Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 30, NWS North Platte, NE

June 6, 1986Brown County, Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 6, 1986, 8:06 PM CDT for Brown County, Keya Paha County, Nebraska. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jun 6, 1986, 8:06 PM CDT (01:06 UTC)
Expired
Jun 6, 1986, 9:15 PM CDT
In force
69 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Brown County, NE, Keya Paha 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 181 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 1986-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2125 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 1986-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
2125 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1457 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 070108 COR
SVROFK
NEC017-070215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE NORFOLK NE
806 PM CDT FRI JUN 6 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 BROWN AND KEYA PAHA

AT 8PM SEVERE THUNDERSTORMS EXTENDED FROM WESTERN KEYA PAHA COUNTY
25 MILES NORTHWEST OF AINSWORTH OR 9 MILES NORTHWEST OF SPRINGVIEW
INTO TRIPP COUNTY OF SOUTH DAKOTA ABOUT 45 MILES NORTH OF AINSWORTH
THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 20 MPH.

HAIL UP TO GOLFBALL SIZE WAS REPORTED 9 MILES NORTH AND 9 MILES
WEST OF SPRINGVIEW.
 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.

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, Jun 6, 5:06 PM CDT, 3 hours before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
400 PM MDT FRI JUN 6 1986

HEAVY THUNDERSHOWERS ARE MOVING ACROSS PARTS OF WEST CENTRAL NEBRASKA.

AT 400 PM MDT THUNDERSHOWERS WERE LOCATED ACROSS EASTERN ARTHUR TO KEITH
ACROSS NORTHWEST PERKINS COUNTY OF NEBRASKA. THE HEAVIEST WAS NEAR PAXTON
TO 10 MILES SOUTHEAST OF OGALLALA WHICH IS 46 MILES WEST OF NORTH PLATTE,
NEBRASKA. HEAVY RAIN WITH ONE TO ONE AND A HALF INCHES SIZE HAIL UWAS
REPORTED FROM THE OGALLALA POLICE DEPARTMENT AS THE STORM PASS THE CITY.

THESE THUNDERSHOWERS WERE MOVING EAST AT 20 MILES AN HOUR AND WILL BE
MOVING ACROSS PAXTON NEBRASKA WHICH IS 31 MILES WEST OF NORTH PLATTE
BY 415 PM MDT.

HETZKE
Special weather statement, Jun 6, 7:30 PM CDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
730 PM CDT FRI JUN 6 1986

THE SEVERE THUNDERSTORM WATCH HAS BEEN CALMISLBF
Special weather statement, Jun 6, 7:37 PM CDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
735 PM CDT FRI JUN 6 1986

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED WEST CENTRAL AND
SOUTHWEST NEBRASKA.

AT 735 PM CDT AN AREA OF THUNDERSTORMS EXTENDS OVER SOUTHERN CUSTER
COUNTY NEAR BROKEN BOW TO EASTERN LINCOLN COUNTY 15 MILES EAST OF
NORTH PLATTE TO NEAR MCCOOK INTO SOUTHWEST CORNER OF SOUTHWEST
NEBRASKA.
THIS AREA WAS MOVING SOUTHEST AT 30 MILES AN HOUR.

THESE THUNDERSTORMS CAN PRODUCE HEAVY RAIN..HAIL..STRONG GUSTY
SURFACE WINDS.

IN THE CITY OF NORTH PLATTE SURFACE WINDS GUSTS TO  59 MILES AN HOUR
WHICH CAUSED TREE DAMAGE..POWER OUTAGE IN PARTS OF THE CITY.
HETZKE 0037Z

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 9:15 PM CDTSevere Thunderstorm WarningLBFHolt30 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.