Alert archive / Nebraska / Tornado Warnings in 1990

Tornado Warning 17, NWS North Platte, NE

June 1, 1990Loup County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 1, 1990, 8:59 PM CDT for Loup County, Nebraska. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 1, 1990, 8:59 PM CDT (01:59 UTC)
Expired
Jun 1, 1990, 9:30 PM CDT
In force
31 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Loup County, NE

The radar

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

What was reported inside it

TimeReportWhereRemark
Jun 1, 9:15 PM CDTTornado F0Loup, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.0 hours before the alert went out and 129 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 1990-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1876 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 00:00Z on 1990-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
1876 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1838 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 020159
TOROFK
NEC115-020230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
859 PM CDT FRI JUN 1 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      SOUTHERN LOUP

AT 2053 PM CDT A TORNADO WAS REPORTED ABOUT 5 TO 10 MILES SOUTHWEST
OF TAYLOR IN SOUTHERN LOUP COUNT EFFECT UNTIL 1 AM CDT SATURDAY FOR ALL
 OF NORTH CENTRAL AND A PART OF NORTHEAST NEBRASKA.

 GVA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 8:05 PM CDTTornado WarningLBFCuster25 min
Jun 1, 8:15 PM CDTTornado WarningLBFCuster45 min
Jun 1, 8:31 PM CDTSevere Thunderstorm WarningLBFKeya Paha29 min
Jun 1, 8:32 PM CDTTornado WarningLBFCuster28 min
Jun 1, 8:58 PM CDTTornado WarningLBFCuster32 min
Jun 1, 9:17 PM CDTTornado WarningLBFPerkins28 min
Jun 1, 9:21 PM CDTSevere Thunderstorm WarningLBFKeith54 min
Jun 1, 9:38 PM CDTSevere Thunderstorm WarningLBFGarfield, Holt42 min
Jun 1, 9:53 PM CDTSevere Thunderstorm WarningLBFLincoln67 min
Jun 1, 11:12 PM CDTSevere Thunderstorm WarningLBFCuster63 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.