Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 92, NWS North Platte, NE

July 29, 1986Antelope County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 29, 1986, 9:33 PM CDT for Antelope County, Nebraska. It was in force for 27 min.

The area

The counties it named.

The facts

Issued: Jul 29, 1986, 9:33 PM CDT (02:33 UTC)
Expired: Jul 29, 1986, 10:00 PM CDT
In force: 27 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Antelope 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

Omaha, NE (KOAX), launched 00:00Z, 2.6 hours before the alert went out and 170 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3637 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 300233
SVROFK
NEC003-300300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
933 PM CDT TUE JUL 29 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST NEBRASKA...ANTELOPE

AT 930 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 40 MILES WEST
OF NORFOLK OR ABOUT 15 MILES SOUTHWEST OF NELIGH MOVING TO THE
EAST AT 35 MPH.

 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 PRODUCET A TORNADO WITH LITTLE
OR NO WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY.

 A TORNADO WATCH IS IN EFFECT UNTIL 1 AM CDT FOR ALL OF NORTHEAST
 NEBRASKA.
 VAN ALLEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 7:09 PM CDT	Tornado Warning	LBF	Antelope, Knox, Pierce	51 min
Jul 29, 7:41 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Loup	49 min
Jul 29, 8:01 PM CDT	Tornado Warning	LBF	Antelope, Madison, Pierce	29 min
Jul 29, 8:28 PM CDT	Tornado Warning	LBF	Madison, Pierce	32 min
Jul 29, 8:34 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Wheeler	56 min
Jul 29, 9:02 PM CDT	Tornado Warning	LBF	Madison, Pierce	28 min
Jul 29, 10:06 PM CDT	Severe Thunderstorm Warning	LBF	Antelope	24 min
Jul 30, 1:40 AM CDT	Severe Thunderstorm Warning	LBF	Antelope	25 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1986 Every 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.