Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 30, NWS North Platte, NE

June 12, 1993Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 12, 1993, 11:52 PM CDT for Custer County, Nebraska. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1993, 11:52 PM CDT (04:52 UTC)
Expired
Jun 13, 1993, 12:30 AM CDT
In force
38 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Custer County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.9 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 1993-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3592 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 1993-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
3592 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1148 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
1.3
Supercell composite
10.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 12, 6:40 PM CDT, 5 hours 12 minutes before
NEZ006-007-012-016-017-130140-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
640 PM CDT SAT JUN 12 1993

...TORNADO WATCHES ARE IN EFFECT FOR ALL OF SOUTHWEST AND
   WEST CENTRAL NEBRASKA THIS EVENING...

A TORNADO WATCH IS IN EFFECT FOR SOUTHWEST NEBRASKA INCLUDING
KEITH..LINCOLN..PERKINS..HAYES..CHASE..FRONTIER..DUNDY..HITCHCOCK
AND RED WILLOW COUNTIES UNTIL 11 PM CDT.

ANOTHER TORNADO WATCH IS IN EFFECT FOR WEST CENTRAL NEBRASKA INCLUDING
GRANT..HOOKER..LOGAN..ARTHUR..MCPHERSON..THOMAS AND CUSTER COUNTIES
UNTIL MIDNIGHT CDT.

AT 638 PM CDT...NO THUNDERSTORMS WERE OCCURRING WITHIN SOUTHWEST AND
WEST CENTRAL NEBRASKA.  HOWEVER..THUNDERSTORMS WERE OCCURRING IN THE
PANHANDLE AND IF THEY CONTINUE MOVING EAST THEY WILL ENTER THE
WESTERN PART OF THE REGION BETWEEN OGALLALA AND HYANNIS AROUND 830 PM
CDT.  OTHER THUNDERSTORMS MAY ALSO DEVELOP RAPIDLY WITHIN SOUTHWEST
AND WEST CENTRAL NEBRASKA IN THE NEXT FEW HOURS.  A FEW OF THESE
THUNDERSTORMS MAY PRODUCE LARGE HAIL..DAMAGING WINDS..VERY HEAVY
RAIN AND DANGEROUS LIGHTNING.

PERSONS SHOULD STAY TUNED TO NOAA WEATHER RADIO..LOCAL RADIO OR
TELEVISION FOR LATER STATEMENTS AND POSSIBLE WARNINGS.  PERSONS
SHOULDZ ALSO BE PREPARED TO TAKE SHELTER IN A STRONG BUILDING
IF THREATENING WEATHER APPROACHES.

ABBAS
Special weather statement, Jun 12, 7:11 PM CDT, 4 hours 41 minutes before
NEZ002-130115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
611 PM MDT SAT JUN 12 1993

...TORNADO WATCH 423 IN EFFECT FOR CHERRY COUNTY UNTIL MIDNIGHT CDT...

AT 710 PM CDT RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM
15 MILES EAST OF MERRIMAN OR 45 MILES WEST OF VALENTINE TO 45 MILES
SOUTHWEST OF MERRIMAN OR 85 MILES SOUTHWEST OF VALENTINE.  THE
STRONGEST STORM WAS 35 MILES SOUTH OF MERRIMAN OR 70 MILES SOUTHWEST
OF VALENTINE IN CHERRY COUNTY OF NORTHCENTRAL NEBRASKA.  ALL STORMS
WERE MOVING TO THE EAST AT 15 MPH.

BRIEF HEAVY RAIN...SMALL HAIL...GUSTY WIND AND DANGERIOUS LIGHTING ARE
POSSIBLE WITH THESE STORMS AS THEY MOVE EAST ACROSS CHERRY COUNTY UNTIL
815 PM CDT.
SALMONS
Special weather statement, Jun 12, 7:36 PM CDT, 4 hours 16 minutes before
NEZ006-007-012-016-017-130140-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
735 PM CDT SAT JUN 12 1993

...TORNADO WATCHES ARE IN EFFECT FOR ALL OF SOUTHWEST AND
   WEST CENTRAL NEBRASKA THIS EVENING...

A TORNADO WATCH WILL BE IN EFFECT UNTIL 11 PM CDT FOR SOUTHWEST
NEBRASKA INCLUDING THE COMMUNITIES OF OGALLALA..NORTH PLATTE..
IMPERIAL AND MCCOOK.  ANOTHER TORNADO WATCH WILL BE IN EFFECT UNTIL
MIDNIGHT CDT FOR WEST CENTRAL NEBRASKA INCLUDING THE COMMUNITIES OF
HYANNIS..MULLEN..TRYON..STAPLETON AND BROKEN BOW.

AT 732 PM CDT...A LINE OF STRONG THUNDERSTORMS IN THE NEBRASKA
PANHANDLE WAS APPROACHING WESTERN GRANT COUNTY AND THE COMMUNITY
OF ASHBY.  THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT 20 MILES
AN HOUR.  THE THUNDERSTORMS MAY PRODUCE SMALL HAIL..GUSTY WINDS
AND VERY HEAVY RAIN WHEN IT MOVES INTO AND THROUGH GRANT COUNTY
DURING THE NEXT HOUR.
<
OTHER THUNDERSTORMS MAY MOVE OUT OF THE PANHANDLE AND INTO
ARTHUR AND KEITH COUNTIES AROUND 830 PM CDT.

PERSONS IN SOUTHWEST AND WEST CENTRAL NEBRASKA SHOULD MONITOR
NOAA WEATHER RADIO..LOCAL RADIO OR TELEVISION FOR FURTHER
STATEMENTS AND POSSIBLE WARNINGS.  THEY SHOULD ALSO BE
PREPARED TO TAKE SHELTER IN A STRONG BUILDING IF THREATENING
WEATHER APPROACHES.

ABBAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 8:41 PM CDTSevere Thunderstorm WarningLBFKeith, Perkins49 min
Jun 12, 9:07 PM CDTTornado WarningLBFPerkins23 min
Jun 12, 10:06 PM CDTSevere Thunderstorm WarningLBFLincoln54 min
Jun 12, 10:49 PM CDTSevere Thunderstorm WarningLBFLogan56 min
Jun 12, 10:49 PM CDTSevere Thunderstorm WarningLBFLincoln71 min
Jun 12, 11:51 PM CDTSevere Thunderstorm WarningLBFCuster39 min
Jun 13, 1:39 AM CDTSevere Thunderstorm WarningLBFLogan36 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1993Every severe thunderstorm warning in 1993

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.