Alert archive / Nebraska / Tornado Warnings in 1993

Tornado Warning 11, NWS North Platte, NE

July 12, 1993Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 12, 1993, 6:36 PM MDT for Cherry County, Nebraska. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1993, 6:36 PM MDT (00:36 UTC)
Expired
Jul 12, 1993, 7:15 PM MDT
In force
39 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Cherry County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.6 hours before the alert went out and 163 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 1993-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1618 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 1993-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.1939587897Sfc1 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
1618 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 130036
TORVTN
NEC031-130115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
636 PM MDT MON JUL 12 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 715 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      WESTERN CHERRY

AT 635 PM MDT A TORNADO WAS LOCATED 5 MILES SOUTHWEST OF MERRIMAN
IN WESTERN CHERRY COUNTY.

MOVEMENT WAS EAST AT 35 MPH.

GIVE REPORTS OF SEVERE WEATHER OR DAMAGE TO A LAW ENFORCEMENT AGENCY
FOR RELAY TO THE NATIONAL WEATHER SERVICE.

KYLE

What forecasters said that day

The local office's own words before this tornado 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, Jul 12, 5:26 PM MDT, 1 hour 10 minutes before
NEZ006-012-016-017-130020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
525 PM MDT MON JUL 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11PM MDT
   OR MIDNIGHT CDT...

NEARLY ALL OF SOUTHWEST AND WEST CENTRAL NEBRASKA IS IN A SEVERE
THUNDERSTORM WATCH UNTIL 11 PM MDT OR MIDNIGHT CDT.  COMMUNITIES
IN SOUTHWEST AND WEST CENTAL INCLUDED IN THE WATCH ARE OGALLALA..
NORTH PLATTE..IMPERIAL..MCCOOK AND BROKEN BOW.

AT 522 PM MDT...A LINE OF THUNDERSTORMS WAS MOVING INTO EXTREME
SOUTHWEST NEBRASKA.  THE THUNDERSTORMS WERE LOCATED FROM 20 MILES
WEST SOUTHWEST OF IMPERIAL TO 5 MILES WEST OF HAIGLER OR 80 MILES
SOUTHWEST TO 95 MILES SOUTHWEST OF NORTH PLATTE.  A FEW OF THESE
STORMS WILL PRODUCE A BRIEF PERIOD OF HEAVY RAIN..GUSTY WINDS AND
SMALL HAIL AS THEY MOVE EAST AT 25 MILES AN HOUR.
ABBAS
Special weather statement, Jul 12, 5:31 PM MDT, 1 hour 5 minutes before
NEZ006-012-016-017-130020-

SPECIAL WEATHER STATEMENT...CORRECTED FIRST PARAGRAPH...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
525 PM MDT MON JUL 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 11PM MDT
   OR MIDNIGHT CDT...

NEARLY ALL OF SOUTHWEST AND WEST CENTRAL NEBRASKA IS IN A SEVERE
THUNDERSTORM WATCH UNTIL 11 PM MDT OR MIDNIGHT CDT.  COMMUNITIES
IN SOUTHWEST AND WEST CENTRAL NEBRASKA INCLUDED IN THE WATCH ARE
OGALLALA..NORTH PLATTE..IMPERIAL..MCCOOK AND BROKEN BOW.

AT 522 PM MDT...A LINE OF THUNDERSTORMS WAS MOVING INTO EXTREME
SOUTHWEST NEBRASKA.  THE THUNDERSTORMS WERE LOCATED FROM 20 MILES
WEST SOUTHWEST OF IMPERIAL TO 5 MILES WEST OF HAIGLER OR 80 MILES
SOUTHWEST TO 95 MILES SOUTHWEST OF NORTH PLATTE.  A FEW OF THESE
STORMS WILL PRODUCE A BRIEF PERIOD OF HEAVY RAIN..GUSTY WINDS AND
SMALL HAIL AS THEY MOVE EAST AT 25 MILES AN HOUR.
ABBAS
Special weather statement, Jul 12, 6:00 PM MDT, 36 minutes before
NEZ006-007-012-016-017-130020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
600 PM MDT MON JUL 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF SOUTHWEST
   AND WEST CENTRAL NEBRASKA UNTIL 11 PM MDT OR MIDNIGHT CDT...

AT 555 PM MDT...THUNDERSTORMS WERE MOVING ACROSS EXTREME SOUTHWEST
NEBRASKA.  THE THUNDERSTORMS WERE LOCATED FROM 10 MILES WEST SOUTHWEST
OF IMPERIAL TO 5 MILES WEST OF BENKELMAN.  THE STRONGEST THUNDERSTOM
WAS LOCATED 15 MILES SOUTHWEST OF IMPERIAL. THIS STRONG THUNDERSTORM
MAY PRODUCE A BRIEF PERIOD OF VERY HEAVY RAIN..GUSTY WINDS AND SMALL
HAIL AS IT MOVES EAST AT 25 MILES AN HOUR.

IMPERIAL AND BENKELMAN ARE 60 MILES SOUTHWEST AND 80 MILES SOUTHWEST
OF NORTH PLATTE.

ABBAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 7:34 PM MDTSevere Thunderstorm WarningLBFCherry56 min
Jul 12, 8:31 PM MDTSevere Thunderstorm WarningLBFCherry57 min
Jul 13, 1:13 AM MDTSevere Thunderstorm WarningLBFMadison62 min
Jul 13, 1:13 AM MDTSevere Thunderstorm WarningLBFBoone32 min
Jul 13, 6:42 AM MDTFlash Flood WarningLBFBoyd, Knox3 hr

Nearby

Tornado Warnings in Nebraska, 1993Every tornado warning in 1993Tornadoes 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.