Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 76, NWS North Platte, NE

July 4, 1994Keith County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 4, 1994, 9:30 PM MDT for Keith County, Nebraska. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1994, 9:30 PM MDT (03:30 UTC)
Expired
Jul 4, 1994, 10:00 PM MDT
In force
30 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, 3.5 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 1994-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2270 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 1994-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
2270 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1878 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KLBF 050332 RRA
SVRLBF
NEC101-050400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1030 PM CDT (930 PM MDT) MON JUL 4 1994
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT (1000 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST NEBRASKA
 
   ...NORTHERN KEITH COUNTY
 
AT 930 PM MDT RADAR CONTINUES TO INDICATE SEVERE THUNDERSTORMS ACROSS
NORTHERN KEITH COUNTY FROM ABOUT 45 MILES TO 60 MILES WEST OF NORTH
PLATTE. GOLFBALL SIZE HAIL HAS BEEN REPORTED WITH THESE STORMS.
RESIDENTS OF NORTHERN KEITH COUNTY ESPECIALLY ALONG LAKE MCCONAUGHY
SHOULD TAKE COVER.
 
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.
 
 
MONSON 0332Z

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 4, 7:25 PM MDT, 2 hours 5 minutes before
NEZ023>025-035>038-057>059-069>071-050225-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
824 PM CDT MON JUL 4 1994

...SEVERE THUNDERSTORM WATCH UNTIL 2 AM CDT FOR ALL OF SOUTHWEST AND
   WEST CENTRAL NEBRASKA EXCEPT FOR CHASE...HAYES AND FRONTIER
   COUNTIES...

AT 820 PM CDT VERY STRONG THUNDERSTORMS WERE CONTINUING TO BUILD AND
MOVE ACROSS WEST CENTRAL NEBRASKA.  THE STRONGEST STORMS WERE LOCATED
JUST SOUTH OF TRYON OR ABOUT 25 MILES NORTH NORTHWEST OF NORTH PLATTE
AND ALONG LAKE MCCONAUGHY OR ABOUT 55 MILES WEST OF NORTH PLATTE.  THESE
STORMS ARE NOW MOVING A LITTLE SOUTHEAST AT 30 MILES AN HOUR.
RESIDENTS OF THE OGALLALA AREA AND BOATERS AND CAMPERS ON AND AROUND
LAKE MCCONAUGHY SHOULD MOVE TO A PLACE OF SAFETY IMMEDIATELY.  BODIES
OF OPEN WATER ARE VERY DANGEROUS IN THIS TYPE OF SITUATION.

SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.

REMEMBER...LIGHTNING MAY STRIKE SOME MILES AWAY FROM THE PARENT
CLOUD.  PRECAUTIONS SHOULD BE TAKEN EVEN THOUGH THE THUNDERSTORM IS
NOT DIRECTLY OVERHEAD.

MONSON
Special weather statement, Jul 4, 7:28 PM MDT, 2 hours 2 minutes before
NEZ005-050230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF
728 PM MDT MON JUL 4 1994

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

AT 727 PM MDT RADAR INDICATED AREAS OF WIDE SPREAD SHOWERS AND ISOLATED
THUNDERSTORMS IN PARTS OF CHERRY COUNTY.  THE STRONGEST STORM WAS LOCATED
5 MILES SOUTHWEST OF BROWNLEE OR 5 MILES NORTHEAST OF MULLEN MOVING EAST
AT 30 MILES PER HOUR.

RESIDENTS SHOULD BE ALERT FOR BRIEF HEAVY RAIN...GUSTY WIND...DEADLY
LIGHTNING AND SOME SMALL HAIL IN THE LIKELY EVENT THAT THEY WILL OCCUR
WITH THE STORMS OVER CHERRY COUNTY THROUGH 830 PM MDT (930 PM CDT)
EASTLACK
Special weather statement, Jul 4, 7:56 PM MDT, 1 hour 34 minutes before
NEZ023>025-035>038-057>059-069>071-050300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
855 PM CDT MON JUL 4 1994

...SEVERE THUNDERSTORM WATCH UNTIL 2 AM CDT FOR ALL OF SOUTHWEST AND
   WEST CENTRAL NEBRASKA EXCEPT FOR CHASE...HAYES AND FRONTIER
   COUNTIES...

AT 855 PM CDT INTENSE THUNDERSTORMS WERE LOCATED ACROSS KEITH COUNTY OF
WEST CENTRAL NEBRASKA FROM ABOUT 35 MILES TO 50 MILES WEST OF NORTH
PLATTE.  PEA TO MARBLE SIZE HAIL HAS BEEN REPORTED WITH THESE STORMS
IN THE LAKE MCCONAUGHY AREA.  THESE STORMS ARE MOVING SOUTHEAST AT 35
MILES AN HOUR AND ARE MOVING TOWARD THE COMMUNITIES OF PAXTON AND
SUTHERLAND.

