Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 69, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jul 11, 1986, 5:34 PM MDT for Arthur County, Nebraska. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1986, 5:34 PM MDT (23:34 UTC)
- Expired
- Jul 11, 1986, 6:30 PM MDT
- In force
- 56 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Arthur 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 104 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
- 28 J/kg
- Mixed-layer CIN
- -254 J/kg
- Mixed-layer LCL
- 1236 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 112334 SVRLBF NEC005-120030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 534 PM MDT FRI JUL 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF WEST CENTRAL NEBRASKA...CENTRAL AND EASTERN ARTHUR AT 530 PM MDT RADAR INDICATED A SEVERE THUNDERSTORM 1 MILE NORTH OF ARTHUR NEBRASKA..MOVING TOWARDS THE SOUTHEAST AT 20 MPH 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. HORN 2333Z
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 11, 2:12 PM MDT, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 312 PM CDT FRI JUL 11 1986 AT 310 PM CDT THUNDERSTORMS WERE INTENSIFING ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA. THE MOST INTENSE THUNDERSTORMS WERE LOCATED ACROSS WESTERN LINCOLN COUNTY IN A LINE FROM ABOUT 20 MILES NORTHWEST OF NORTH PLATTE TO DICKENS IN SOUTHWEST LINCOLN COUNTY WHICH IS ABOUT 20 MILES SOUTHWEST OF NORTH PLATTE. THESE THUNDERSTORMS MAY CONTAIN PEA TO MARBLzE SIZE HAIL ALONG WITH BRIEF HEAVY RAIN. THUNDERSTORMS SHOULD BE MOVING ACROSS THE NORTH PLATTE AREA BY 330 PM CDT THIS AFTERNOON. MONSON
Special weather statement, Jul 11, 3:22 PM MDT, 2 hours 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 420 PM CDT FRI JUL 11 1986 ...SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT FOR PORTIONS OF SOUTHWEST AND WEST CENTRAL NEBRASKA... AT 420 PM CDT THUNDERSTORMS WERE SCATTERED ACROSS WEST CENTRAL NEBRASKA. THE STRONGEST THUNDERSTORM WAS LOCATED ABOUT 10 MILES EAST OF NORTH PLATTE MOVING TO THE EAST. AS THIS THUNDERSTORM MOVED ACROSS THE COMMUNITY OF NORTH PLATTE PEA SIZE HAIL WAS REPORTED BY CIVIL DEFENSE WHILE AT THE AIRPORT BRIEF HEAVY RAIN AMOUNTED TO 0.25 OF AN INCH. OTHER WEAKER THUNDERSTORMS WERE SCATTERED ACROSS LOGAN..THOMAS AND MCPHERSON COUNTIES OF WEST CENTRAL NEBRASKA. THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN. THE THUNDERSTORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR. MONSON
Special weather statement, Jul 11, 4:14 PM MDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 513 PM CDT FRI JUL 11 1986 ...SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT FOR PORTIONS OF SOUTHWEST AND WEST CENTRAL NEBRASKA... AT 513 PM CDT THUNDERSTORMS ACROSS WEST CENTRAL NEBRASKA WERE DECREASING HOWEVER ONE STRONG THUNDERSTORM REMAINS IN CUSTER COUNTY. THIS THUNDERSTORM WAS LOCATED ABOUT 5 MILES WEST OF BROKEN BOW OR 44 MILES NORTHEAST OF NORTH PLATTE. THIS THUNDERSTORM PRODUCED PEA TO MARBLE SIZE HAIL IN ARNOLD AS IT PASSED THROUGH ALONG WITH 30 TO 40 MILE AN HOUR WINDS AND BRIEF HEAVY RAIN. PEA TO MARBLE SIZE HAIL CAN BE EXPECTED IN THE COMMUNITIES OF MERNA.. ANSELMO AND BROKEN BOW AS THE THUNDERSTORM MOVES THROUGH THESE COMMUNITIES BY 530 PM CDT. MONSON
Special weather statement, Jul 11, 5:14 PM MDT, 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 613 PM CDT FRI JUL 11 1986 ...SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT FOR PORTIONS OF SOUTHWEST AND WEST CENTRAL NEBRASKA... AT 613 PM CDT SCATTERED THUNDERSTORMS WERE CONTINUING ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA. THE STRONGEST THUNDERSTORM WAS LOCATED IN EXTREME NORTHWEST ARTHUR COUNTY ABOUT 62 MILES NORTHWEST OF NORTH PLATTE. ANOTHER STRONG THUNDERSTORM WAS LOCATED ABOUT 7 MILES SOUTHEAST OF THEDFORD IN THOMAS COUNTY ABOUT 51 MILES NORTH OF NORTH PLATTE. THESE THUNDERSTORMS HAVE BEEN MOVING TO THE SOUTHEAST AND HAVE BEEN INTENSIFYING. SMALL HAIL ALONG WITH WINDS OF 35 TO 45 MILES AN HOUR CAN BE EXPECTED WITH THESE THUNDERSTORMS. ANOTHER STRONG THUNDERSTORM WAS LOCATED NEAR MAYWOOD IN FRONTIER COUNTY ABOUT 26 MILES SOUTH OF NORTH PLATTE MOVING TO THE EAST. MONSON
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:06 PM MDT | Severe Thunderstorm Warning | LBF | Garfield, Loup | 69 min |
| Jul 10, 7:06 PM MDT | Severe Thunderstorm Warning | LBF | Rock | 69 min |
| Jul 10, 7:43 PM MDT | Severe Thunderstorm Warning | LBF | Holt, Wheeler | 52 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.