Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 85, NWS North Platte, NE

July 24, 1986Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 24, 1986, 8:03 PM CDT for Lincoln County, Nebraska. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jul 24, 1986, 8:03 PM CDT (01:03 UTC)
Expired
Jul 24, 1986, 9:00 PM CDT
In force
57 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, 1.1 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 1986-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 669 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 1986-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
669 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
1490 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.1
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 250119 COR
SVRLBF
NEC111-250200-
...CORRECTION...
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
803 PM CDT THU JUL 24 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHWEST NEBRASKA...LINCOLN

A SEVERE THUNDERSTORM WAS LOCATED OVER NORTHWEST LINCOLN COUNTY
ABOUT 25 MILES NORTHWEST OF NORTH PLATTE AND WAS MOVING SOUTHEAST
AT 30 MPH.  THIS WARNING INCLUDES THE TOWNS OF HERSHY..NORTHPLATTE
..MAXWELL BRADY AND SUTHERLAND.
IF THREATENING WEATHER APPROACHES...GET TO A REINFORCED SHELTER AND
PREPARE FOR STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN..AND
DANGEROUS LIGHTNING.
IF THREATENING WEATHER APPROACHES...GET TO A REINFORCED SHELTER AND
PREPARE FOR STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN AND
DANGEROUS LIGHTNING.  REMEMBER...THESE STORMS CAN AND OCCASIONALLY
DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE
LOOKOUT!!

REPORTS OF SEVERE WEATHER OR DAMAGE CAN BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN ;EXCESS OF 60 MPH..
LARGE HAIL GREATER THAN 3/4 INCH IN DIAMETER..DEADLY LIGHTNING
AND VERY HEAVY RAIN THAT CAN FLOOD A LOW LYING AREA QUICKLY.

CARPER 0119Z

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 24, 7:42 PM CDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
640 PM MDT THU JUL 24 1986

...A LINE OF VERY STRONG THUNDERSTORMS WAS MOVING INTO WEST
CENTRAL NEBRASKA...

A LINE OF INTENSE THUNDERSTORMS EXTENDED FROM JUST WEST OF OGALLALA
ON NORTHEAST TO 30 MILES NORTHWEST OF NORTHPLATTE AND WERE MOVING
SOUTHEAST AT 30 MPH.  THESE STORMS COULD PRODUCE HEAVY RAIN..
VERY STRONG WINDS AND HAIL BETWEEN 7 AND 9 PM MDT AS THEY MOVE
ACROSS WEST CENTRAL NEBRASKA.

CARPER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 10:47 PM CDTSevere Thunderstorm WarningLBFRed Willow33 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.