Alert archive / Nebraska / Tornado Warnings in 1996

Tornado Warning 39, NWS North Platte, NE

August 10, 1996Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 10, 1996, 6:27 PM CDT for Custer County, Nebraska. It was in force for 33 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: Aug 10, 1996, 6:27 PM CDT (23:27 UTC)
Expired: Aug 10, 1996, 7:00 PM CDT
In force: 33 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Custer County, NE

The radar

The North Platte radar (KLNX), 94 km from the middle of the area, began a volume at 23:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Aug 10, 6:45 PM CDT	Hail 1	Oconto, 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 12:00Z, 11.5 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-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: 82 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 102327
TORLBF
NEC041-110000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
627 PM CDT SAT AUG 10 1996

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL NEBRASKA

   ...SOUTHERN CUSTER COUNTY
 
...AT 626 PM CDT NORTH PLATTE DOPPLER RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS EXTENDING FROM OCONTO TO 20 WEST OF OCONTO...
OR FROM 16 MILES SOUTH OF BROKEN BOW TO 30 MILES SOUTHWEST OF BROKEN
BOW.  A POSSIBLE TORNADO WAS LOCATED IN THE STORM WHICH IS LOCATED
OVER OCONTO.

THE STORMS WERE MOVING TO THE SOUTH-SOUTHEAST AT 15 MPH...AND WILL
MOVE SOUTH OUT OF CUSTER COUNTY BY 655 PM CDT.

THE TORNADIC STORM NEAR OCONTO IS AN ESPECIALLY DANGEROUS STORM.  IF
YOU LIVE IN OR NEAR OCONTO...TAKE COVER NOW.
 
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.

PARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 8:51 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	64 min
Aug 9, 10:09 PM CDT	Severe Thunderstorm Warning	LBF	Garden	46 min
Aug 10, 3:09 PM CDT	Severe Thunderstorm Warning	LBF	Holt	51 min
Aug 10, 4:02 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	63 min
Aug 10, 4:32 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	48 min
Aug 10, 4:56 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	64 min
Aug 10, 5:19 PM CDT	Tornado Warning	LBF	Loup	31 min
Aug 10, 5:23 PM CDT	Severe Thunderstorm Warning	LBF	Custer	62 min
Aug 10, 5:55 PM CDT	Tornado Warning	LBF	Custer	35 min
Aug 10, 6:10 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	50 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; radar from the NEXRAD Level II archive.