Severe Weather Strikes 05/18/97

An outbreak of severe thunderstorms occurred on May 18th, 1997 across our County Warning Area (CWA). Large hail up to 4.5" in diameter was reported with numerous reports of 1.75" inch hail. Some brief tornadoes also occurred. Below, you will see the satellite picture and a surface analysis overlaid at about the time a tornado was reported. We also had a Tornado Vortex Signature (TVS). We have included a couple of scans from our Doppler radar here. Our Local Storm Report is listed below the satellite picture.

May 18th, 1997 Storm Pictures

Jim W. Lee took the following pictures.

21Z Satellite Picture May 18th, 1997

Spotter Pictures

(C) 1997 James M. Deason(C) 1997 James M. Deason

The pictures above are from James M. Deason and courtesy of him. Thanks!

The picture on the left is a possible wall cloud at 4:53 PM taken from a location 2 miles NNE of Hartwick. The picture on the right is looking NNE into southern Benton County, IA. It is ~5:20 PM near Belle Plaine.

PRELIMINARY LOCAL STORM REPORT...UPDATED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
100 PM CDT MON MAY 19 1997

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

0335 PM VINTON IA 1.00 INCH HAIL
05/18/97 BENTON

0350 PM VAN HORNE IA 1.75 INCH HAIL
05/18/97 BENTON

0350 PM VAN HORNE IA FUNNEL CLOUD
05/18/97 BENTON

0405 PM SHELLSBURG IA 1.75 INCH HAIL
05/18/97 BENTON GOLFBALL SIZE HAIL

0405 PM 3 S VINTON IA 1.75 INCH HAIL
05/18/97 BENTON GOLFBALL SIZE HAIL

0405 PM 2 NORTH VINTON IA 1.75 INCH HAIL
05/18/97 BENTON GOLF BALL SIZE

0415 PM CEDAR RAPIDS IA 1.00 INCH HAIL
05/18/97 LINN QUARTER SIZE HAIL

0435 PM MOUNT VERNON IA 3 FUNNEL CLOUDS
05/18/97 LINN

0440 PM NEAR LISBON IA TORNADO
05/18/97 LINN

0441 PM WEST OF MECHANICSVILLE IA TORNADO ON GROUND
05/18/97 CEDAR

0444 PM COUNTY E45 & X45 IA FUNNEL ALOFT
05/18/97 JONES

0450 PM FARLEY IA 0.75 INCH HAIL
05/18/97 DUBUQUE

0450 PM WORTHINGTON IA 0.75 INCH HAIL
05/18/97 DUBUQUE

0500 PM PEOSTA IA 1.OO INCH HAIL
05/18/97 DUBUQUE

0505 PM 3 N OXFORD JUNCTION IA 1.75 INCH HAIL
05/18/97 JONES GOLF BALL

0510 PM PEOSTA IA 1.00 INCH HAIL
05/18/97 DUBUQUE

0515 PM DEWITT IA 0.75 INCH HAIL
05/18/97 CLINTON DIME SIZE

0520 PM VAN HORNE IA 1.75 INCH HAIL
05/18/97 BENTON GOLFBALL SIZE HAIL

0530 PM 2 NW MAQUOKETA IA 1.00 INCH HAIL
05/18/97 JACKSON

0530 PM MOUNT VERNON IA WIND DAMAGE
05/18/97 LINN NEW GRAIN BIN DESTROYED
OLD OUTBUILDINGS DAMAGED

0532 PM DYERSVILLE IA 1.00 INCH HAIL
05/18/97 DUBUQUE

0543 PM WEST AMANA IA 1.00 INCH HAIL
05/18/97 IOWA

0532 PM FARLEY IA 1.00 INCH HAIL
05/18/97 DUBUQUE

0555 PM GRAF IA 0.75 INCH HAIL
05/18/97 DUBUQUE

0600 PM DUBUQUE IA 0.75 INCH HAIL
05/18/97 DUBUQUE

0600 PM) COGGON IA 2.00 INCH HAIL
05/18/97 LINN NUMEROUS REPORTS OF HAIL
