Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 90, NWS Quad Cities, IA

August 28, 1995Clayton County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 28, 1995, 7:40 PM CDT for Clayton County, Iowa. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1995, 7:40 PM CDT (00:40 UTC)
Expired
Aug 28, 1995, 8:30 PM CDT
In force
50 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Clayton County, IA

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 153 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 00:00Z on 1995-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 526 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 00:00Z on 1995-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
526 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1668 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDBQ 290040 RRA
SVRDBQ
IAC043-290130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DUBUQUE IA
740 PM CDT MON AUG 28 1995
 
THE NATIONAL WEATHER SERVICE IN DUBUQUE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST IOWA
 
   ...CLAYTON COUNTY
 
AT 737 PM CDT...DOPPLER RADAR OUT OF DAVENPORT IA INDICATED A SEVERE
THUNDERSTORM NEAR THE CLAYTON/FAYETTE COUNTY BORDER 15 MILES NORTHWEST
OF ELKADER...WHICH IS 40 MILES NORTHWEST OF DUBUQUE. THIS STORM WAS
MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. SOME TOWNS IN THE PATH OF
THIS STORM ARE HIGHLAND...ELKADER...AND VOLGA. THESE TOWNS WILL BE
AFFECTED BETWEEN 745 PM AND 830 PM CDT.
 
IF YOU ARE IN THE PATH OF THIS STORM TAKE SHELTER INDOORS IMMEDIATELY.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PR\OTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
HUDSON
NNNN

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 9:05 PM CDTSevere Thunderstorm WarningDVNDelaware37 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.