Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 16, NWS Cheyenne, WY

June 20, 1997Kimball County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 20, 1997, 3:27 PM MDT for Kimball County, Nebraska. It was in force for 33 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: Jun 20, 1997, 3:27 PM MDT (21:27 UTC)
Expired: Jun 20, 1997, 4:00 PM MDT
In force: 33 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Kimball County, NE

The radar

The Cheyenne radar (KCYS), 91 km from the middle of the area, began a volume at 21:27 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
Jun 20, 3:50 PM MDT	Hail 1	Kimball, NE
Jun 20, 3:53 PM MDT	Hail 1	Dix, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 2:30 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.5 hours before the alert went out and 153 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3898 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCYS 202128 RRA
TORCYS
NEC105-202200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
327 PM MDT FRI JUN 20 1997

* TORNADO WARNING FOR
  NORTHEASTERN KIMBALL COUNTY IN WESTERN NEBRASKA PANHANDLE

* UNTIL 400 PM MDT

* THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS.

* AT 325 PM MDT...A POSSIBLE TORNADO WAS INDICATED BY DOPPLER RADAR
  11 MILES NORTH OF KIMBALL MOVING EAST AT 40 MPH.

 
DOPPLER WEATHER RADAR INDICATED A D|EVELOPING TORNADO ON THE BANNER
KIMBALL COUNTY LINE JUST WEST HIGHWAY 71.
 
NEVER TRY TO OUTRUN A TORNADO IN YOUR VEHICLE!  STOP...GET OUT...AND
SEEK SHELTER IN A BASEMENT OR LIE FLAT IN A DITCH AND COVER YOUR HEAD.

LRE

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 2:32 PM MDT	Severe Thunderstorm Warning	CYS	Banner	48 min
Jun 20, 2:47 PM MDT	Tornado Warning	CYS	Banner	48 min
Jun 20, 3:18 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	47 min
Jun 20, 3:33 PM MDT	Severe Thunderstorm Warning	CYS	Banner	32 min
Jun 20, 3:39 PM MDT	Tornado Warning	CYS	Box Butte	31 min
Jun 20, 4:02 PM MDT	Tornado Warning	CYS	Cheyenne, Kimball	48 min
Jun 20, 4:08 PM MDT	Tornado Warning	CYS	Box Butte	17 min
Jun 20, 4:13 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	47 min
Jun 20, 4:42 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	33 min
Jun 20, 4:45 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	45 min
Jun 20, 5:20 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	45 min
Jun 20, 5:27 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne, Kimball	43 min

Nearby

Tornado Warnings in Nebraska, 1997 Every tornado warning in 1997 Tornadoes in 1997

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.