Alert archive / Wyoming / Tornado Warnings in 1997

Tornado Warning 7, NWS Cheyenne, WY

June 14, 1997Laramie County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jun 14, 1997, 5:27 PM MDT for Laramie County, Wyoming. It was in force for 33 min. 3 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 14, 1997, 5:27 PM MDT (23:27 UTC)
Expired: Jun 14, 1997, 6:00 PM MDT
In force: 33 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 23:28 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 14, 5:45 PM MDT	Tornado F0	Hillsdale, WY	Brief touchdown in open country.
Jun 14, 6:05 PM MDT	Hail 0.75	Albin, WY
Jun 14, 6:05 PM MDT	Hail 0.75	Albin, WY

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 14, 4:00 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.5 hours before the alert went out and 202 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: 262 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 75 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 142328 RRA
TORCYS
WYC021-150000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
527 PM MDT SAT JUN 14 1997

* TORNADO WARNING FOR
  EAST CENTRAL AND EASTERN LARAMIE COUNTY IN SOUTHEASTERN WYOMING

* UNTIL 600 PM MDT

* SOME LOCATIONS AFFECTED
  HILLSDALE                            BY 535 PM MDT

* AT 525 PM MDT...A TORNADO WAS INDICATED BY DOPPLER RADAR AND
  SPOTTER REPORTS 15 MILES EAST OF CHEYENNE OR 3 MILES WEST OFR
  HILLSDALE MOVING EAST AT 15 MPH.
 
 
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.

&
WCJIN-WYSE
BAKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 3:25 PM MDT	Severe Thunderstorm Warning	CYS	Converse	45 min
Jun 14, 5:57 PM MDT	Tornado Warning	CYS	Laramie	28 min
Jun 14, 5:59 PM MDT	Tornado Warning	CYS	Laramie	26 min

Nearby

Tornado Warnings in Wyoming, 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.