Alert archive / Iowa / Tornado Warnings in 1992

Tornado Warning 2, NWS Quad Cities, IA

June 19, 1992Clayton County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jun 19, 1992, 5:09 PM CDT for Clayton County, Iowa. It was in force for 36 min. 3 reports 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 19, 1992, 5:09 PM CDT (22:09 UTC)
Expired: Jun 19, 1992, 5:45 PM CDT
In force: 36 min
Issued by: NWS Quad Cities, IA
Area: Whole counties

County Clayton County, IA

What was reported inside it

Time	Report	Where
Jun 19, 5:12 PM CDT	Tornado F0	Clayton, IA
Jun 19, 5:27 PM CDT	Tornado F1	Clayton, IA
Jun 19, 5:45 PM CDT	Hail 1	Clayton, 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 (KSTC), launched 12:00Z, 10.2 hours before the alert went out and 287 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 236 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDBQ 192209
TORDBQ
IAC043-192245-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DUBUQUE IA
509 PM CDT FRI JUN 19 1992
 
THE NATIONAL WEATHER SERVICE IN DUBUQUE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  545 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST IOWA
 
   ...CLAYTON COUNTY
 
AT 508 CDT...RADAR INDICATED A POSSIBLE TORNADO NEAR HIGHLAND IN WESTERN
CLAYTON COUNTY...45 MILES NORTHWEST OF DUBUQUE MOVING SOUTHEAST AT 20
MILES AN HOUR.
 
SOME CITIES IN OR NEAR THE PATH OF THE TORNADO ARE...HIGHLAND AND VOLGA.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS ]AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 5:01 PM CDT	Severe Thunderstorm Warning	DVN	Clayton	29 min
Jun 19, 5:46 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque	29 min
Jun 19, 5:54 PM CDT	Severe Thunderstorm Warning	DVN	Delaware	27 min
Jun 19, 6:10 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines	35 min
Jun 19, 6:46 PM CDT	Severe Thunderstorm Warning	DVN	Jackson	59 min

Nearby

Tornado Warnings in Iowa, 1992 Every tornado warning in 1992 Tornadoes in 1992

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.