Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 124, NWS North Platte, NE

September 18, 1986Boone County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 18, 1986, 11:32 PM CDT for Boone County, Nebraska. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Sep 18, 1986, 11:32 PM CDT (04:32 UTC)
Expired
Sep 19, 1986, 12:25 AM CDT
In force
53 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Boone 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, 4.5 hours before the alert went out and 148 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 1986-09-19Temperature 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 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 1986-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
3587 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
278 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 190432
SVROFK
NEC011-190530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
1132 PM CDT THU SEP 18 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST NEBRASKA...BOONE

AT 233 PM CDT RADAR SHOWED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST
OF ALBION.. OR 40 MILES SOUTHWEST OF NORFOLK MOVING EAST NORTHEAST
AT 25 MPH.

 REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DEADLY WINDS IN EXCESS
OF 75 MPH...LARGE HAIL...KILLER LIGHTNING...AND TORRENTIAL RAINS
THAT CAN QUICKLY FLOOD A LOW LYING AREA.


 SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 10:18 PM CDTSevere Thunderstorm WarningLBFKeith57 min
Sep 18, 11:38 PM CDTSevere Thunderstorm WarningLBFAntelope, Madison47 min
Sep 18, 11:38 PM CDTSevere Thunderstorm WarningLBFPlatte47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning 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.