Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 4, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 17, 1986, 4:17 PM CST for Frontier County, Red Willow County, Nebraska. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1986, 4:17 PM CST (22:17 UTC)
- Expired
- Apr 17, 1986, 4:55 PM CST
- In force
- 38 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Frontier County, NE, Red Willow 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, 10.3 hours before the alert went out and 88 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 222 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 172217 SVRLBF NEC063-145-172255- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 417 PM CST THU APR 17 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 455 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHWEST NEBRASKA...SOUTHERN FRONTIER AND RED-WILLOW AT 355 PM CST A SEVERE THUNDERSTORM WAS INDICATED 3 MILES SOUTH OF C COOK NEBRASKA MOVING NORTH AT 30 MILES AN HOUR. IF THREATENING WEATHER APPROACHES...GET TO A REINFORCED SHELTER AND PREPARE FOR STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN..AND DANGEROUS LIGHTNING. BRITTON 2215Z
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, Apr 17, 2:01 PM CST, 2 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 2 PM CST THU APR 17 1986 THUNDERSTORMS HAS DEVELOPED AND HAVE MOVED INTO SOUTHWEST AND WEST CENTRAL NEBRASKA..FROM 60 MILES SOUTHWEST OF NORTH PLATTE TO 75 MILES NORTHWEST OF NORTH PLATTE NEBRASKA. THEAVIEST THUNDERSTORM WAS 55 MILES WEST OF NORTH PLATTE NEBRASKA AND HAS PRODUCED MARBLE SIZE HAIL AND HEAVY RAIN. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT ABOUT 25 MPH. " COFFIN
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 2:01 PM CST | Tornado Warning | LBF | Keith | 29 min |
| Apr 17, 2:51 PM CST | Severe Thunderstorm Warning | LBF | Keith, Lincoln, Perkins | 39 min |
| Apr 17, 3:34 PM CST | Severe Thunderstorm Warning | LBF | Hayes | 46 min |
| Apr 17, 3:40 PM CST | Tornado Warning | LBF | Arthur, Keith | 20 min |
| Apr 17, 4:07 PM CST | Severe Thunderstorm Warning | LBF | Hayes | 13 min |
| Apr 17, 4:25 PM CST | Tornado Warning | LBF | Frontier, Lincoln | 20 min |
| Apr 17, 4:56 PM CST | Severe Thunderstorm Warning | LBF | Red Willow | 59 min |
| Apr 17, 5:44 PM CST | Tornado Warning | LBF | Lincoln | 16 min |
| Apr 17, 5:58 PM CST | Severe Thunderstorm Warning | LBF | Custer | 57 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.