Alert archive / Nebraska / Tornado Warnings in 1987

Tornado Warning 18, NWS Cheyenne, WY

August 6, 1987Kimball County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Aug 6, 1987, 4:35 PM MDT for Kimball County, Nebraska. It was in force for 25 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 6, 1987, 4:35 PM MDT (22:35 UTC)
Expired
Aug 6, 1987, 5:00 PM MDT
In force
25 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Kimball County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Aug 6, 4:37 PM MDTTornado F0Kimball, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.6 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 1987-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1987-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
3312 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
13 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 KBFF 062235
TORBFF
NEC105-062300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
435 PM MDT THU AUG 6 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 500 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

PANHANDLE OF NEBRASKA...KIMBALL AND THE CITY OF KIMBALL

AT 427 PM MDT A TORNADO WAS INDICATED BY RADAR 2 MILES WEST OF
BUSHNELL OR 14 MILES WEST OF KIMBALL NEBRASKA IN THE EXTREME WEST
PART OF KIMBAL COUNTY OF THE SOUTHWEST NEBRASKA PANHANDLE. MOVEMENT
WAS EAST AT 25 MPH.

PERSONS IN THE WARNED AREA SHOULD TAKE SHELTER IN A BASEMENT IF
AVAILABLE.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.  CARS AND MOBILE HOMES SHOULD BE ABANDONED.

PEOPLE IN THE PATH OF THIS TORNADO SHOULD TAKE COVER IMMEDIATELY
TO SAVE YOUR LIVES.

IN ADDITION TO THE THREAT OF TORNADOES...LARGE HAIL...DANGEROUS
LIGHTNING AND VERY HEAVY RAIN ARE LIKELY WITH THIS STORM.

IN ADDITION TO THIS STORM...A VERY STRONG THUNDERSTORM WAS NEAR
KIMBALL NEBRASKA AND MAY ALSO PRODUCE SEVERE WEATHER.

KARR

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 6, 2:38 PM MDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
240 PM MDT THU AUG 6 1987

A SEVERE THUNDERSTORM WATCH FOR SOUTHEAST WYOMING UNTIL 8 PM TONIGHT

AT 230 PM MDT THUNDERSTORMS WITH HEAVY RAINS AND STRONG WINDS WERE OVER
CHEYENNE WYOMING AND ALSO 30 MILES NORTHWEST OF CHEYENNE NEAR HORSE
CREEK.

OTHER STRONG THUNDERSTORMS WERE BETWEEN RAWLINS AND ROCK SPRINGS AND 50
MILES EAST OF DOUGLAS. MOVEMENT WAS TO THE EAST AT 30 MILES AN HOUR.
p
ROGASH
Special weather statement, Aug 6, 3:04 PM MDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
305 PM MDT THU AUG 6 1987

A SEVERE THUNDERSTORM WATCH FOR SOUTHEAST WYOMING UNTIL 8 PM TONIGHT

AT 3 PM MDT A VERY STRONG THUNDERSTORM WITH HEAVY RAINS...HIGH WINDS
AND HAIL WAS 30 MILES NORTH OF CHEYENNE MOVING INTO THE VICINITY OF
HAWK SPRINGS...LA GRANGE AND YODER WYOMING. PERSONS IN THE PATH OF THIS
STORM SHOULD BE PREPARED TO TAKE SHELTER AS IT APPROACHES THEIR AREA.

OTHER STRONG THUNDERSTORMS WERE IN THE VICINITY OF CHEYENNE...LARAMIE
AND RAWLINS.

MOVEMENT WAS TO THE EAST AT 30 MILES AN HOUR.

ROGASH
Special weather statement, Aug 6, 3:35 PM MDT, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
335 PM MDT THU AUG 6 1987

A VERY STRONG THUNDERSTORM WAS INDICATED BY RADAR ABOUT 25 MILES
NORTHEAST OF RAWLINS. THIS STORM WAS MOVING TOWARDS THE NORTHEAST AT
25 MILES AN HOUR.

THE STORM WILL REACH THE SOUTHERN END OF THE SEMINOE RESERVOIR ABOUT
430 PM MDT THIS AFTERNOON.

THIS STORM IS CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. PEOPLE
WHO ARE BOATING ON THE SEMINOE RESERVOIR SHOULD MOVE OFF THE LAKE.
REMEMBER...LIGHTNING IS VERY DANGEROUS AND CAN KILL.

MENTZER
Special weather statement, Aug 6, 4:12 PM MDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
410 PM MDT THU AUG 6 1987

AT 400 PM MDT A SEVERE THUNDERSTORM WITH LARGE HAIL...HIGH WINDS AND
HEAVY RAINS WAS 40 MILES NORTHEAST OF CHEYENNE MOVING INTO THE VICINITY
OF LAGRANGE AND ALBIN. PERSONS IN THE PATH OF THIS STORM SHOULD BE
PREPARED TO TAKE SHELTER.

NUMEROUS THUNDERSTORMS AND RAINSHOWERS COVERED SOUTHEAST WYOMING WITH
OTHER HEAVY ACTIVTY NEAR CHEYENNE...10 TO 30 MILES EAST OF CHEYENNE NEAR
BURNS AND PINE BLUFFS AND 40 MILES SOUTH OF DOUGLAS. THESE STORMS MAY
PRODUCE SMALL HAIL AND HEAVY RAINS.

MOVEMENT WAS TO THE EAST AT 30 MILES AN HOUR.

ROGASH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:03 PM MDTSevere Thunderstorm WarningCYSCheyenne57 min

Nearby

Tornado Warnings in Nebraska, 1987Every tornado warning in 1987Tornadoes in 1987

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.