Alert archive / Nebraska / Tornado Warnings in 1994

Tornado Warning 21, NWS North Platte, NE

July 12, 1994Arthur County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 12, 1994, 6:30 PM MDT for Arthur County, Nebraska. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1994, 6:30 PM MDT (00:30 UTC)
Expired
Jul 12, 1994, 7:00 PM MDT
In force
30 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Arthur County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 104 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 1994-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2329 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 1994-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 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
2329 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.4
Supercell composite
13.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 130030
TORLBF
NEC005-130100-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
730 PM CDT (630 PM MDT) TUE JUL 12 1994
 
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  800 PM CDT (700 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL NEBRASKA
 
   ...CENTRAL ARTHUR COUNTY
 
AT 630 PM MDT RADAR INDICATED A TORNADO 2 MILES WEST OF ARTHUR MOVING TO
THE SOUTHEAST. ARTHUR IS 50 MILES WEST NORTHWEST OF NORTH PLATTE.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
 
FAUCETTE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 6:57 PM MDTSevere Thunderstorm WarningLBFArthur, Keith48 min
Jul 12, 7:47 PM MDTSevere Thunderstorm WarningLBFKeith58 min
Jul 12, 8:26 PM MDTSevere Thunderstorm WarningLBFLincoln54 min
Jul 13, 12:03 AM MDTFlash Flood WarningLBFCedar, Knox, Madison, Pierce, Stanton, Wayne3 hr

Nearby

Tornado Warnings in Nebraska, 1994Every tornado warning in 1994Tornadoes in 1994

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.