Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 107, NWS Des Moines, IA

August 28, 1995Allamakee County, Winneshiek County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Aug 28, 1995, 5:28 PM CDT for Allamakee County, Winneshiek County, Iowa. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1995, 5:28 PM CDT (22:28 UTC)
Expired
Aug 28, 1995, 5:58 PM CDT
In force
30 min
Issued by
NWS Des Moines, IA
Area
Whole counties

Counties Allamakee County, IA, Winneshiek County, IA

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 207 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, Davenport, at 12:00Z on 1995-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 872 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, Davenport, at 12:00Z on 1995-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
872 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1233 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 5:05 PM CDTSevere Thunderstorm WarningDMXWorth35 min
Aug 28, 5:19 PM CDTSevere Thunderstorm WarningDMXHancock31 min
Aug 28, 5:25 PM CDTSevere Thunderstorm WarningDMXKossuth31 min
Aug 28, 6:18 PM CDTSevere Thunderstorm WarningDMXCerro Gordo17 min
Aug 28, 6:52 PM CDTSevere Thunderstorm WarningDMXChickasaw33 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.