NATIONAL WEATHER SERVICE QUAD CITIES IA IL
340 PM CDT WED APR 21 2004
...APRIL 20TH CLINTON COUNTY TORNADO OVERVIEW...
ON TUESDAY APRIL 20TH BETWEEN 708 PM AND 715 PM, A TORNADO
TOUCHED DOWN IN CENTRAL CLINTON COUNTY ABOUT 4.5 MILES SOUTHWEST
OF DELMAR...OR 5 MILES NORTHWEST OF WELTON. THE TORNADO WAS
ON THE GROUND ABOUT 1.5 MILES AND WAS ABOUT 100 YARDS WIDE, DAMAGING
A BARN AND METAL OUTBUILDING ON A FARM. A GROUND SURVEY OF
THE DAMAGE ESTIMATED THE WIND AT 75 MPH...WHICH WOULD CATEGORIZE
THE TORNADO AS A LOW-END F1 ON THE FUJITA TORNADO DAMAGE SCALE.
Local Storm Report
PRELIMINARY LOCAL STORM REPORT ... SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
348 PM CDT WED APR 21 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0715 PM TORNADO 2 S DELMAR 41.97N 90.61W
04/20/2004 CLINTON IA LAW ENFORCEMENT
BUILDINGS DOWN AT 150TH STREET AND HIGHWAY 61.
0708 PM TORNADO 4 N WELTON 41.97N 90.60W
04/20/2004 CLINTON IA LAW ENFORCEMENT
0558 PM HAIL IOWA CITY 41.66N 91.54W
04/20/2004 0.50 INCH JOHNSON IA TRAINED SPOTTER
0547 PM TORNADO GRANVILLE 41.26N 89.23W
04/20/2004 PUTNAM IL TRAINED SPOTTER
ROOF BLOWN OFF BANK AND TREES DOWN