Alert archive / Nebraska / Tornado Warnings in 1996

Tornado Warning 21, NWS Omaha, NE

June 19, 1996Antelope County, Knox County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 19, 1996, 3:21 PM CDT for Antelope County, Knox County, Nebraska. It was in force for 54 min. 5 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: Jun 19, 1996, 3:21 PM CDT (20:21 UTC)
Expired: Jun 19, 1996, 4:15 PM CDT
In force: 54 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Antelope County, NE, Knox County, NE

The radar

The Sioux Falls radar (KFSD), 166 km from the middle of the area, began a volume at 20:22 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
Jun 19, 3:30 PM CDT	Tornado F0	Verdigre, NE
Jun 19, 3:40 PM CDT	Tornado F0	Orchard, NE
Jun 19, 3:43 PM CDT	Hail 1.75	Orchard, NE
Jun 19, 4:15 PM CDT	Hail 1.75	Neligh, NE
Jun 19, 4:15 PM CDT	Thunderstorm Wind 52	Neligh, 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

Omaha, NE (KOAX), launched 12:00Z, 8.4 hours before the alert went out and 180 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: 1611 J/kg
Mixed-layer CIN: -209 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 192021
TOROMA
NEC003-107-192115-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
321 PM CDT WED JUN 19 1996
 
THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEBRASKA
 
   ...NORTHERN ANTELOPE COUNTY...SOUTHWESTERN KNOX COUNTY
 
AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO 15 MILES EAST OF O'NEIL MOVING TO THE EAST SOUTHEAST AT 20 MILES
AN HOUR. TOWNS IN THE PATH OF THIS STORM INCLUDE ROYAL...ORCHARD...AND
WINNETOON.
 
 
 
PEOPLE IN THE PATH OF THIS TORNADO SHOULD TAKE COVER IMMEDIATELY TO
SAVE YOUR LIVES.  MOVE TO A STURDY BUILDING...A BASEMENT IF POSSIBLE
...AND COVER YOUR HEAD FROM FLYING DEBRIS.
 
 
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 2:28 PM CDT	Severe Thunderstorm Warning	OAX	Knox	62 min
Jun 19, 3:53 PM CDT	Tornado Warning	OAX	Antelope	52 min
Jun 19, 4:21 PM CDT	Tornado Warning	OAX	Madison, Pierce	54 min
Jun 19, 4:58 PM CDT	Tornado Warning	OAX	Stanton, Wayne	47 min
Jun 19, 5:16 PM CDT	Tornado Warning	OAX	Madison	14 min
Jun 19, 5:23 PM CDT	Severe Thunderstorm Warning	OAX	Stanton	52 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.