Alert archive / Nebraska / Tornado Warnings in 1996

Tornado Warning 23, NWS North Platte, NE

July 21, 1996Logan County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 21, 1996, 8:15 PM CDT for Logan County, Nebraska. It was in force for 30 min. 2 reports 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: Jul 21, 1996, 8:15 PM CDT (01:15 UTC)
Expired: Jul 21, 1996, 8:45 PM CDT
In force: 30 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Logan County, NE

What was reported inside it

Time	Report	Where	Remark
Jul 21, 8:20 PM CDT	Hail 0.75	Stapleton, NE
Jul 21, 8:35 PM CDT	Hail 0.75	Gandy, 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, 1.3 hours before the alert went out and 50 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: 2927 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 1149 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 220118
TORLBF
NEC113-220145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
815 PM CDT SUN JUL 21 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 845 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL NEBRASKA

   ...CENTRAL LOGAN COUNTY
 
AT 812 PM CDT...A DEVELOPING TORNADO WAS INDICATED BY NORTH PLATTE
DOPPLER RADAR 32 MILES NORTH NORTHEAST OF NORTH PLATTE OR 7 MILES
NORTH OF STAPLETON MOVING SOUTH SOUTHEAST AT 13 MPH. BY 8:45 PM
CDT THE STORM IS EXPECTED TO BE JUST NORTH OF STAPLETON. THE TORNADO
IS EXPECTED TO REMAIN IN RURAL AREAS.
 
IF YOU ARE IN THE PATH OF THIS TORNADO...ACT IMMEDInATELY...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.

SLM

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, Jul 21, 3:41 PM CDT, 4 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
341 PM CDT SUN JUL 21 1996

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

1110 PM    11 S HAY SPRINGS          NE   1.75 INCH HAIL
07/20/96   SHERIDAN

RLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 7:50 PM CDT	Severe Thunderstorm Warning	LBF	Logan	65 min
Jul 21, 8:57 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	63 min
Jul 22, 6:02 AM CDT	Severe Thunderstorm Warning	LBF	Grant	48 min
Jul 22, 6:16 AM CDT	Tornado Warning	LBF	Arthur, Grant	49 min
Jul 22, 6:50 AM CDT	Severe Thunderstorm Warning	LBF	McPherson	60 min
Jul 22, 7:43 AM CDT	Severe Thunderstorm Warning	LBF	Brown	62 min
Jul 22, 7:46 AM CDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	64 min
Jul 22, 7:55 AM CDT	Severe Thunderstorm Warning	LBF	Cherry	50 min
Jul 22, 8:25 AM CDT	Severe Thunderstorm Warning	LBF	Rock	65 min
Jul 22, 8:30 AM CDT	Severe Thunderstorm Warning	LBF	Lincoln	60 min
Jul 22, 9:12 AM CDT	Severe Thunderstorm Warning	LBF	Frontier	58 min
Jul 22, 9:50 AM CDT	Severe Thunderstorm Warning	LBF	Keith	60 min
Jul 22, 10:12 AM CDT	Severe Thunderstorm Warning	LBF	Deuel	33 min
Jul 22, 10:31 AM CDT	Severe Thunderstorm Warning	LBF	Perkins	64 min
Jul 22, 10:38 AM CDT	Tornado Warning	LBF	Perkins	32 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.