Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 46, NWS Des Moines, IA

June 6, 1995Franklin County, Hardin County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 6, 1995, 8:35 PM CDT for Franklin County, Hardin County, Iowa. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 6, 1995, 8:35 PM CDT (01:35 UTC)
Expired
Jun 6, 1995, 9:05 PM CDT
In force
30 min
Issued by
NWS Des Moines, IA
Area
Whole counties

Counties Franklin County, IA, Hardin County, IA

The radar

The Des Moines radar (KDMX), 100 km from the middle of the area, began a volume at 01:36 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.

What was reported inside it

TimeReportWhereRemark
Jun 6, 8:41 PM CDTTornado F0Iowa Falls, IA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.6 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, Davenport, at 00:00Z on 1995-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 845 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 1995-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
845 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1301 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
9 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 070134 RRA
SVRDSM
IAC069-083-070205-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
835 PM CDT TUE JUN 6 1995

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHERN FRANKLIN COUNTY - NORTH CENTRAL IOWA
  NORTHERN HARDIN COUNTY - CENTRAL IOWA

* UNTIL 905 PM CDT
 
* SOME TOWNS AFFECTED
    BRADFORD
    ACKLEY
    IOWA FALLS

* AT 832 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 40 MILES SOUTH OF
  MASON CITY OR NEAR BRADFORD IN FRANKLIN COUNTY. MOVING SOUTH AT 20
  MPH.

* THE STORM WILL BE NEAR IOWA FALLS AT 850 PM CDT.

  THIS IS A DANGEROUS STORM.  DAMAGING WINDS...LARGE HAIL AND VERY
  HEAVY RAIN ARE POSSIBLE.  DO NOT GO OUTDOORS.


LEWIS
 ^

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 6, 5:20 PM CDT, 3 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
520 PM CDT TUE JUN 6 1995

TIME(CDT)   .....CITY LOCATION.....  ST   ...EVENT/REMARKS...
DATE(CDT)   ....COUNTY LOCATION....

1443 CDT   4W NORTHWOOD              IA   1 INCH DIAMETER HAIL
06/06/95   WORTH COUNTY

MS JUN 95
Local storm report, Jun 6, 5:21 PM CDT, 3 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
520 PM CDT TUE JUN 6 1995

TIME(CDT)   .....CITY LOCATION.....  ST   ...EVENT/REMARKS...
DATE(CDT)   ....COUNTY LOCATION....

1443 C&DT   4W NORTHWOOD              IA   1 INCH DIAMETER HAIL
06/06/95   WORTH COUNTY

MS JUN 95

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 7:00 PM CDTSevere Thunderstorm WarningDMXWinnebago30 min
Jun 6, 7:03 PM CDTSevere Thunderstorm WarningDMXCerro Gordo32 min
Jun 6, 7:18 PM CDTTornado WarningDMXCerro Gordo32 min
Jun 6, 7:33 PM CDTTornado WarningDMXFranklin32 min
Jun 6, 7:45 PM CDTSevere Thunderstorm WarningDMXFloyd35 min
Jun 6, 8:04 PM CDTTornado WarningDMXFranklin31 min
Jun 6, 8:22 PM CDTSevere Thunderstorm WarningDMXWright33 min
Jun 6, 11:25 PM CDTSevere Thunderstorm WarningDMXHamilton35 min
Jun 7, 3:14 AM CDTSevere Thunderstorm WarningDMXEmmet46 min
Jun 7, 4:09 PM CDTSevere Thunderstorm WarningDMXWinneshiek51 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.