Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 98, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jul 31, 1986, 5:36 PM MDT for Chase County, Hayes County, Perkins County, Nebraska. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1986, 5:36 PM MDT (23:36 UTC)
- Expired
- Jul 31, 1986, 6:30 PM MDT
- In force
- 54 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Chase County, NE, Hayes County, NE, Perkins 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 12:00Z, 11.6 hours before the alert went out and 92 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.
- Mixed-layer CAPE
- 1284 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLBF 312336
SVRLBF
NEC029-111-135-085-010030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
536 PM MDT THU JUL 31 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF
SOUTHWEST NEBRASKA...EASTERN CHASE...SOUTHWEST LINCOLN...EASTERN
PERKINS AND HAYES
AT 528 PM MDT 3/4 INCH SIZE HAIL WAS REPORTED BY PERKINS COUNTY
SHERRIF. SEVEN MILES SOUTH OF GRANT NEBRASKA IN PERKINS COUNTY.
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 2333Z
ZWhat 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 31, 4:18 PM MDT, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 415 PM MDT THU JUL 31 1986 AN INTENSE THUNDERSTORM HAD MOVED INTO SOUTHWEST NEBRASKA THIS AFTERNOON. AT 415 PM MDT AN INTENSE THUNDERSTORM HAD MOVED INTO CHASE COUNTY OF SOUTHWEST NEBRASKA. THE THUNDERSTORM WAS LOCATED 7 MILES NORTHWEST OF IMPERIAL NEBRASKA MOVING EAST AT 20 MILES AN HOUR. THE THUNDERSTORM WOULD BE ABOUT 60 MILES SOUTHWEST OF NORTH PLATTE NEBRASKA. AS THIS TVHUNDERSTORM MOVES ACROSS SOUTHWEST NEBRASKA PEOPLE IN THE VICINITY SHOULD BE ON THE LOOKOUT FOR HAIL..HEAVY RAIN..GUSTY WINDS AND DANGEROUS LIGHTNING. MEYER
Special weather statement, Jul 31, 5:19 PM MDT, 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 515 PM MDT THU JUL 31 1986 INTENSE THUNDERSTORMS CONTINUED TO SPREAD ACROSS SOUTHWEST NEBRASKA THIS THURSDAY AFTERNOON. AT 515 PM MDT INTENSE THUNDERSTORMS WERE OVER PARTS OF CHASE..PERKINS AND HAYES COUNTIES OF SOUTHWEST NEBRASKA. ONE OF THE STRONGEST CELLS WAS 7 MILES NORTH OF IMPERIAL NEBRASKA AND A SECOND VERY STRONG CELL WAS 10 MILES SOUTHWEST OF DICKENS NEBRASKA IN LINCOLN COUNTY. ALL THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR. AS THESE THUNDERSTORMS MOVE ACROSS SOUTHWEST NEBRASKA PEOPLE IN THE VICINITY SHOULD BE ON THE LOOKOUT FOR HAIL..HEAVY RAIN..GUSTY WINDS AND DANGEROUS LIGHTNING. MEYER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:46 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 59 min |
| Jul 30, 8:51 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 39 min |
| Jul 31, 7:25 AM MDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan | 35 min |
| Jul 31, 5:36 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 54 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.