Alert archive / Nebraska / Tornado Warnings in 1987

Tornado Warning 6, NWS Cheyenne, WY

June 8, 1987Deuel County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 8, 1987, 2:58 PM MDT for Deuel County, Nebraska. It was in force for 32 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
Jun 8, 1987, 2:58 PM MDT (20:58 UTC)
Expired
Jun 8, 1987, 3:30 PM MDT
In force
32 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Deuel 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
Jun 8, 3:00 PM MDTTornado F1Deuel, 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.0 hours before the alert went out and 145 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, N. Platte/Lee Bi, NE at 12:00Z on 1987-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 735 joules per kilogram.LCLLFCEL10008507005003002001001 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, N. Platte/Lee Bi, NE at 12:00Z on 1987-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 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
735 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 082058
TORBFF
NEC049-082130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
258 PM MDT MON JUN 8 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 330 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

PANHANDLE OF NEBRASKA...DEUEL

AT 251PM MDT A FUNNEL CLOUD WAS REPORTED BY THE DEUEL COUNTY
DEPUTY SHERIFF 7 MILES NORTHEAST OF CHAPPELL OR 30 MILES EAST OF
SIDNEY IN THE SOUTHEAST NEBRASKA PANHANDLE. MOVEMENT WAS NORTH AT
10 MPH.

IF YOU ARE IN THE PATH OF THIS TORNADO..YOU SHOULD GO TO A BASEMENT
SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR
A REINFORCED BUILDING.

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

 ALSO...SOME LOWLAND FLOODING MAY DEVELOP FROM THE VERY HEAV*Y RAINS
OF THIS SLOW MOVING STORM.

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, Jun 8, 11:11 AM MDT, 3 hours 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1105 AM MDT MON JUNE 8 1987

...FLASH FLOOD WATCH CONTINUES FOR SOUTHEAST WYOMING LATE THIS
   AFTERNOON AND EVENING...

ABUNDANT MOISTURE IS AVIABLE IN SOUTHEAST WYOMING FOR POSSIBLE
HEAVY DOWNPOURS THROUGH THE EVENING.

THE RAIN THAT FELL YESTERDAY AND LAST NIGHT SATURATED THE GROUND OVER
SOUTHEAST WYOMING. ADDITIONAL RAIN TODAY WILL POSE A FLASH FLOODING
THREAT. THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WATCH
FROM 3 PM THIS AFTERNOON UNTIL 12 MIDNIGHT TONIGHT FOR THE FOLLOWING
COUNTIES IN SOUTHEAST WYOMING...ALBANY...LARAMIE...PLATTE...AND GOSHEN.
PEOPLE IN THE WATCH AREA SHOULD KEEP INFORMED ABOUT THE DnEVELOPING
WEATHER.

STRONG THUNDERSTORMS WILL AGAIN DEVELOP OVER THE EASTERN HALF OF
WYOMING THIS AFTERNOON. HAIL...GUSTY WINDS...AND FREQUENT LIGHTNING
WILL ACCOMPANY SOME OF THESE STORMS.

SIGLER
Special weather statement, Jun 8, 2:56 PM MDT, 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
255 PM MDT MON JUN 8 1987

THE FLASH FLOOD WATCH FOR SOUTHEAST WYOMING HAS BEEN CANCELLED.

ALTHOUGH THE MOISTURE NEEDED FOR HEAVY RAINS WAS STILL AROUND...A LARGE
AREA OF CLOUDS CONTINUES TO BLANKET SOUTHEAST WYOMING.  WITH VERY
LITTLE SUNSHINE TO WARM THINGS UP...HEAVY THUNDERSTORMS DO NOT APPEAR
LIKELY.

HENCE...THE FLASH FLOOD WATCH HAS BEEN CANCELLED.  THERE WERE SOME
THUNDERSTORMS IN SOUTH CENTRAL AND SOUTHWEST WYOMING AT 245 PM HOWEVER
...MAINLY FROM EVANSTON EAST INTO THE SNOWY RANGE.

A FEW OF THESE STORMS COULD CONTAIN SOME HEAVY RAIN AND DEADLY
LIGHTNING...AND POSSIBLY SOME SMALL HAIL.  PEOPLE IN SOUTH CENT`RAL
AND SOUTHWEST WYOMING SHOULD STAY ALERT TO THE WEATHER CONDITIONS...
AND BE READY TO MOVE TO A SAFE PLACE IF THREATENING WEATHER APPROACHES.
DASELER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 2:44 PM MDTSevere Thunderstorm WarningCYSDeuel46 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.