Alert archive / Nebraska / Tornado Warnings in 1996

Tornado Warning 11, NWS North Platte, NE

June 21, 1996Frontier County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 21, 1996, 1:46 AM CDT for Frontier County, Nebraska. It was in force for 44 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 21, 1996, 1:46 AM CDT (06:46 UTC)
Expired: Jun 21, 1996, 2:30 AM CDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Frontier County, NE

What was reported inside it

Time	Report	Where	Remark
Jun 21, 2:20 AM CDT	Hail 1	Curtis, 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.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.8 hours before the alert went out and 69 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: 1940 J/kg
Mixed-layer CIN: -271 J/kg
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 104 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 210649
TORLBF
NEC063-210730-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
146 AM CDT FRI JUN 21 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWEST NEBRASKA

   ...EASTERN FRONTIER COUNTY
 
AT 146 AM CDT...A DEVELOPING TORNADO WAS INDICATED BY NORTH PLATTE
DOPPLER RADAR 27 MILES NORTHEAST OF MCCOOK OR 5 MILES EAST SOUTHEAST
OF STOCKVILLE MOVING EAST AT 46 MPH. THE TORNADO IS EXPECTED TO
REMAIN IN OPEN COUNTRY.
 
IF YOU ARE IN THE PATH OF THIS TORNADO...ACT IMMEDIATELY...GO TO A
BASEMENT AND GET UNDER THE STAIRS...A WORKBENCH OR A PIECE OF STURDY
FURNITURE.  IF NO BASEMENT IS AVAILABLE...GO TO AN INTERIOR ROOM SUCH
AS A CLOSET OR BATHROOM ON THE LOWEST FLOOR. AVOID WINDOWS.


JWS

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

Local storm report, Jun 21, 1:24 AM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
123 AM CDT FRI JUN 21 1996

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0120 AM    CURTIS                    NE   0.88 INCH HAIL
06/21/96   FRONTIER

RLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 10:43 PM CDT	Severe Thunderstorm Warning	LBF	Garden	37 min
Jun 21, 12:47 AM CDT	Severe Thunderstorm Warning	LBF	Lincoln	48 min
Jun 21, 1:08 AM CDT	Severe Thunderstorm Warning	LBF	Frontier	62 min
Jun 21, 1:56 AM CDT	Severe Thunderstorm Warning	LBF	Wheeler	44 min
Jun 21, 2:03 AM CDT	Severe Thunderstorm Warning	LBF	Custer	47 min

Nearby

Tornado Warnings in Nebraska, 1996 Every tornado warning in 1996 Tornadoes in 1996

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.