Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 84, NWS North Platte, NE

August 10, 1990Frontier County, Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 10, 1990, 10:38 PM CDT for Frontier County, Lincoln County, Nebraska. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Aug 10, 1990, 10:38 PM CDT (03:38 UTC)
Expired
Aug 10, 1990, 11:45 PM CDT
In force
67 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Frontier County, NE, Lincoln 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 00:00Z, 3.6 hours before the alert went out and 38 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 1990-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1520 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 1990-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 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
1520 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
2035 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
16.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 110338
SVRLBF
NEC063-111-110445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1038 PM CDT FRI AUG 10 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF NEBRASKA
      NORTHERN FRONTIER...SOUTHEAST LINCOLN

...CORRECTION...
AT 1025 PM CDT RADAR INDICATED ASEVERE THUNDERSTORM 15 MILES
SOUTHEAST OF NORTH PLATTE MOVING INTO FRONTER COUNTY IN THE VICINTY
OF MOOREFIELD WHICH IS 30 MILES SOUTHEAST OF NORTH PLATTE.  THE
STORM WAS MOVING SOUTH-SOUTHEAST AT 30 MPH.

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.

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

 WALAWENDER

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 10, 5:39 PM CDT, 4 hours 59 minutes before
NEZ012-102330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
435 PM MDT FRI AUG 10 1990

...DEVELOPING THUNDERSTORMS IN SOUTHWEST NEBRASKA.

AT 430 PM CDT...AN INTENSE THUNDERSTORM HAD DEVELOPED OVER KEITH COUNTY
IN SOUTHWEST NEBRASKA. THE STORM WAS LOCATED ABOUT 5 MILES EAST OF
OGALLALA OR ABOUT 46 MILES WEST OF NORTH PLATTE NEBRASKA. THIS
THUNDERSTORM WAS MOVING EAST AT ABOUT 15 MPH. DANGEROUS LIGHTNING...
BRIEF HEAVY RAIN AND POSSIBLE SMALL HAIL MAY BE ASSOCIATED WITH THIS
STORM. PERSONS IN THE PATH OF THIS STORM SHOULD THE WEATHER SITUATION
CAREFULLY.

OTHER STRONG THUNDERSTORMS WERE DEVELOPING IN NORTHEAST LINCOLN COUNTY...
SOUTH LOGAN COUNTY...AND SOUTHWEST CUSTER COUNTY. THESE STORMS WERE
MOVING EAST AT 15 TO 20 MPH.

SMALLFIELD
Special weather statement, Aug 10, 7:02 PM CDT, 3 hours 36 minutes before
NEZ006-007-012-110100

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
705 PM MDT FRI AUG 10 1990

...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST AND WEST CENTRAL NEBRASKA
UNTI 11 PM CDT.

AT 655 PM CDT...INTENSE THUNDERSTORMS WERE IN LINCOLN...KEITH AND PERKINS
COUNTIES OF SOUTHWEST NEBRASKA. THEY WERE LOCATED 10 MILES NORTHEAST OF
NORTH PLATTE NE 5 MILES NORTH OF SUTHERLAND NE OR 20 MILES WEST OF
NORTH PLATTE NE AND 3 MILES WEST OF OGALLALA NE TO 5 MILES SOUTHEAST OF
BRULE NE OR OR ABROUT 45 TO 50 WEST TO SOUTHWEST OF NORTH PLATTE NE.
OGALLALA NE REPORTED HEAVY RAIN AND STRONG WINDS BUT NO DAMAGE.

OTHER STRONG THUNDERSTORMS WERE IN THE NORTHWEST CORNER OF THOMAS COUNTY
10 MILES NORTHWEST OF THEDFORD OR ABOUT 55 MILES NORTH OF NORTH PLATTE
NE.
THE STORMS WERE MOVING EAST SOUTHEAST AT 20 TP 30 MPH.
SMALLFIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 7:35 PM CDTSevere Thunderstorm WarningLBFBlaine55 min
Aug 10, 7:59 PM CDTSevere Thunderstorm WarningLBFLogan, Thomas61 min
Aug 10, 8:31 PM CDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan, McPherson59 min
Aug 10, 8:48 PM CDTSevere Thunderstorm WarningLBFChase57 min
Aug 10, 9:21 PM CDTSevere Thunderstorm WarningLBFLincoln69 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.