DAMAGE

0600 PM FAIRFAX IA 70 MPH WIND GUST
05/18/97 LINN TREE DAMAGE

0605 PM HOPKINTON IA 4.50 INCH HAIL
05/18/97 DELAWARE SOFTBALL SIZE HAIL

0605 PM BUCK CREEK IA 4.50 HAIL
05/18/97 DELAWARE HOLES IN HOUSE ROOF
EXTENSIVE DAMAGE TO HOUSE

0615 PM THOMSON IL 1.00 INCH HAIL
05/18/97 CARROLL

0630 PM PEOSTA IA 1.75 INCH HAIL
05/18/97 DUBUQUE GOLF BALL

0635 PM OXFORD IA 1.75 INCH HAIL
05/18/97 JOHNSON GOLF BALL SIZE HAIL

0635 PM OXFORD IA 1.75 INCH HAIL
05/18/97 JOHNSON GOLFBALL SIZE
BROKE WINDSHIELD

0642 PM CORALVILLE IA) 1.75 INCH HAIL
05/18/97 JOHNSON GOLFBALL SIZE

0642 PM 1 SW IOWA CITY IA FUNNEL CLOUD
05/18/97 JOHNSON

0645 PM IOWA CITY IA 2.75 INCH HAIL
05/18/97 JOHNSON BASEBALL SIZE HAIL
15 MINUTE IN DURATION

0645 PM IOWA CITY IA 2.75 INCH HAIL
05/18/97 JOHNSON BASEBALL SIZE HAIL

0647 PM IOWA CITY IA 2.50 INCH HAIL
05/18/97 JOHNSON TENNIS BALL SIZE
BROKE FIBERGLASS AWNING

0650 PM DUBUQUE IA 1.75 INCH HAIL
05/18/97 DUBUQUE GOLFBALL SIZE HAIL

0650 PM EAST DUBUQUE IL 1.75 INCH HAIL
05/18/97 JO DAVIESS GOLFBALL SIZE HAIL

0652 PM SOLON IA FUNNEL CLOUD
05/18/97 JOHNSON

0652 PM SOLON IA FUNNEL ALOFT
05/18/97 JOHNSON

0712 PM 4 S TIPTON IA FUNNEL CLOUD
05/18/97 CEDAR

0723 PM 1/2 S ROCHESTER IA 1.00 INCH HAIL
05/18/97 CEDAR QUARTER SIZE HAIL

0758 PM DAVENPORT IA 0.75 INCH HAIL
05/18/97 SCOTT 7TH & WARREN

0758 PM DAVENPORT IA 1.00 INCH HAIL
05/18/97 SCOTT

0800 PM BETTENDORF IA TORNADO
05/18/97 SCOTT 18TH & MIDDLE ROAD

0805 PM EAST MOLINE IL 1.00 INCH HAIL
05/18/97 ROCK ISLAND QUARTER SIZE HAIL

0805 PM EAST MOLINE IL 1.5O INCH HAIL
05/18/97 ROCK ISLAND

0808 PM EAST MOLINE IL 1.75 INCH HAIL
05/18/97 ROCK ISLAND GOLFBALL SIZE HAIL

0810 PM EAST MOLINE IL 1.50 INCH HAIL
05/18/97 ROCK ISLAND

0810 PM COAL VALLEY IL FUNNEL CLOUD
05/18/97 ROCK ISLAND

0811 PM SILVIS IL 0.75 INCH HAIL
05/18/97 ROCK ISLAND

0814 PM BETTENDORF IA 0.75 INCH HAIL
05/18/97 SCOTT DIME SIZE HAIL

0817 PM COLONA - GREEN ROCK IL 1.OO INCH HAIL
05/18/97 HENRY

0824 PM COLONA - GREEN ROCK IL 0.75 INCH HAIL
05/18/97 HENRY

0825 PM MILAN IL 3.00 INCH HAIL
05/18/97 ROCK ISLAND

0830 PM SMITHSHIRE IL TORNADO
05/18/97 WARREN BRIEF TORNADO TOUCHDOWN
NO DAMAGE

0835 PM 4 N GALVA IL FUNNEL CLOUD
05/18/97 HENRY

0839 PM 1 W ANNAWAN IL FUNNEL CLOUD
05/18/97 HENRY

0841 PM MOLINE IL 0.75 INCH HAIL
05/18/97 ROCK ISLAND

0850 PM SILVIS IL FUNNEL CLOUD
05/18/97 ROCK ISLAND

0855 PM MANLIUS IL TORNADO
05/18/97 BUREAU

0904 PM 2 W PRINCETON IL 1.75 INCH HAIL
05/18/97 BUREAU

0906 PM 1 W SMITHSHIRE IL FUNNEL CLOUD
05/18/97 WARREN

0909 PM PRINCETON IL 1.50 INCH HAIL
05/18/97 BUREAU

0911 PM PRINCETON IL 1.00 INCH HAIL
05/18/97 BUREAU

NWSO QUAD CITIES IA/IL STAFF

 


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