Alert archive / Nebraska / Tornado Watches in 1997

Tornado Watch 433

June 14, 19979 counties in Nebraska; 7 counties in South Dakota; 8 counties in Wyoming

The Storm Prediction Center issued this tornado watch at Jun 14, 1997, 4:00 PM MDT for 9 counties in Nebraska; 7 counties in South Dakota; 8 counties in Wyoming. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 14, 1997, 4:00 PM MDT (22:00 UTC)
Expired: Jun 14, 1997, 10:00 PM MDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 24 counties

Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Butte County, SD, Custer County, SD, Fall River County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Campbell County, WY, Converse County, WY, Crook County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 114 km from the middle of the area, began a volume at 22:02 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.

Warnings issued inside it

16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 14, 4:18 PM MDT	Flash Flood Warning	UNR	Meade	5 hr
Jun 14, 4:22 PM MDT	Tornado Warning	UNR	Meade	33 min
Jun 14, 4:50 PM MDT	Severe Thunderstorm Warning	UNR	Butte	50 min
Jun 14, 4:53 PM MDT	Tornado Warning	UNR	Meade, Pennington	32 min
Jun 14, 5:27 PM MDT	Tornado Warning	UNR	Meade, Pennington	33 min
Jun 14, 5:27 PM MDT	Tornado Warning	CYS	Laramie	33 min
Jun 14, 5:31 PM MDT	Severe Thunderstorm Warning	UNR	Crook, Weston	49 min
Jun 14, 5:38 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence	32 min
Jun 14, 5:54 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Harding	46 min
Jun 14, 5:57 PM MDT	Tornado Warning	CYS	Kimball	28 min
Jun 14, 5:59 PM MDT	Tornado Warning	CYS	Kimball	26 min
Jun 14, 6:01 PM MDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	64 min
Jun 14, 6:17 PM MDT	Tornado Warning	CYS	Banner, Kimball	33 min
Jun 14, 6:33 PM MDT	Tornado Warning	CYS	Cheyenne	32 min
Jun 14, 6:50 PM MDT	Tornado Warning	CYS	Kimball	15 min
Jun 14, 7:37 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	63 min

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.0 hours before the alert went out and 106 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: 1285 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 172 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.

402 
WWUS9 KMKC 142122
SEL3  
MKC WW 142122
WYZ000-NEZ000-SDZ000-150400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 433
STORM PREDICTION CENTER NORMAN OK
322 PM MDT SAT JUN 14 1997

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   EASTERN WYOMING                            
   WESTERN NEBRASKA                           
   WESTERN SOUTH DAKOTA                       

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
1000 PM MDT.

TORNADOES...HAIL TO 2 1/2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 85 STATUTE MILES EAST AND WEST
OF A LINE FROM 55 MILES NORTHEAST OF MOORCROFT WYOMING TO 45 MILES
EAST SOUTHEAST OF CHEYENNE WYOMING.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 428...WW 429...WW
430...WW 431...WW 432...

DISCUSSION...UPSLOPE FLOW AND LOW LEVEL CONVERGENCE ALONG SURFACE
TROFF OCCURRING WHERE AIR MASS VERY UNSTABLE PER 3000 TO 4000 J/KG
CAPES. 30 TO 40 KT SOUTHWESTERLY MID LEVEL FLOW WILL RESULT IN
FAVORABLE SHEAR FOR SUPERCELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 1/2 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500.  MEAN STORM MOTION VECTOR 23035.


...ROGASH

445,1021 405,1022 405,1053 445,1054

Nearby

Tornado Watches in Nebraska, 1997 Tornado Watches in Wyoming, 1997 Tornado Watches in South Dakota, 1997 Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.