Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 21, NWS North Platte, NE

June 28, 1987Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 28, 1987, 6:54 PM CDT for Lincoln County, Nebraska. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Jun 28, 1987, 6:54 PM CDT (23:54 UTC)
Expired
Jun 28, 1987, 7:30 PM CDT
In force
36 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Lincoln 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.9 hours before the alert went out and 15 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 1987-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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 1987-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.193958Sfc1 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
93 J/kg
Mixed-layer CIN
-397 J/kg
Mixed-layer LCL
1520 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
23 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 KLBF 282354
SVRLBF
NEC111-290030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
654 PM CDT SUN JUN 28 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  730 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHWEST NEBRASKA
          ...LINCOLN
 
AT 655 PM CDT A SEVERE THUNDERSTORM WAS REPORTED 12 MILES NORTH OF
SUTHERLAND NEBRASKA OR 20 MILES WEST OF NORTH PLATTE.  GOLFBALL SIZE
HAIL HAS ALSO BEEN REPORTED 6 TO 10 MILES NORTH OR NORTH PLATTE.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 7:52 PM CDTSevere Thunderstorm WarningLBFMcPherson68 min
Jun 27, 8:18 PM CDTSevere Thunderstorm WarningLBFArthur47 min
Jun 27, 8:31 PM CDTSevere Thunderstorm WarningLBFKeith54 min
Jun 27, 8:55 PM CDTSevere Thunderstorm WarningLBFKeith55 min
Jun 27, 9:08 PM CDTTornado WarningLBFKeith67 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1987Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.