Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 64, NWS Sioux Falls, SD

July 25, 1995Cherokee County, O'Brien County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 25, 1995, 7:16 PM CDT for Cherokee County, O'Brien County, Iowa. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1995, 7:16 PM CDT (00:16 UTC)
Expired
Jul 25, 1995, 8:05 PM CDT
In force
49 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Cherokee County, IA, O'Brien County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.3 hours before the alert went out and 187 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 1995-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1887 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 1995-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
1887 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1695 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 260019 RRA
SVRFSD
IAC035-141-260105-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
716 PM CDT TUE JUL 25 1995

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 805 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHWEST IOWA

   ...NORTHEASTERN CHEROKEE COUNTY
   ...SOUTHEASTERN O'BRIEN COUNTY
 
AT 715 PM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY SIOUX FALLS
DOPPLER RADAR 32 MILES SOUTH OF SIBLEY  OR 1 MILE WEST OF CALUMET
MOVING EAST AT 23 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
CALUMET                  AROUND 719 PM CDT
SUTHERLAND               AROUND 726 PM CDT
LARRABEE                 AROUND 732 PM CDT
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG...REINFORCED BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

Nearby

Severe Thunderstorm Warnings in Iowa, 1995Every severe thunderstorm warning in 1995

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.