Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 70, NWS North Platte, NE

July 3, 1994Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 3, 1994, 7:22 PM MDT for Grant County, Nebraska. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1994, 7:22 PM MDT (01:22 UTC)
Expired
Jul 3, 1994, 8:15 PM MDT
In force
53 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Grant County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.4 hours before the alert went out and 129 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 1994-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2152 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 1994-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
2152 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1485 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.5

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KLBF 040122 RRA
SVRLBF
NEC075-040215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
722 PM MDT SUN JUL 3 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 815 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      CENTRAL AND EASTERN GRANT

AT 715 PM MDT A SEVERE THUNDERSTORM WAS INDICATED BY RADAR FROM
HYANNIS TO 5 MILES SOUTH OF HYANNIS...MOVING TO THE EAST AT 25
MILES AN HOUR.  THE GRANT COUNTY SHERIFF REPORTED MARBLE SIZED
HAIL AND WIND GUSTS TO 40 MILES AN HOUR IN HYANNIS WITH THIS
THUNDERSTORM.

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.

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

 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, Jul 3, 6:21 PM MDT, 1 hour 1 minute before
NEZ023-035-057-069-040125-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
722 PM CDT (622 PM MDT) SUN JUL 3 1994

AT 615 PM MDT RADAR REVEALED AN AREA OF SCATTERED THUNDERSTORMS WHICH
WERE BEGINNING TO MOVE INTO PARTS OF WEST CENTRAL AND SOUTHWEST
NEBRASKA.  THE STRONGEST THUNDERSTORMS WERE LOCATED 20 MILES NORTHWEST
OF THE TOWN OF ARTHUR...OR ABOUT 75 MILES NORTHWEST OF NORTH PLATTE...
AND ABOUT 25 MILES WEST SOUTHWEST OF ARTHUR...OR ABOUT 70 MILES WEST
NORTHWEST OF NORTH PLATTE.

THESE THUNDERSTORMS WERE MOVING EAST AROUND 30 MILES AN HOUR...AND WILL
BE PASSING ACROSS OPEN COUNTY OVER SOUTHERN GRANT AND SOUTHERN AND
CENTRAL ARTHUR COUNTIES BY 700 PM MDT.  THE MAIN THREAT FROM THESE
THUNDERSTORMS WILL BE SMALL HAIL...STRONG GUSTY WINDS...AND HEAVY
RAINS.

OTHER SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL BE MOVING ACROSS
SOUTHERN AND CENTAL CHASE COUNTY...AND COULD AFFECT THE COMMUNITY OF
IMPERIAL BY 715 PM pMDT.

SC
Special weather statement, Jul 3, 6:22 PM MDT, 1 hour before
NEZ005-050130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF
622 PM MDT SUN JUL 3 1994

...SEVERE THUNDERSTORM WATCH FOR CHERRY COUNTY IN EFFECT UNTIL 1AM MDT
    (2 AM CDT)...

AT 621 PM MDT RADAR SHOWED A FEW AREAS OF ISOLATED THUNDERSTORMS ACROSS
THE CENTRAL PART OF CHERRY COUNTY.  THE STRONGEST STORM WAS LOCATED
30 MILES SOUTH OF MERRIMAN NEBRASKA OR 55 MILES WEST OF BROWNLEE MOVING
EAST AT 35 MILES AN HOUR.

BRIEF HEAVY RAIN...GUSTY WIND...DEADLY LIGHTNING AND SOME SMALL HAIL
WILL LIKELY OCCUR WITH THE STORMS OVER CHERRY COUNTY THROUGH 730 PM
MDT (830 PM CDT)
EASTLACK
Special weather statement, Jul 3, 6:24 PM MDT, 58 minutes before
NEZ023-035-057-069-040125-

SPECIAL WEATHER STATEMENT..CORRECTED...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
722 PM CDT (622 PM MDT) SUN JUL 3 1994

AT 615 PM MDT RADAR REVEALED AN AREA OF SCATTERED THUNDERSTORMS WHICH
WERE BEGINNING TO MOVE INTO PARTS OF WEST CENTRAL AND SOUTHWEST
NEBRASKA.  THE STRONGEST THUNDERSTORMS WERE LOCATED 20 MILES NORTHWEST
OF THE TOWN OF ARTHUR...OR ABOUT 75 MILES NORTHWEST OF NORTH PLATTE...
AND ABOUT 25 MILES WEST SOUTHWEST OF ARTHUR...OR ABOUT 70 MILES WEST
NORTHWEST OF NORTH PLATTE.

THESE THUNDERSTORMS WERE MOVING EAST AROUND 30 MILES AN HOUR...AND WILL
BE PASSING ACROSS OPEN COUNTY OVER SOUTHERN GRANT AND SOUTHERN AND
CENTRAL ARTHUR COUNTIES BY 700 PM MDT.  THE MAIN THREAT FROM THESE
THUNDERSTORMS WILL BE SMALL HAIL...STRONG GUSTY WINDS...AND HEAVY
RAINS.

OTHER SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL BE MOVING ACROSS
SOUTHERN AND CENTRAL CHASE COUNTY...AND COULD AFFECT THE COMMUNITY OF
~IMPERIAL BY 715 PM MDT.

SC
Special weather statement, Jul 3, 7:16 PM MDT, 6 minutes before
NEZ023-035-057-069-040225-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
815 PM CDT (715 PM MDT) SUN JUL 3 1994

AT 715 PM MDT A 25 MILE WIDE AREA OF SCATTERED THUNDERSTORMS WERE
MOVING ACROSS WEST CENTRAL AND SOUTHWEST NEBRASKA.
THE STRONGEST THUNDERSTORMS WERE LOCATED ABOUT 10 MILES SOUTHWEST
OF THE TOWN OF HYANNIS .OR ABOUT 45 MILES EAST OF ALLIANCE NE...
OR ABOUT 70 NORTHWEST OF NORTH PLATTE NEBRASKA.

THESE THUNDERSTORMS WERE MOVING EAST AROUND 30 MILES AN HOUR...AND WILL
BE PASSING ACROSS OPEN COUNTY OVER SOUTHERN GRANT AND SOUTHERN AND
CENTRAL ARTHUR COUNTIES.  THE MAIN THREAT FROM THESE THUNDERSTORMSS WILL
BE SMALL HAIL...STRONG GUSTY WINDS...AND HEAVY RAINS.

OTHER SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL BE MOVING ACROSS
SOUTHERN AND CENTRAL CHASE COUNTY...AND COULD AFFECT THE COMMUNITY OF
IMPERIAL.
RN

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.