Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 9, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 23, 1986, 8:43 PM CST for Boyd County, Keya Paha County, Rock County, Nebraska. It was in force for 62 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 23, 1986, 8:43 PM CST (02:43 UTC)
- Expired
- Apr 23, 1986, 9:45 PM CST
- In force
- 62 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Boyd County, NE, Keya Paha County, NE, Rock County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 9:00 PM CST | Hail 1.5 | Rock, NE | |
| Apr 23, 9:08 PM CST | Thunderstorm Wind 65 | Boyd, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.7 hours before the alert went out and 208 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
- 25 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 3420 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- -25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KOFK 240243
SVROFK
NEC103-149-015-240345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
843 PM CST WED APR 23 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 945 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTIES OF
NORTH CENTRAL NEBRASKA...EASTERN KEYA PAHA...NORTHERN ROCK AND
WESTERN BOYD
AT 840PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 5 MILES NORTH]
OF BASSETT IN NORTHERN ROCK COUNTY OR ABOUT 30 MILES EAST OF ]
AINSWORTH. THE SEVERE THUNDERSTORM WAS MOVING TO THE EAST AT 35 ]
MPH. ]
]
]
]
]
]
]
REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DEADLY WINDS IN EXCESS
OF 75 MPH...LARGE HAIL...KILLER LIGHTNING...AND TNORRENTIAL 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.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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.