Alert archive / Nebraska / Tornado Warnings in 1990

Tornado Warning 10, NWS North Platte, NE

May 18, 1990Lincoln County, Nebraska

NWS North Platte, NE issued this tornado warning at May 18, 1990, 7:44 PM CDT for Lincoln County, Nebraska. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
May 18, 1990, 7:44 PM CDT (00:44 UTC)
Expired
May 18, 1990, 8:15 PM CDT
In force
31 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 00:00Z, 0.7 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 00:00Z on 1990-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 1990-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
360 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 190044
TORLBF
NEC111-190115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
744 PM CDT FRI MAY 18 1990

THE NATIONAL WEATHER SERVICE HAS uISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHWEST PART OF NEBRASKA
      LINCOLN

AT 738 PM CDT A TORNADO WAS REPORTED BY SPOTTERS 8 MILES WEST OF
NORTH PLATTE.  THIS TORNADO WARNING I

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 7:05 PM CDTSevere Thunderstorm WarningLBFCedar, Knox55 min
May 18, 7:07 PM CDTSevere Thunderstorm WarningLBFCherry68 min
May 18, 7:12 PM CDTTornado WarningLBFLincoln33 min
May 18, 7:38 PM CDTTornado WarningLBFFrontier, Red Willow37 min
May 18, 7:56 PM CDTSevere Thunderstorm WarningLBFArthur, Grant, Hooker64 min
May 18, 8:59 PM CDTTornado WarningLBFRed Willow31 min
May 18, 9:05 PM CDTSevere Thunderstorm WarningLBFThomas55 min
May 18, 9:29 PM CDTTornado WarningLBFRed Willow31 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.