Alert archive / Nebraska / Tornado Warnings in 1990

Tornado Warning 29, NWS North Platte, NE

June 15, 1990Frontier County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 15, 1990, 8:37 PM CDT for Frontier County, Nebraska. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1990, 8:37 PM CDT (01:37 UTC)
Expired
Jun 15, 1990, 9:15 PM CDT
In force
38 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Frontier 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 00:00Z, 1.6 hours before the alert went out and 69 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 00:00Z on 1990-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2620 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1990-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 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
2620 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 160137 RRA
TORLBF
NEC063-160215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
837 PM CDT FRI JUN 15 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHWEST PART OF NEBRASKA
      FRONTIER

AT 830 PM CDT RADAR INDICATES A TORNADO IN SOUTHERN FRONTIER
COUNTY OR 20 MILES NORTH OF MCCOOK NEBRA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 7:09 PM CDTTornado WarningLBFHitchcock36 min
Jun 15, 7:16 PM CDTSevere Thunderstorm WarningLBFLincoln59 min
Jun 15, 7:34 PM CDTTornado WarningLBFFrontier, Hayes26 min
Jun 15, 7:56 PM CDTSevere Thunderstorm WarningLBFLincoln64 min
Jun 15, 8:05 PM CDTTornado WarningLBFFrontier, Red Willow25 min
Jun 15, 9:23 PM CDTSevere Thunderstorm WarningLBFArthur, Grant67 min
Jun 15, 11:15 PM CDTFlash Flood WarningLBFBoone3 hr
Jun 15, 11:15 PM CDTFlash Flood WarningLBFColfax, Cuming, Platte, Stanton3 hr
Jun 15, 11:15 PM CDTFlash Flood WarningLBFMadison, Pierce, Wayne3 hr
Jun 16, 2:12 AM CDTFlash Flood WarningLBFColfax, Cuming, Platte, Stanton3 hr
Jun 16, 2:12 AM CDTFlash Flood WarningLBFMadison, Pierce, Wayne3 hr
Jun 16, 2:12 AM CDTFlash Flood WarningLBFBoone3 hr
Jun 16, 4:11 PM CDTSevere Thunderstorm WarningLBFCedar, Knox34 min
Jun 16, 4:19 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt56 min
Jun 16, 4:44 PM CDTTornado WarningLBFBoyd, Holt31 min
Jun 16, 5:17 PM CDTTornado WarningLBFBoyd, Holt, Knox28 min
Jun 16, 5:45 PM CDTTornado WarningLBFKnox30 min

Nearby

Tornado Warnings in Nebraska, 1990Every tornado warning in 1990Tornadoes in 1990

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.