Alert archive / Nebraska / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Cheyenne, WY

May 30, 1989Banner County, Morrill County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 30, 1989, 7:48 PM MDT for Banner County, Morrill County, Nebraska. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
May 30, 1989, 7:48 PM MDT (01:48 UTC)
Expired
May 30, 1989, 8:45 PM MDT
In force
57 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Banner County, NE, 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 00:00Z, 1.8 hours before the alert went out and 196 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 00:00Z on 1989-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1989-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 square meters per square second.1939587897117Sfc1 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
172 J/kg
Mixed-layer CIN
-268 J/kg
Mixed-layer LCL
1107 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
867 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 310148
SVRBFF
NEC123-007-310245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
748 PM MDT TUE MAY 30 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE PANHANDLE OF NEBRASKA
      WESTERN MORRILL...EASTERN BANNER

AT 740 PM MDT A SEVERE THUNDERSTORM WAS 30 MILES SOUTHWEST OF
BRIDGEPORT IN THE SOUTHWEST NEBRASKA PANHANDLE OR 30 MILES SOUTH
SOUTHEAST OF SCOTTSBLUFF NEBRASKA AND WAS MOVING NORTHEAST AT
30 MPH.

PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER.  STAY AWAY FROM AREAS WHERE [LOOSE ITEMS
CAN BECOME DANGEROUS FLYING DEBRIS.

GIVE REPORTS OF SEVERE WEATHER OR DAMAGE TO A LAW ENFORCEMENT AGENCY
FOR RELAY TO THE NATIONAL WEATHER SERVICE.

KARR

Nearby

Severe Thunderstorm Warnings in Nebraska, 1989Every severe thunderstorm warning 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.