Overview
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A thunderstorm rapidly developed near Mt Pleasant Thursday evening into a high precipitating supercell. This storm produced torrential rain, damaging winds, and large hail in Henry and Jefferson counties in Iowa. Additional storms developed along outflow boundaries which produced heavy rain, lightning, and damaging winds to portions of eastern Iowa.
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Storm Reports
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PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1139 PM CDT THU JUL 20 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 PM TSTM WND GST MOUNT PLEASANT MUNICIPA 40.95N 91.52W
07/20/2017 M56.00 MPH HENRY IA AWOS
0709 PM HAIL MOUNT PLEASANT 40.96N 91.55W
07/20/2017 E1.00 INCH HENRY IA AMATEUR RADIO
TIME ESTIMATED FROM RADAR.
0711 PM TSTM WND GST MOUNT PLEASANT 40.96N 91.55W
07/20/2017 E60.00 MPH HENRY IA TRAINED SPOTTER
0711 PM TSTM WND DMG MOUNT PLEASANT 40.96N 91.55W
07/20/2017 HENRY IA TRAINED SPOTTER
LARGE TREE BRANCH DOWN IN TOWN NEAR MCDONALDS.
0711 PM HAIL MOUNT PLEASANT 40.96N 91.55W
07/20/2017 M0.25 INCH HENRY IA TRAINED SPOTTER
VERY HEAVY RAIN FALLING AS WELL.
0716 PM FLASH FLOOD MOUNT PLEASANT 40.96N 91.55W
07/20/2017 HENRY IA TRAINED SPOTTER
TORRENTIAL RAIN WITH WATER GETTING INTO HOTEL BUILDING IN
TOWN.
0723 PM TSTM WND DMG MOUNT PLEASANT 40.96N 91.55W
07/20/2017 HENRY IA TRAINED SPOTTER
DUMPSTER FLIPPED OVER AND A FENCE DOWN NEAR HOTEL.
0728 PM TSTM WND DMG MOUNT PLEASANT 40.96N 91.55W
07/20/2017 HENRY IA PUBLIC
LARGE BARN BLOWN OVER...REPORT VIA KWQC FACEBOOK.
0740 PM HAIL 4 W MOUNT PLEASANT 40.96N 91.62W
07/20/2017 M0.88 INCH HENRY IA PUBLIC
0740 PM TSTM WND GST 4 W MOUNT PLEASANT 40.96N 91.62W
07/20/2017 M55.00 MPH HENRY IA PUBLIC
0740 PM HEAVY RAIN 4 W MOUNT PLEASANT 40.96N 91.62W
07/20/2017 M3.75 INCH HENRY IA PUBLIC
RAIN FELL IN PAST 1 HOUR.
0750 PM TSTM WND DMG 1 N MOUNT PLEASANT 40.97N 91.54W
07/20/2017 HENRY IA TRAINED SPOTTER
LARGE ROAD DETOUR SIGN FLIPPED OVER ALONG WITH A PIECE OF
FENCE BLOWN DOWN.
0753 PM HAIL 1 NW MOUNT PLEASANT 40.97N 91.56W
07/20/2017 E0.25 INCH HENRY IA TRAINED SPOTTER
0811 PM HAIL 1 W WASHINGTON 41.30N 91.70W
07/20/2017 E0.25 INCH WASHINGTON IA TRAINED SPOTTER
0815 PM HAIL WASHINGTON 41.30N 91.69W
07/20/2017 M0.50 INCH WASHINGTON IA AMATEUR RADIO
0830 PM FLASH FLOOD MOUNT PLEASANT 40.96N 91.55W
07/20/2017 HENRY IA LAW ENFORCEMENT
NUMEROUS STREETS IN TOWN INUNDATED WITH WATER. ONE
VEHICLE DISABLED BY WATER AND TOWED IN 500 BLOCK OF N.
LINCOLN ST. TIME ESTIMATED.
0832 PM TSTM WND DMG LOCKRIDGE 40.99N 91.75W
07/20/2017 JEFFERSON IA PUBLIC
DOWNED POWER LINES.
0940 PM HAIL MONTPELIER 41.47N 90.80W
07/20/2017 E1.25 INCH MUSCATINE IA TRAINED SPOTTER
1014 PM TSTM WND GST DAVENPORT MUNICIPAL AIR 41.62N 90.58W
07/20/2017 M47.00 MPH SCOTT IA MESONET
MEASURED ON NWS OFFICE RSOIS.
1017 PM TSTM WND DMG 1 NNW DAVENPORT 41.57N 90.61W
07/20/2017 SCOTT IA TRAINED SPOTTER
LARGE TREE LIMBS DOWN.
1019 PM TSTM WND GST ELDRIDGE 41.64N 90.57W
07/20/2017 E70.00 MPH SCOTT IA NWS EMPLOYEE
1019 PM TSTM WND DMG 4 NNW DAVENPORT 41.61N 90.63W
07/20/2017 SCOTT IA NWS EMPLOYEE
TREES DOWN.
1020 PM HAIL DAVENPORT 41.56N 90.60W
07/20/2017 E0.25 INCH SCOTT IA PUBLIC
JUST NORTH OF KIMBERLY ROAD AND WEST OF DIVISION ST.
1021 PM TSTM WND GST DAVENPORT MUNICIPAL AIR 41.62N 90.58W
07/20/2017 M53.00 MPH SCOTT IA MESONET
NWS OFFICE RSOIS.
1029 PM TSTM WND GST DAVENPORT MUNICIPAL AIR 41.62N 90.58W
07/20/2017 M61.00 MPH SCOTT IA ASOS
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