Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 72, NWS Des Moines, IA

July 8, 1995Wright County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 8, 1995, 10:04 PM CDT for Wright County, Iowa. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1995, 10:04 PM CDT (03:04 UTC)
Expired
Jul 8, 1995, 10:35 PM CDT
In force
31 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Wright County, IA

The radar

The Des Moines radar (KDMX), 111 km from the middle of the area, began a volume at 03:06 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 00:00Z, 3.1 hours before the alert went out and 236 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 00:00Z on 1995-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1496 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, Minneapolis, MN at 00:00Z on 1995-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
1496 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1043 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.5
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 090304
SVRDSM
IAC197-090335-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1004 PM CDT SAT JUL 8 1995

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHERN WRIGHT COUNTY - NORTH CENTRAL IOWA

* UNTIL 1035 PM CDT
 
* SOME TOWNS AFFECTED
    WALL LAKE
    HIGHWAY 69

* AT 1000 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES
  NORTHWEST OF FORT DODGE NEAR CLARION MOVING SOUTH 25 MPH.

* THE STORM WILL BE NEAR WALL LAKE BY 1010 PM CDT..

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.




FORSTER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 9:27 PM CDTSevere Thunderstorm WarningDMXFranklin, Wright33 min
Jul 8, 9:33 PM CDTTornado WarningDMXWright32 min
Jul 8, 10:17 PM CDTSevere Thunderstorm WarningDMXHamilton43 min
Jul 8, 10:49 PM CDTTornado WarningDMXHamilton31 min
Jul 8, 11:19 PM CDTSevere Thunderstorm WarningDMXStory46 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.