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

SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.

STAY TUNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE
LATEST UPDATES AND POSSIBLE WARNINGS CONCERNING THIS DANGEROUS
WEATHER SITUATION.

MONSON
Special weather statement, Jul 4, 8:27 PM MDT, 1 hour 3 minutes before
NEZ005-050330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF
827 PM MDT MON JUL 4 1994

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

AT 826 PM MDT RADAR SHOWED A LARGE AREA OF SHOWERS AND CONTINUING TO
EXIST OVER MOST OF CHERRY COUNTY.  THE MORE MODERATE SHOWERS WERE
OCCURING IN THE EASTERN HALF OF CHERRY COUNTY. THE SHOWERS CONTINUE
TO MOVE TO THE NORTHEAST AT 30 MILES PER HOUR.

RESIDENTS SHOULD BE ALERT FOR BRIEF HEAVY RAIN...GUSTY WIND...DEADLY
LIGHTNING AND SOME SMALL HAIL IN THE POSSIBLE EVENT THAT THEY WILL
OCCUR WITH THE STORMS OVER CHERRY COUNTY THROUGH 930 PM MDT (1030 PM CDT)
EASTLACK

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Special weather statement, Jul 4, 8:39 PM MDT, 51 minutes before
NEZ023>025-035>038-057>059-050340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
939 PM CDT (839 PM MDT) MON JUL 4 1994

...SEVERE THUNDERSTORM WATCH UNTIL 2 AM CDT FOR ALL OF WEST CENTRAL
   NEBRASKA...

AT 935 PM CDT THE SEVERE THUNDERSTORM WARNING FOR KEITH COUNTY WAS NO
LONGER IN EFFECT AS THE THUNDERSTORM HAS DECREASED IN INTENSITY.  VERY
STRONG THUNDERSTORMS WERE STILL MOVING ACROSS KEITH COUNTY AND ALSO
MCPHERSON COUNTY.  THE STRONGEST STORMS WERE LOCATED ABOUT 5 MILES
NORTHEAST OF KEYSTONE OR ABOUT 40 MILES WEST NORTHWEST OF NORTH PLATTE
AND ANOTHER ABOUT 5 MILES SOUTH OF TRYON OR ABOUT 25 MILES NORTH
NORTHWEST OF NORTH PLATTE.  THESE STORMS MAY CONTAIN SMALL HAIL ALONG
WITH GUSTY WINDS FROM 35 TO 45 MILES AN HOUR.

THE STORM SOUTH OF TRYON APPEARS TO BE HEADING FOR THE COMMUNITY OF
STAPLETON.  RESIDENTS OF STAPLETON SHOULD BE PREPARED TO TAKE COVER
AS THIS STORM APPROACHES.

IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A
STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

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

MONSON
Special weather statement, Jul 4, 9:26 PM MDT, 4 minutes before
NEZ005-050430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF
926 PM MDT MON JUL 4 1994

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

AT 925 PM MDT RADAR SHOWED A LARGE AREA OF LIGHT SHOWERS CONTINUING TO
EXIST OVER MOST OF CHERRY COUNTY.  THE THE SHOWERS CONTINUE TO MOVE TO
TO THE EAST AT 25 MILES PER HOUR.

RESIDENTS SHOULD BE ALERT FOR BRIEF HEAVY RAIN...GUSTY WIND...DEADLY
LIGHTNING AND SOME SMALL HAIL IN THE POSSIBLE EVENT THAT THEY WILL
OCCUR WITH THE STORMS OVER CHERRY COUNTY THROUGH 1030 PM MDT(1130 PM CDT)
EASTLACK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 6:21 PM MDTSevere Thunderstorm WarningLBFHooker39 min
Jul 4, 7:11 PM MDTSevere Thunderstorm WarningLBFBoyd34 min
Jul 4, 8:59 PM MDTSevere Thunderstorm WarningLBFKeith31 min
Jul 4, 9:22 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt38 min
Jul 4, 9:22 PM MDTSevere Thunderstorm WarningLBFGarfield, Wheeler38 min
Jul 4, 9:54 PM MDTSevere Thunderstorm WarningLBFAntelope, Knox, Pierce66 min
Jul 4, 9:54 PM MDTSevere Thunderstorm WarningLBFBoone, Madison, Platte66 min
Jul 4, 10:04 PM MDTSevere Thunderstorm WarningLBFKeith, McPherson56 min
Jul 4, 10:49 PM MDTSevere Thunderstorm WarningLBFColfax, Cuming, Stanton, Wayne56 min
Jul 4, 10:49 PM MDTSevere Thunderstorm WarningLBFCedar56 min
Jul 4, 10:52 PM MDTSevere Thunderstorm WarningLBFLincoln38 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.