Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS North Platte, NE

April 25, 1994Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 25, 1994, 3:46 PM CDT for Custer County, Nebraska. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1994, 3:46 PM CDT (20:46 UTC)
Expired
Apr 25, 1994, 4:30 PM CDT
In force
44 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 12:00Z, 8.8 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 12:00Z on 1994-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1994-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2467 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 252046
SVRLBF
NEC041-252130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
346 PM CDT MON APR 25 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE CENTRAL PART OF NEBRASKA
      CENTRAL AND NORTHERN CUSTER

AT 340 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES TO THE
SOUTHWEST OF BROKEN BOW.  BROKEN BOW IS 49 MILES EAST NORTHEAST OF
NORTH PLATTE.  THE THUNDERSTORM WAS MOVING NORTH AT 40 MILES AN
HOUR...AND WILL BE AFFECTING THE COMMUNITIES OF BROKEN BOW AND
MERNA BY 350 PM CDT.

IF YOU ARE IN THE AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY
HEAVY RAIN...AND DEADLY LIGHTNING.

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.

REPORTS OF SEVERE WEATHER OR DAMAGE CAN BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

 THIS WARNING REPLACES THE EARLIER WARNING FOR SOUTHERN AND CENTRAL
 CUSTER COUNTIES.  MARBLE SIZED HAIL AND HEAVY RAIN OCCURRED IN
 OCONTO AT 331 PM CDT...WITH A POSSIBLE TORNADO REPORTED 1 MILE
 EAST OF WEISERT NEBRASKA AT 335 PM CDT.

 SC

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, Apr 25, 2:35 PM CDT, 1 hour 11 minutes before
NEZ023-025-035>038-057>059-069>071-252030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
235 PM CDT MON APR 25 1994

...TORNADO WATCH UNTIL 10 PM CDT FOR CUSTER COUNTY...

AT 225 PM CDT A LARGE AREA OF SCATTERED SHOWERS AND THUNDERSTORMS
WAS LOCATED OVER MUCH OF WEST CENTRAL AND NORTH CENTRAL NEBRASKA.
THIS AREA WAS GENERALLY SOUTH OF A LINE FROM ARTHUR...OR 52 MILES
WEST NORTHWEST OF NORTH PLATTE...TO SARGENT...WHICH IS 61 MILES
NORTHWEST OF GRAND ISLAND...AND EXTENDED SOUTH ALONG THE KANSAS
BORDER.

LIGHT TO MODERATE RAIN SHOWERS WERE INDICATED BY RADAR ACROSS CENTRAL
CUSTER COUNTY...BUT THE STRONGEST THUNDERSTORMS WERE 45 MILES SOUTHEAST
OF NORTH PLATTE...IN EASTERN FRONTIER AND WESTERN GOSPER COUNTIES.
OTHER THUNDERSTORMS WERE OVER CENTRAL LINCOLN COUNTY AND THE CITY OF
NORTH PLATTE.
>
THE THUNDERSTORMS WERE MOVING TO THE NORTH AROUND 35 MILES AN HOUR.

IF THREATENING WEATHER APPROACHES YOUR AREA SEEK SAFE SHELTER
IMMEDIATELY.

SC
Special weather statement, Apr 25, 3:12 PM CDT, 34 minutes before
NEZ023-025-035>038-057>059-069>071-252100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
310 PM CDT MON APR 25 1994

...TORNADO WATCH UNTIL 10 PM CDT FOR CUSTER COUNTY...

AT 300 PM CDT AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WAS
CONCENTRATED IN A BAND ABOUT 55 MILES WIDE.  THIS AREA WAS LOCATED
FROM 50 MILES SOUTHEAST TO 55 MILES SOUTH OF NORTH PLATTE.

ONE THUNDERSTORM WITH VERY HEAVY RAIN...ALONG WITH POSSIBLE
STRONG GUSTY WINDS AND SMALL HAIL...WAS LOCATED JUST EAST
OF BRADY...OR ABOUT 17 MILES EAST SOUTHEAST OF NORTH PLATTE.

ANOTHER BATCH OF VERY STRONG THUNDERSTORMS WAS LOCATED OVER
CENTRAL DAWSON COUNTY...AND WAS POISED TO ENTER SOUTHERN CUSTER
COUNTY BY 320 PM CDT.  PERSONS IN SOUTHERN CUSTER COUNTY...
ESPECIALLY IN THE COMMUNITY OF OCONTO...SHOULD PREPARE NOW FOR
THREATENING WEATHER.

THE THUNDERSTORMS WERE MOVING TO THE NORTH AROUND 35 MILES AN HOUR.

IF THREATENING WEATHER APPROACHES YOUR AREA SEEK SAFE SHELTER
IMMEDIATELY.

SC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 3:23 PM CDTSevere Thunderstorm WarningLBFCuster37 min
Apr 25, 4:10 PM CDTTornado WarningLBFHayes, Lincoln50 min
Apr 25, 4:22 PM CDTSevere Thunderstorm WarningLBFWheeler38 min
Apr 25, 4:49 PM CDTTornado WarningLBFAntelope, Holt26 min
Apr 25, 5:04 PM CDTTornado WarningLBFAntelope26 min
Apr 25, 5:18 PM CDTSevere Thunderstorm WarningLBFMadison30 min
Apr 25, 5:31 PM CDTSevere Thunderstorm WarningLBFPierce, Stanton, Wayne59 min
Apr 25, 6:08 PM CDTSevere Thunderstorm WarningLBFCedar67 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994

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.