Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 67, NWS North Platte, NE

July 10, 1986Rock County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 10, 1986, 8:06 PM CDT for Rock County, Nebraska. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jul 10, 1986, 8:06 PM CDT (01:06 UTC)
Expired
Jul 10, 1986, 9:15 PM CDT
In force
69 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Rock 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 172 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 1986-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 948 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 1986-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 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
948 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
2254 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 110106
SVROFK
NEC115-149-071-110215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
806 PM CDT THU JUL 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTH CENTRAL NEBRASKA...NORTHERN LOUP...SOUTHERN ROCK AND GARFIELD

AT 800PM A SEVERE THUNDERSTORM WAS 15 MILES NORTH OF TAYLOR
NEBRASKA MOVING TO THE SOUTHEAST AT 35 MPH.  THE THUNDERSTORMS WILL
MOVE INTO WESTERN GARFIELD COUNTY 10 MILES NORTH OF BURWELL BY 830
PM CDT.

 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.

 THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY.

 A SEVERE THUNDERSTORM WATCH REMAIN-S IN EFFECT UNTIL MIDNIGHT FOR
 NORTH CENTRAL NEBRASKA.

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 10, 4:41 PM CDT, 3 hours 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
340 PM MDT THU JUL 10 1986

STRONG THUNDERSTORMS HAVE BEEN DEVELOPING LATE THIS AFTERNOON
SCATTERED ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA.

AT 335 PM MDT THE MOST INTENSE THUNDERSTORM WAS LOCATED ABOUT 10
MILES WEST OF IMPERIAL IN CHASE COUNTY OF SOUTHWST NEBRASKA OR ABOUT
58 MILES NORTHWEST OF MCCOOK.  THIS THUNDERSTORM IS MOVING EAST AT
20 MILES AN HOUR AND MAY CONTAIN SMALLG HAIL ALONG WITH BRIEF HEAVY
RAIN.

MONSON
Special weather statement, Jul 10, 6:34 PM CDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
632 PM CDT THU JUL 10 1986

...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT FOR NORTH CENTRAL
   NEBRASKA...

AT 630 PM CDT THUNDERSTORMS CONTINUED TO DEVELOP ACROSS SOUTHWEST AND
WEST CENTRAL NEBRASKA.  THE MOST INTENSE THUNDERSTORMS WERE LOCATED
ABOUT 2 MILES SOUTH OF BRULE IN KEITH COUNTY OR ABOUT 48 MILES EAST OF
SIDNEY AND 4 MILES NORTH OF VENANGO IN PERKINS COUNTY OF SOUTHWEST
NEBRASKA.

THESE THUNDERSTORMS MAY CONTAIN PEA TO MARBLE SIZE HAIL ALONG WITH
WINDS 30 TO 40 MILES AN HOUR.

THE THUNDERSTORMS HAVE BEEN MOVING TO THE EAST AT 30 MILES AN HOUR.

MONSON
Special weather statement, Jul 10, 7:07 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
705 PM CDT THU JUL 10 1986

...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT FOR NORTH CENTRAL
   NEBRASKA...

AT 705 PM CDT THUNDERSTORMS WERE CONTINUING TO DEVELOP AND MOVE EAST
ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA.  THE AREA OF THUNDERSTORMS
EXTENDED SOUTHWEST ACROSS A LARGE PORTION OF KEITH..PERKINS AND CHASE
COUNTIES.

THE MOST INTENSE THUNDERSTORM WAS LOCATED ABOUT 1 MILE WEST OF PAXTON
IN KEITH COUNTY OR 32 MILES WEST OF NORTH PLATTE.  THIS THUNDERSTORM
MAY PRODUCE SMALL HAIL ALONG WITH WINDS OF 30 TO 40 MILES AN HOUR AND
BRIEF HEAVY RAIN.

THE THUNDERSTORMS ARE MOVING TO THE EAST AT 25 MILES AN HOUR.  NO
SEVERE WEATHER HAS BEEN REPORTED AT THIS TIME FROM THESE THUNDERSTORMS.
MONSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 8:06 PM CDTSevere Thunderstorm WarningLBFGarfield, Loup69 min
Jul 10, 8:43 PM CDTSevere Thunderstorm WarningLBFHolt, Wheeler52 min
Jul 11, 6:34 PM CDTSevere Thunderstorm WarningLBFArthur56 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.