Alert archive / Nebraska / Tornado Warnings in 1989

Tornado Warning 7, NWS Cheyenne, WY

June 25, 1989Morrill County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 25, 1989, 5:44 PM MDT for Morrill County, Nebraska. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1989, 5:44 PM MDT (23:44 UTC)
Expired
Jun 25, 1989, 6:15 PM MDT
In force
31 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Morrill County, NE

The radar

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

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 11.7 hours before the alert went out and 206 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 1989-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 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 1989-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
981 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
223 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 252344
TORBFF
NEC123-260015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
544 PM MDT SUN JUN 25 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE PANHANDLE OF NEBRASKA
      NORTHERN MORRILL

AT 543 PM  MDT A TORNADO WAS INDICATED 30 MILES EAST TO 30 MILES
SOUTHEAST OF SCOTTSBLUFF NEBRASKA...NEAR BRIDGEPORT IN MORRILL
COUNTY...MOVING EAST AROUND 25 MILES AN HOUR.

ALSO...A VERY STRONG THUNDERSTORM WAS 20 MILES SOUTHEAST OF
SCOTTSBLUFF NEBRASKA...JUST WEST OF MORRILL COUNTY. THIS STORM MAY
ALSO BECOME SEVERE.

TAKE SHELTER IN A BASEMENT IF AVAILABLE.  OTHERWISE GO TO A SMALL
INTERIOR ROOM ON THE LOWEST FLOOR.  STAY AWAY FROM WINDOWS.  ABANDON
CARS AND MOBILE HOMES.

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

PFEIFFER

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 25, 1:50 PM MDT, 3 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
150 PM MDT SUN JUN 25 1989

WIDELY SCATTERED THUNDERSTORMS WERE OCCURRING OVER EXTREME SOUTHEAST
WYOMING AT 145 PM.  THE STRONGEST OF THESE STORMS WAS ABOUT 35 MILES
NORTH OF CHEYENNE WITH ANOTHER STRONG CELL NEAR CHUGWATER...OR SOME
45 MILES NORTH OF CHEYENNE.

BRIEF HEAVY RAIN...HAIL AND GUSTY WINDS WILL ACCOMPANY THE STRONGER
THUNDERSTORMS AS THEY MOVE NORTHEAST AT 30 MILES AN HOUR.

THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER SOUTHEAST WYOMING THE
REST OF THIS AFTERNOON.  PEOPLE IN THE SOUTHEAST PART OF THE STATE
SHOULD KEEP AN EYE ON THE SKY AND BE READY TO SEEK SHELTER SHOULD
THREATENING WEATHER APPROACH.

HATTEN
Special weather statement, Jun 25, 4:15 PM MDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
412 PM MDT SUN JUN 25 1989

...SEVERE THUNDERSTORM WATCH UNTIL 9PM MDT FOR NEBRASKA PANHANDLE...

...SEVERE THUNDERSTORM WARNING UNTIL 5PM MDT FOR SCOTTS BLUFF COUNTY...

AT 4 10 PM MDT...A SEVERE THUNDERSTROM WAS LOCATED OVER THE CITIES OF
SCOTTSBLUFF AND GERING MOVING EAST AROUND 30 MILES AN HOUR. ONE INCH
HAIL WAS REPORTED IN GERING...5 MILES SOUTHWEST OF SCOTTS BLUFF COUNTY
AIRPORT...WIH HALF-INCH HAIL BEING REPORTED IN THE CITY OF SCOTTSBLUFF.

OTHER STRONG THUNDERSTORMS WERE BEGINNING TO MOVE ACROSS THE NORTHERN
NEBRASKA PANHANDLE...NORTH OF HARRISON IN SIOUX COUNTY AND ALONG THE
NEBRASKA-SOUTH DAKOTA STATiE LINE.
PFEIFFER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 3:11 PM MDTSevere Thunderstorm WarningCYSScotts Bluff64 min
Jun 25, 3:31 PM MDTTornado WarningCYSScotts Bluff29 min
Jun 25, 4:01 PM MDTSevere Thunderstorm WarningCYSScotts Bluff59 min
Jun 25, 4:52 PM MDTSevere Thunderstorm WarningCYSMorrill, Scotts Bluff68 min
Jun 25, 5:06 PM MDTTornado WarningCYSMorrill39 min

Nearby

Tornado Warnings in Nebraska, 1989Every tornado warning in 1989Tornadoes in 1989

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.