Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 84, NWS Des Moines, IA

July 23, 1995Madison County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 23, 1995, 10:41 PM CDT for Madison County, Iowa. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1995, 10:41 PM CDT (03:41 UTC)
Expired
Jul 23, 1995, 11:15 PM CDT
In force
34 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Madison County, IA

The radar

The Des Moines radar (KDMX), 51 km from the middle of the area, began a volume at 03:43 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

Omaha, NE (KOAX), launched 00:00Z, 3.7 hours before the alert went out and 197 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 1995-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1958 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 1995-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
1958 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1543 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDSM 240342 RRA
SVRDSM
IAC121-240415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1041 PM CDT SUN JUL 23 1995

* SEVERE THUNDERSTORM WARNING FOR
  MADISON COUNTY - SOUTH CENTRAL IOWA

* UNTIL 1105 PM CDT
 
* SOME TOWNS AFFECTED
    WINTERSET

* AT 1038 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
  NORTHWEST OF WINTERSET MOVING SOUTHEAST AT 20 MPH.

* THE STORM WILL BE IN WINTERSET BY 1045 PM.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.
REMEMBER SEVERE THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES.



KUBINA

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 10:33 PM CDTSevere Thunderstorm WarningDMXMadison32 min

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.