Alert archive / Iowa / Tornado Warnings in 1995

Tornado Warning 34, NWS Des Moines, IA

June 6, 1995Cerro Gordo County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 6, 1995, 7:18 PM CDT for Cerro Gordo County, Iowa. It was in force for 32 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, 7:18 PM CDT (00:18 UTC)
Expired: Jun 6, 1995, 7:50 PM CDT
In force: 32 min
Issued by: NWS Des Moines, IA
Area: Whole counties

County Cerro Gordo County, IA

The radar

The Des Moines radar (KDMX), 155 km from the middle of the area, began a volume at 00:20 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

Time	Report	Where	Remark
Jun 6, 7:21 PM CDT	Tornado F1	Mason City Airport, 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

Minneapolis, MN (KMPX), launched 00:00Z, 0.3 hours before the alert went out and 198 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 433 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 962 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDSM 070017
TORDSM
IAC033-070050-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
718 PM CDT TUE JUN 6 1995

* TORNADO WARNING FOR
  CERRO GORDO COUNTY - NORTH CENTRAL IOWA

* UNTIL 750 PM CDT
 
* SOME TOWNS AFFECTED
    MASON CITY
    CLEAR LAKE

* AT 717 PM CDT RADAR INDICATED A TORNADO JUST NORTH OF THE MASON CITY
  AIRPORT MOVING SOUTHEAST AT 20 MPH.

* THE STORM WILL BE NEAR MASON CITY BY 725 PM.

IF YOU ARE NEAR THIS DANGEROUS STORM...TAKE COVER IMMEDIATELY IN THE
LOWEST FLOOR AND INNER MOST ROOM OF A BUILDING.

PYTLAK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 7:00 PM CDT	Severe Thunderstorm Warning	DMX	Winnebago	30 min
Jun 6, 7:03 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	32 min
Jun 6, 7:33 PM CDT	Tornado Warning	DMX	Franklin	32 min
Jun 6, 7:45 PM CDT	Severe Thunderstorm Warning	DMX	Floyd	35 min
Jun 6, 8:04 PM CDT	Tornado Warning	DMX	Franklin	31 min
Jun 6, 8:22 PM CDT	Severe Thunderstorm Warning	DMX	Wright	33 min
Jun 6, 8:35 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hardin	30 min
Jun 6, 11:25 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton	35 min
Jun 7, 3:14 AM CDT	Severe Thunderstorm Warning	DMX	Emmet	46 min
Jun 7, 4:09 PM CDT	Severe Thunderstorm Warning	DMX	Winneshiek	51 min

Nearby

Tornado Warnings in Iowa, 1995 Every tornado warning in 1995 Tornadoes 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.