Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 75, NWS Sioux Falls, SD

July 11, 1992Thurston County, Nebraska

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 11, 1992, 7:35 PM CDT for Thurston County, Nebraska. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1992, 7:35 PM CDT (00:35 UTC)
Expired
Jul 11, 1992, 8:00 PM CDT
In force
25 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Thurston County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 0.6 hours before the alert went out and 94 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 1992-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1377 joules per kilogram.LCLEL10008507005003002001001 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 1992-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
1377 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSUX 120036
SVRSUX
NEC173-120100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX CITY IA
735 PM CDT SAT JUL 11 1992
 
THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST NEBRASKA
 
   ...EASTERN THURSTON COUNTY
 
AT 730 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR ROSALIE
NEBRASKA...30 MILES SOUTHEAST OF SIOUX CITY. MOVEMENT WAS SOUTHEAST AT
15 MILES AN HOUR. THIS STORM WILL PASS THROUGH ROSALIE AND OTHER RURAL
AREA OF EASTERN THURSTON COUNTY BEFORE 8 PM.
 
THIS STORM HAS THE CAPABILITY OF PRODUCING LARGE HAIL AND HEAVY RAINS
THAT MAY PRODUCE LOCALIZED FLOODING.
 
REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING...AND HEAVY RAINS THAT CAN
QUICKLY FLOOD LOW LYING AREAS. IF YOU ARE IN THE PATH OF THIS STORM
TAKE SHEtLTER IN A REINFORCED BUILDING IMMEDIATELY.
 
ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORTS OF
SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.
 
IRELAND

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; the sounding from the Mesonet's radiosonde archive.