Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 151, NWS North Platte, NE

September 7, 1994Keith County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 7, 1994, 1:33 AM MDT for Keith County, Nebraska. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Sep 7, 1994, 1:33 AM MDT (07:33 UTC)
Expired
Sep 7, 1994, 2:30 AM MDT
In force
57 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Keith County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.6 hours before the alert went out and 89 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 1994-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 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 1994-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
127 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
2422 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 070733 RRA
SVRLBF
NEC101-070830-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
133 AM MDT WED SEP 7 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 230 AM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF NEBRASKA
      THE CITY OF OGALLALA...CENTRAL AND SOUTHERN KEITH

AT 125 AM MDT RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES WEST
SOUTHWEST OF OGALLALA MOVING EAST SOUTHEAST AT 15 MILES AN HOUR.
OGALLALA IS INCLUDED IN THIS WARNING.  LARGE HAIL ALONG WITH 30 TO
40 MILE AN HOUR WINDS ARE LIKELY WITH THIS STORM.

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.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM HIGH OBJECTS.  MOVE INDOOR IF POSSIBLE.  WHEN
INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING
TELEPHONES AND ELECTRICAL EQUIPMENT.

 MONSON 0732Z

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, Sep 6, 8:29 PM MDT, 5 hours 4 minutes before
NEZ005-070330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
829 PM MDT (929 PM CDT) TUE SEP 6 1994

...STRONG THUNDERSTORMS CONTINUE ACROSS CENTRAL CHERRY COUNTY...

AT 826 PM MDT (926 PM CDT)...RADAR INDICATED AN AREA OF STRONG
THUNDERSTORMS ACROSS THE OPEN COUNTRY OF CENTRAL CHERRY COUNTY.
THE STRONGEST STORM WAS LOCATED 20 MILES SOUTH OF MERRITT DAM OR
ABOUT 20 MILES NORTH OF MULLEN NEBRASKA.  THESE STORMS WERE MOVING
SOUTHEAST AT 25 MPH...HOWEVER THEY HAVE BEEN WEAKENING OVER PAST
HOUR AND WILL LIKELY CONTINUE TO DO SO.

ALTHOUGH THESE STORMS ARE WEAKENING...BRIEF HEAVY RAIN...DANGEROUS
LIGHTNING AND SMALL HAIL MAY STILL BE EXPERIENCED BY PERSONS IN
CENTRAL CHERRY COUNTY THROUGH 930 PM MDT (1030 PM CDT).

HORNE
Special weather statement, Sep 6, 10:24 PM MDT, 3 hours 9 minutes before
NEZ023>025-035>038-057>059-069>071-070525-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1124 PM CDT TUE SEP 6 1994

...STRONG THUNDERSTORMS REDEVELOPING ACROSS WEST CENTRAL NEBRASKA...

A NARROW LINE OF THUNDERSTORMS...SOME QUITE STRONG... HAVE DEVELOPED
OVER WEST CENTRAL NEBRASKA FROM 5 MILES TO 20 MILES NORTHWEST OF ELSIE
OR ABOUT 35 MILES SOUTHWEST OF NORTH PLATTE.  AT 1025 PM MDT THESE
STORMS WERE CONTINUING TO INTENSIFY AS THEY WERE MOVING SOUTHEAST AT 20
MILES AN HOUR.  SMALL HAIL ALONG WITH 30 TO 40 MILE AN HOUR WINDS ARE
POSSIBLE AS THESE STORMS MOVE TOWARD THE COMMUNITY OF ELSIE.

RESIDENTS OF ELSIE...HAYES CENTER AND ALSO IMPERIAL SHOULD BE PREPARED
TO MOVE TO A PLACE OF SAFETY AS THESE STORMS APPROACH.

STAY TUNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE
LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.

MONSON
Special weather statement, Sep 6, 10:27 PM MDT, 3 hours 6 minutes before
NEZ023>025-035>038-057>059-069>071-070525-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1124 PM CDT TUE SEP 6 1994

...STRONG THUNDERSTORMS REDEVELOPING ACROSS WEST CENTRAL NEBRASKA...

A NARROW LINE OF THUNDERSTORMS...SOME QUITE STRONG... HAVE DEVELOPED
OVER WEST CENTRAL NEBRASKA FROM 5 MILES TO 20 MILES NORTHWEST OF ELSIE
OR ABOUT 35 MILES SOUTHWEST OF NORTH PLATTE.  AT 1025 PM MDT THESE
STORMS WERE CONTINUING TO INTENSIFY AS THEY WERE MOVING SOUTHEAST AT 20
MILES AN HOUR.  SMALL HAIL ALONG WITH 30 TO 40 MILE AN HOUR WINDS ARE
POSSIBLE AS THESE STORMS MOVE TOWARD THE COMMUNITY OF ELSIE.

RESIDENTS OF ELSIE...HAYES CENTER AND ALSO IMPERIAL SHOULD BE PREPARED
TO MOVE TO A PLACE OF SAFETY AS THESE STORMS APPROACH.

STAY TUNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE
LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.

MONSON
Special weather statement, Sep 6, 11:12 PM MDT, 2 hours 21 minutes before
NEZ057>059-070615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1211 AM CDT (1111 PM MDT) WED SEP 7 1994

...STRONG THUNDERSTORMS REDEVELOPING ACROSS WEST CENTRAL NEBRASKA...

STRONG THUNDERSTORMS CONTINUED TO INTENSIFY NEAR OGALLALA OR 46 MILES
WEST OF NORTH PLATTE.  AT 1050 PM MDT OGALLALA REPORTED PEA SIZE HAIL
WITH WIND GUSTS FROM 40 TO 50 MILES AN HOUR.  THE STORMS WERE MOVING
EAST 15 MILES AN HOUR AND WILL AFFECT THE COMMUNITIES OF
ROSCOE...PAXTON AND SUTHERLAND DURING THE NEXT HOUR.

STRONG GUSTY WINDS...FREQUENT LIGHTNING...VERY HEAVY RAINFALL AND
SMALL HAIL MAY ACCOMPANY THE STRONGER STORMS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION
FOR THE LATEST WEATHER INFORMATION.

STASSER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 6:50 PM MDTSevere Thunderstorm WarningLBFPerkins40 min
Sep 6, 7:37 PM MDTSevere Thunderstorm WarningLBFHayes38 min
Sep 6, 8:05 PM MDTSevere Thunderstorm WarningLBFLincoln55 min
Sep 6, 8:18 PM MDTSevere Thunderstorm WarningLBFHayes57 min
Sep 6, 8:49 PM MDTSevere Thunderstorm WarningLBFFrontier56 min
Sep 7, 12:43 AM MDTSevere Thunderstorm WarningLBFChase, Perkins62 min
Sep 7, 1:25 AM MDTSevere Thunderstorm WarningLBFChase65 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.