Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 103, NWS Des Moines, IA

August 10, 1995Hamilton County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Aug 10, 1995, 5:41 AM CDT for Hamilton County, Iowa. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Aug 10, 1995, 5:41 AM CDT (10:41 UTC)
Expired
Aug 10, 1995, 6:15 AM CDT
In force
34 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Hamilton County, IA

The radar

The Des Moines radar (KDMX), 73 km from the middle of the area, began a volume at 10:43 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, 10.7 hours before the alert went out and 250 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 1995-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2313 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, Omaha, NE at 00:00Z on 1995-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
2313 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1092 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
155 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 101040 RRA
SVRDSM
IAC079-101115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
541 AM CDT THU AUG 10 1995

* SEVERE THUNDERSTORM WARNING FOR
  HAMILTON COUNTY - CENTRAL IOWA

* UNTIL 615 AM CDT
 
* SOME TOWNS AFFECTED
    JEWELL
    ELLSWORTH
    STANHOPE

* AT 638 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR STANHOPE
  ABOUT 35 MILES SOUTHEAST OF FORT DODGE MOVING EAST AT 30 MPH.

* THE STzORM WILL BE NEAR JEWELL AT 550 AM CDT.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.




FORSTER/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.