Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 52, NWS North Platte, NE

June 30, 1992Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 30, 1992, 7:04 PM MDT for Grant County, Nebraska. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 30, 1992, 7:04 PM MDT (01:04 UTC)
Expired
Jun 30, 1992, 7:30 PM MDT
In force
26 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Grant County, NE

What was reported inside it

TimeReportWhereRemark
Jun 30, 7:22 PM MDTHail 1.75Grant, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.1 hours before the alert went out and 129 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 1992-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2015 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 1992-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
2015 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1798 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.4
Supercell composite
9.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 010104
SVRLBF
NEC075-010130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
704 PM MDT TUE JUN 30 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      EASTERN GRANT

AT 652 PM MDT DIME SIZED TO OCCSIONAL GOLF BALL SIZED HAIL WAS
RAEPORTED AT HYANNIS NEBRASKA OR 75 MILES NORTHWEST OF
NORTH PLATTE NEBRSKA. THIS STORM WAS PRODUCING THIS HAIL WAS MOVING
EST SOUTHEST AT 35 MPH.

...TORNADO WATCH UNTIL 9 PM MDT..

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!!

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.

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 30, 6:37 PM MDT, 27 minutes before
NEZ006-010130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
630 PM MDT TUE JUN 30 1992

...THUNDERSTORMS WERE MOVING INTO GRANT COUNTY NEBRASKA...
...TORNADO WATCH UNTIL 9 PM MDT...

AT 630 PM MDT THUNDERSTORMS WERE MOVING INTO GRANT COUNTY NEAR
THE CITY OF WHITMAN NEBRASKA OR 75 MILES NORTHWEST OF NORTH PLATTE.
THUNDERSTORM HAS BEEN MOVING EAST SOUTHEAST AT 35 MILES PER HOUR.

BRIEF HEAVY RAIN...HAIL..GUSTY SURFACE WIND ANOD DANGEROUS LIGHTNING
LIGHTNING...HAS THIS THUNDERSTORMS MOVE ACROSS THE NORTHERN
PORTIONS OF GRANT COUNTY.

IF THREATENING WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF
SAFETY.
HETZKE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 6:14 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 6:44 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 7:14 PM MDTSevere Thunderstorm WarningLBFCherry31 min
Jun 30, 7:37 PM MDTSevere Thunderstorm WarningLBFHooker, McPherson53 min
Jun 30, 8:36 PM MDTSevere Thunderstorm WarningLBFHooker, McPherson54 min
Jun 30, 10:04 PM MDTSevere Thunderstorm WarningLBFMcPherson56 min
Jun 30, 10:52 PM MDTSevere Thunderstorm WarningLBFLogan33 min
Jun 30, 11:04 PM MDTSevere Thunderstorm WarningLBFMcPherson56 min
Jun 30, 11:57 PM MDTSevere Thunderstorm WarningLBFMcPherson63 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.