Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Des Moines, IA

April 10, 1995Decatur County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Apr 10, 1995, 10:45 AM CDT for Decatur County, Iowa. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Apr 10, 1995, 10:45 AM CDT (15:45 UTC)
Expired
Apr 10, 1995, 11:20 AM CDT
In force
35 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Decatur County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 3.8 hours before the alert went out and 226 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 12:00Z on 1995-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 12:00Z on 1995-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
513 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
259 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 101546
SVRDSM
IAC053-101620-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1045 AM CDT MON APR 10 1995

* SEVERE THUNDERSTORM WARNING FOR
  DECATUR COUNTY - SOUTH CENTRAL IOWA

* UNTIL 1120 AM CDT
 
* SOME TOWNS AFFECTED
    LEON
    GARDEN GROVE

* AT 1042 AM RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF
  LEON OR 65 MILES SOUTH OF DES MOINES MOVING NORTHEAST AT 40 MPH.

* THE S$TORM WILL BE THROUGH LEON BY 1055 AM AND THROUGH GARDEN GROVE BY
  1110 AM.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 9:54 AM CDTSevere Thunderstorm WarningDMXDecatur46 min
Apr 10, 12:21 PM CDTSevere Thunderstorm WarningDMXWayne29 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.