Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 53, NWS Des Moines, IA

June 25, 1995Cerro Gordo County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 25, 1995, 1:38 PM CDT for Cerro Gordo County, Iowa. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1995, 1:38 PM CDT (18:38 UTC)
Expired
Jun 25, 1995, 2:10 PM CDT
In force
32 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Cerro Gordo County, IA

The radar

The Des Moines radar (KDMX), 155 km from the middle of the area, began a volume at 18:37 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.6 hours before the alert went out and 198 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, Minneapolis, MN at 12:00Z on 1995-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 231 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, Minneapolis, MN at 12:00Z on 1995-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
231 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
940 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
41 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 KDSM 251837 RRA
SVRDSM
IAC033-251910-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
138 PM CDT SUN JUN 25 1995

* SEVERE THUNDERSTORM WARNING FOR
  WESTERN CERRO GORDO COUNTY - NORTH CENTRAL IOWA

* UNTIL 210 PM CDT
 
* SOME TOWNS AFFECTED
    THORNTON
    CLEAR LAKE
    MASON CITY AIRPORT

* AT 130 PM CDT LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM 20
  MILES SOUTHWEST OF MASON CITY NEAR THORNNTON MOVING NORTHWEST AT 20
  MPH. THIS STORM HAS ALREADY PRODUCED 1 INCH HAIL IN THORNTON.

* THE STORM WILL BE NEAR CLEAR LAKE AT 145 PM CDT.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.

BELLES

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; radar from the NEXRAD Level II archive.