Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 92, NWS North Platte, NE

July 6, 1994Hooker County, McPherson County, Thomas County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 6, 1994, 8:22 PM MDT for Hooker County, McPherson County, Thomas County, Nebraska. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1994, 8:22 PM MDT (02:22 UTC)
Expired
Jul 6, 1994, 9:30 PM MDT
In force
68 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Hooker County, NE, McPherson County, NE, Thomas County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.4 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 1994-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2046 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 1994-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
2046 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
2067 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.9

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KLBF 070222 RRA
SVRLBF
NEC117-171-091-070330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
922 PM CDT WED JUL 6 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF NEBRASKA
      NORTHERN MCPHERSON...WESTERN THOMAS...EASTERN HOOKER

AT 915 PM CDT RADAR SHOWED SEVERE THUNDERSTORMS FROM 10 MILES
EAST OF MULLEN TO 8 MILES NORTH OF TRYON.  THESE STORMS WERE
MOVING VERY SLOWLY EAST.  MULLEN IS 55 MILES SOUTH OF VALENTINE.
TRYON IS 35 MILES NORTH OF NORTH PLATTE.

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.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A
TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT!!

THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.  MOTORISTS SHOULD AVOID LOW WATER CROSSINGS.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL GREATER THAN 3/4 INCH IN DIAMETER...DEADLY LIGHTNING
AND VERY HEAVY RAIN THAT CAN FLOOD A LOW LYING AREA QUICKLY.

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.

 RC

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 6, 2:34 PM MDT, 5 hours 48 minutes before
NEZ023-035-057-062135-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
334 PM CDT (234 PM MDT) WED JUL 6 1994

...TORNADO WATCH FOR GRANT...ARTHUR AND KEITH COUNTIES TIL 800 PM MDT...

AT 230 PM MDT RADAR INDICATED SHOWERS DEVELOPING ACROSS EASTERN GRANT
COUNTY.  THE DEVELOPMENT WAS TAKING PLACE 7 MILES SOUTH OF WHITMAN OR
ABOUT 60 MILES NORTHWEST OF NORTH PLATTE.

SHOWERS AND THUNDERSTORMS SHOULD BEGIN DEVELOPING RAPIDLY ACROSS THE
AREA DURING THE LATE AFTERNOON AND EARLY EVENING.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STlATION FOR
THE LATEST WEATHER INFORMATION.

FAUCETTE
Special weather statement, Jul 6, 3:13 PM MDT, 5 hours 9 minutes before
NEZ023-035-057-062215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
413 PM CDT (313 PM MDT) WED JUL 6 1994

...TORNADO WATCH FOR GRANT...ARTHUR AND KEITH COUNTIES TIL 800 PM MDT...

AT 305 PM MDT (405 PM CDT) RADAR INDICATED THUNDERSTORMS DEVELOPING
RAPIDLY ACROSS GRANT COUNTY.  AN AREA OF SHOWERS AND THUNDERSTORMS
STRETCHED FROM 70 MILES NORTHWEST OF NORTH PLATTE NEAR WHITMAN TO 85
MILES NORTHWEST OF NORTH PLATTE IN WESTERN GRANT COUNTY.

THE STRONGEST OF THESE STORMS WAS 5 MILES NORTHEAST OF HYANNIS OR ABOUT
75 MILES SOUTHWEST OF VALENTINE.  ALL OF THESE STORMS ARE MOVING TO THE
NORTH AT 20 MILES AN HOUR.  THESE STORMS ARE CAPABLE OF PRODUCING HEAVY
RAIN...STRONG GUSTY WINDS AND SMALL HAIL.

IF YOU PLAN TO BE OUTDOORS THIS EVENING...CHECK THE LATEST WEATHER
INFORMATION AND KEEP A WEATHER EYE ON THE SKY.

FAUCETTE
Special weather statement, Jul 6, 8:19 PM MDT, 3 minutes before
NEZ005-070315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
818 PM MDT (918 PM CDT) WED JUL 6 1994

...A TORNADO WATCH FOR CHERRY COUNTY UNTIL 11 PM MDT/MIDNIGHT CDT...

AT 815 PM MDT...RADAR INDICATED WIDESPREAD RAIN SHOWERS OVER CHERRY
COUNTY WITH THUNDERSTORMS OVER THE EAST PARTS OF THE COUNTY.  THE
THUNDERSTORMS WERE LOCATED 40 MILES SOUTH OF VALENTINE...AND JUST A FEW
MILES NORTH OF MULLEN.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 15 MPH.

PEOPLE ESPECIALLY OVER EASTERN CHERRY COUNTY SHOULD BE ON THE LOOKOUT
FOR DANGEROUS LIGHTNING AND SMALL HAIL THROUGH 915 PM MDT/1015 PM CDT.
KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:01 PM MDTSevere Thunderstorm WarningLBFGrant, Hooker59 min
Jul 6, 7:03 PM MDTSevere Thunderstorm WarningLBFHooker57 min
Jul 6, 8:57 PM MDTSevere Thunderstorm WarningLBFMcPherson63 min
Jul 6, 9:17 PM MDTSevere Thunderstorm WarningLBFKeith, McPherson58 min
Jul 6, 9:24 PM MDTSevere Thunderstorm WarningLBFKeith, Perkins51 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.