Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 162, NWS North Platte, NE

September 17, 1992Antelope County, Knox County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 17, 1992, 7:49 PM CDT for Antelope County, Knox County, Nebraska. It was in force for 41 min. 1 report 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
Sep 17, 1992, 7:49 PM CDT (00:49 UTC)
Expired
Sep 17, 1992, 8:30 PM CDT
In force
41 min
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Antelope County, NE, Knox County, NE

What was reported inside it

TimeReportWhereRemark
Sep 17, 8:10 PM CDTHail 1.75Antelope, 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

Omaha, NE (KOVN), launched 00:00Z, 0.8 hours before the alert went out and 180 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1992-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1992-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
NaN m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 180050
SVROFK
NEC003-107-180130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
749 PM CDT THU SEP 17 1992
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEBRASKA
 
   ...ANTELOPE COUNTY...SOUTHERN KNOX COUNTY
 
AT 744 PM CDT GOLFBALL SIZE HAIL WAS REPORTED AT PAGE IN EAST HOLT
COUNTY...A TOWN ABOUT 15 MILES SOUTHEAST OF ONEILL.
 
RADAR INDICATES THAT THIS STORM WILL MOVE EAST AT 40 MPH INTO SOUTHERN
KNOX AND ANTELOPE COUNTIES.  THE TOWNS DIRECTLY IN THE STORMS PATH ARE
ORCHARD...AND ROYAL.
 
THE STORM IS STILL LIKELY TO CONTAIN LARGE HAIL AND DAMAGING WINDS.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE
OUTSIDE SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG
BUILDING.  ONCE INSIDE...STAY AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.
 
KLEFFMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 7:33 PM CDTSevere Thunderstorm WarningLBFHolt27 min
Sep 17, 8:34 PM CDTSevere Thunderstorm WarningLBFPierce41 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992Every severe thunderstorm warning in 1992

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.