Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Des Moines, IA

April 8, 1995Adair County, Cass County, Guthrie County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Apr 8, 1995, 8:56 PM CDT for Adair County, Cass County, Guthrie County, Iowa. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Apr 8, 1995, 8:56 PM CDT (01:56 UTC)
Expired
Apr 8, 1995, 9:25 PM CDT
In force
29 min
Issued by
NWS Des Moines, IA
Area
Whole counties

Counties Adair County, IA, Cass County, IA, Guthrie County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.9 hours before the alert went out and 146 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 1995-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1995-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
615 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDSM 090157 RRA
SVRDSM
IAC001-029-077-090225-

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

* SEVERE THUNDERSTORM WARNING FOR
  ADAIR COUNTY - SOUTHWEST IOWA
  CASS COUNTY - SOUTHWEST IOWA
  GUTHRIE COUNTY - WEST CENTRAL IOWA

* UNTIL 925 PM CDT
 
* SOME TOWNS AFFECTED
    ADAIR
    CASEY
    GREENFIELD
    ANITA

* AT 850 PM RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS N0EAR
ANITA OR ABOUT 60 MILES WEST OF DES MOINES MOVING EAST AT 40 MPH.

* THE STORM WILL BE NEAR GUTHRIE CENTER AND GREENFIELD 910 PM.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.




PETERSEN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 9:28 PM CDTSevere Thunderstorm WarningDMXGuthrie32 min
Apr 8, 9:40 PM CDTSevere Thunderstorm WarningDMXAdair35 min
Apr 8, 10:24 PM CDTSevere Thunderstorm WarningDMXJasper31 min
Apr 8, 10:52 PM CDTSevere Thunderstorm WarningDMXJasper23 min
Apr 9, 12:41 AM CDTSevere Thunderstorm WarningDMXRinggold34 min
Apr 9, 12:51 AM CDTSevere Thunderstorm WarningDMXTaylor34 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.