Alert archive / Nebraska / Tornado Warnings in 1986

Tornado Warning 26, NWS North Platte, NE

July 29, 1986Antelope County, Madison County, Pierce County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 29, 1986, 8:01 PM CDT for Antelope County, Madison County, Pierce County, Nebraska. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1986, 8:01 PM CDT (01:01 UTC)
Expired
Jul 29, 1986, 8:30 PM CDT
In force
29 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Antelope County, NE, Madison County, NE, Pierce 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

Omaha, NE (KOAX), launched 00:00Z, 1.0 hours before the alert went out and 145 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, Omaha, NE at 00:00Z on 1986-07-30Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1986-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
3637 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
155 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 KOFK 300101
TOROFK
NEC003-119-139-300130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
801 PM CDT TUE JUL 29 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHEAST NEBRASKA...NORTHEAST ANTELOPE...NORTHERN MADISON AND PIERCE

AT 755 PM CDT RADAR CONTINUED TO INDICATE A TORNADO 25 MILES
NORTHWEST OF NORFOLK IN NORTHERN ANTELOPE COUNTY.  THIS STORM
WAS MOVING TO THE SOUTHEAST AT 25 MPH.  PERSONS IN TILDEN...
MEADOW GROVE...PIERCE...BATTLE CREEK AND NORFOLK SHOULD BE
PREPARED TO TAKE COVER IMMEDIATELY.

 THIS IS AN EXTREMELY DANGEROUS SITU\ATION...PEOPLE IN THE PATH OF
STORM SHOULD TAKE COVER IMMEDIATELY IN A BASEMENT SHELTER OR IN THE
CENTRAL PART OF THEIR HOMES.  ABANDON CARS AND MOBILE HOMES FOR A
REINFORCED SHELTER.

 BOWMAN 0100Z

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 7:09 PM CDTTornado WarningLBFAntelope, Knox, Pierce51 min
Jul 29, 7:41 PM CDTSevere Thunderstorm WarningLBFGarfield, Loup49 min
Jul 29, 8:28 PM CDTTornado WarningLBFMadison, Pierce32 min
Jul 29, 8:34 PM CDTSevere Thunderstorm WarningLBFGarfield, Wheeler56 min
Jul 29, 9:02 PM CDTTornado WarningLBFMadison, Pierce28 min
Jul 29, 9:33 PM CDTSevere Thunderstorm WarningLBFAntelope27 min
Jul 29, 10:06 PM CDTSevere Thunderstorm WarningLBFAntelope24 min
Jul 30, 1:40 AM CDTSevere Thunderstorm WarningLBFAntelope25 min

Nearby

Tornado Warnings in Nebraska, 1986Every tornado warning in 1986Tornadoes in 1986

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.