Alert archive / Nebraska / Tornado Warnings in 1994

Tornado Warning 8, NWS Sioux Falls, SD

June 25, 1994Thurston County, Nebraska

NWS Sioux Falls, SD issued this tornado warning at Jun 25, 1994, 8:05 PM CDT for Thurston County, Nebraska. It was in force for 20 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1994, 8:05 PM CDT (01:05 UTC)
Expired
Jun 25, 1994, 8:25 PM CDT
In force
20 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Thurston County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.1 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 1994-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 665 joules per kilogram.LCLLFCEL10008507005003002001001 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 1994-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
665 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1520 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
87 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 KSUX 260105
TORSUX
NEC173-260130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX CITY IA
805 PM CDT SAT JUN 25 1994
 
THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST NEBRASKA
 
   ...SOUTHERN THURSTON COUNTY
 
AT 803 PM CDT RADAR INDICATED A POSSIBLE TORNADO JUST NORTH OF PENDER
NEBRASKA...30 MILES SOUTHWEST OF SIOUX CITY. MOVEMENT OF THE STORM WAS
SOUTHEAST AT 20 MILES AN HOUR. PEOPLE IN THE TOWNS OF PENDER...ROSALIE
AND MACY NEBRASAK SHOULD TAKE COVER IMMEDIATELY.
 
TAKE COVER IMMEDIATELY IN AN INTERIOR ROOM OF A STRONG BUILDING.
AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING OR GET INTO A DITCH OR DEPRESSION...COVER YOUR HEAD WITH
YOUR HANDS.
 
 
HUMPHREY

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 7:24 PM CDTSevere Thunderstorm WarningFSDDakota, Dixon38 min
Jun 25, 7:45 PM CDTSevere Thunderstorm WarningFSDThurston45 min

Nearby

Tornado Warnings in Nebraska, 1994Every tornado warning in 1994Tornadoes in 1994

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.