Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 24, NWS North Platte, NE

June 1, 1990Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 1, 1990, 11:12 PM CDT for Custer County, Nebraska. It was in force for 63 min.

The area

The counties it named.

The facts

Issued: Jun 1, 1990, 11:12 PM CDT (04:12 UTC)
Expired: Jun 2, 1990, 12:15 AM CDT
In force: 63 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Custer 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, 4.2 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1876 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1838 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 020412
SVRLBF
NEC041-020515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1112 PM CDT FRI JUN 1 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1215 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE CENTRAL PART OF NEBRASKA
      CENTRAL AND NORTHEAST CUSTER

AT 1105 PM CDT...RADAR DETECTED SEVERE THUNDERSTORMS OVER
CENTRAL CUSTER COUNTY OF NEBRASKA.  THESE THUNDERSTORMS WERE
IN THE VICINITY OF BROKEN BOW...WHICH IS ABOUT 50 MILES EAST
NORTHEAST OF NORTH PLATTE.

THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

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.

 THESE THUNDERSTORMS WILL BE MOVING INTO NORTHEAST CUSTER COUNTY
 BY 1125 PM CDT.  RADAR INDICATED HAIL WITH THESE STRONG
 THbUNDERSTORMS.

 SJC 0410Z

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, Jun 1, 7:16 PM CDT, 3 hours 56 minutes before

NEZ006-007-012-016-020100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
715 PM CDT FRI JUN 1 1990

...TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM CDT FOR SOUTHWEST
   NEBRASKA...

AT 700 PM CDT THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED
JUST SOUTHEAST OF BRADY...OR ABOUT 20 MILES EAST SOUTHEAST OF
NORTH PLATTE NEBRASKA.  THESE THUNDERSTORMS PRODUCED PEA TO
MARBLE SIZE HAIL IN BRADY AND NEAR MAXWELL.

THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES PER HOUR.

OTHER SCATTERED THUNDERSTORMS WERE LOCATED FROM SOUTHEAST LINCOLN
COUNTY NORTH THROUGH EASTERN THOMAS COUNTY.  ANOTHER THUNDERSTORM
HAD DEVELOPED OVER NORTHERN DUNDY COUNTY.

THESE THUNDERSTORMS WERE ALSO MOVING NORTHEAST AT 35 MILES PER HOUR.

THE SEVERE THUNDERSTORM WARNING FOR EASTERN LINCOLN COUNTY WAS
ALLOWED TO EXPIRE AT 700 PM CDT.

ABBAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 8:05 PM CDT	Tornado Warning	LBF	Custer	25 min
Jun 1, 8:15 PM CDT	Tornado Warning	LBF	Custer	45 min
Jun 1, 8:31 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	29 min
Jun 1, 8:32 PM CDT	Tornado Warning	LBF	Custer	28 min
Jun 1, 8:58 PM CDT	Tornado Warning	LBF	Custer	32 min
Jun 1, 8:59 PM CDT	Tornado Warning	LBF	Loup	31 min
Jun 1, 9:17 PM CDT	Tornado Warning	LBF	Perkins	28 min
Jun 1, 9:21 PM CDT	Severe Thunderstorm Warning	LBF	Keith	54 min
Jun 1, 9:38 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt	42 min
Jun 1, 9:53 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	67 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990 Every 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.