Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 76, NWS North Platte, NE

August 3, 1990Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 3, 1990, 2:34 PM MDT for Perkins County, Nebraska. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Aug 3, 1990, 2:34 PM MDT (20:34 UTC)
Expired
Aug 3, 1990, 3:30 PM MDT
In force
56 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Perkins County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.6 hours before the alert went out and 93 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 1990-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 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 12:00Z on 1990-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
396 J/kg
Mixed-layer CIN
-205 J/kg
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
114 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 032034
SVRLBF
NEC135-032130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
234 PM MDT FRI AUG 3 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 330 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTHWEST PART OF NEBRASKA
      EASTERN PERKINS

AT 230 PM MDT A SEVERE THUNDERSTORM WAS DETECTED BY RADAR 5 MILES
WEST OF ELSIE WHICH IS 36 MILES WEST SOUTHWEST OF NORTH PLATTE.
THE THUNDERSTORM WAS MOVING SOUTHEAST AT 20 MILES PER HOUR.

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.

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

 ABBAS 2035Z

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, Aug 3, 1:47 PM MDT, 47 minutes before
NEZ006-007-012-032045-

WEATHER UPDATE AND SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
245 PM CDT TUE AUG 3 1990

AT 240 PM CDT...AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED FROM
5 MILES SOUTHEAST OF ROSCOE TO NEAR PAXTON OR ABOUT 35 MILES WEST OF
NORTH PLATTE. THESE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN
..GUSTY WINDS..AND HAIL. THE THUNDERSTORMS ARE MOVING SOUTHEAST AT ABOUT
20 MILES PER HOUR AND WILL MOVE INTO WESTERN LINCOLN COUNTY WITHIN THE
NEXT HOUR.

OTHER THUNDERSTORMS WERE LOCATED IN A LINE FROM 10 MILES NORTHEAST  OF
NORTH PLATTE TO NEAR SARGENT IN CUSTER COUNTY WHICH IS 65 MILES
NORTHEAST OF NORTH PLATTE. THESE THUNDERSTORMS MAY ALSO PRODUCE4 BRIEF
HEAVY RAINS AND GUSTY WINDS. THEY WERE MOVING SOUTHEAST AT 20 MILES PER
HOUR.

PERSONS IN THESE AREAS SHOULD BE AWARE OF FURTHER THUNDERSTORM
DEVELOPMENT AND POSSIBLE SEVERE WEATHER.  ABBAS
Special weather statement, Aug 3, 1:48 PM MDT, 46 minutes before
NEZ006-007-012-032045-

WEATHER UPDATE AND SPECIAL WEATHER STATEMENT..CORECTION..
NATIONAL WEATHER SERVICE NORTH PLATTE NE
245 PM CDT FRI AUG 3 1990

AT 240 PM CDT...AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED FROM
5 MILES SOUTHEAST OF ROSCOE TO NEAR PAXTON OR ABOUT 35 MILES WEST OF
NORTH PLATTE. THESE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN
..GUSTY WINDS..AND HAIL. THE THUNDERSTORMS ARE MOVING SOUTHEAST AT ABOUT
20 MILES PER HOUR AND WILL MOVE INTO WESTERN LINCOLN COUNTY WITHIN THE
NEXT HOUR.

OTHER THUNDERSTORMS WERE LOCATED IN A LINE FROM 10 MILES NORTHEAST  OF
NORTH PLATTE TO NEAR SARGENT IN CUSTER COUNTY WHICH IS 65 MILES
NORTHEAST OF NORTH PLATTE. THESE THUNDERSTORMS MAY6 ALSO PRODUCE BRIEF
HEAVY RAINS AND GUSTY WINDS. THEY WERE MOVING SOUTHEAST AT 20 MILES PER
HOUR.

PERSONS IN THESE AREAS SHOULD BE AWARE OF FURTHER THUNDERSTORM
DEVELOPMENT AND POSSIBLE SEVERE WEATHER.  ABBAS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 3:04 PM MDTSevere Thunderstorm WarningLBFMadison56 min
Aug 3, 3:17 PM MDTSevere Thunderstorm WarningLBFLincoln43 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990

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.