993-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
2851 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1404 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 270112 COR
SVRLBF
NEC041-270130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
806 PM CDT SAT JUN 26 1993

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL NEBRASKA

   ...SOUTHWESTERN CUSTER COUNTY

AT 805 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF
OCONTO OR ABOUT 30 MILES EAST OF NORTH PLATTE. THE STORM WAS MOVING
SOUTHEAST AT 20 MILES AN HOUR.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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.


ABBAS

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 26, 7:02 PM CDT, 1 hour 4 minutes before
NEZ007-016-017-260200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
700 PM CDT SAT JUN 26 1993

...A TORNADO WATCH IS IN EFFECT UNTIL 11 PM CDT FOR PARTS OF
   SOUTHWEST NEBRASKA...

...THUNDERSTORMS WERE STILL OCCURRING OVER CUSTER COUNTY...

AT 655 PM CDT...AN AREA OF THUNDERSTORMS WAS LOCATED FROM
25 MILES WEST SOUTHWEST TO 15 MILES SOUTHEAST OF BROKEN BOW.
THE STRONGEST THUNDERSTORMS WHICH MAY PRODUCE BRIEF PERIODS
OF VERY HEAVY RAIN..SMALL HAIL AND GUSTY WINDS WERE LOCATED
6 MILES SOUTH OF ARNOLD AND NEAR CALLAWAY.  THE STORMS WERE
MOVING SOUTHEAST AT 20 MILES AN HOUR.

NO THUNDERSTORMS WERE OCCURRING IN CHASE..DUNDY..HAYES..HITCHCOCK
..FRONTIER AND RED WILLOW< COUNTIES WHICH ARE IN A TORNADO WATCH.
ABBAS

Nearby

Severe Thunderstorm Warnings in Nebraska, 1993Every severe thunderstorm warning in 1993

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.