Event Summary for 7/8/01:Hot and humid conditions were found over the region with temperatures generally in the 90s and heat indices ranging from 100 to 110 degrees.  A stationary boundary extended along the Interstate 80 corridor.  This boundary was the focus for a narrow line of thunderstorms during the morning, which moved from Cedar Rapids eastward through the Quad Cities producing heavy rain of 1 to 2 inches per hour.  This convection produced an outflow boundary which served as the focus for additional thunderstorm development by early afternoon.  Also, thunderstorms re-developed over Central Iowa by early afternoon and moved east along the stationary front. Enough solar insolation resulted in very unstable conditons with CAPE in excess of 2500 J/KG. Cell mergers resulted in thunderstorms utilizing the pre-existing cold pool and accelerating southeast forming several small scale bow echoes.  Many reports of strong to severe winds were received with wind gusts as high as 75 to 80 mph.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:00:00 to 08-JUL-01 11:00:00 (CST)
Location: PALO
Magnitude: 61 E
Reported by: EMERGENCY MANAGER

Severe winds pushed an empty grain train down the tracks.  Reported  by emergency management.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:02:00 to 08-JUL-01 11:02:00 (CST)
Location: CEDAR RAPIDS
Magnitude: 61 E
Reported by: LAW ENFORCEMENT

70 mph wind gust downed trees and damaged a communications tower.  Reported by law enforcement.

Lightning in LINN, IOWA
From 08-JUL-01 11:02:00 to 08-JUL-01 11:02:00 (CST)
Location: FAIRFAX
Reported by: LAW ENFORCEMENT

Reported by law enforcement.

Thunderstorm Wind in IOWA, IOWA
From 08-JUL-01 11:00:00 to 08-JUL-01 11:00:00 (CST)
Location: SOUTH AMANA
Magnitude: 52 E
Reported by: TRAINED SPOTTER

8 inch limb down.  Reported by trained storm spotter.

Thunderstorm Wind in MUSCATINE, IOWA
From 08-JUL-01 11:33:00 to 08-JUL-01 11:33:00 (CST)
Location: MUSCATINE
Magnitude: 65 M
Reported by: OFFICIAL NWS OBS.

75 mph wind gust.  Reported by cooperative observer.

Thunderstorm Wind in SCOTT, IOWA
From 08-JUL-01 11:40:00 to 08-JUL-01 11:40:00 (CST)
Location: BLUE GRASS
Magnitude: 52 E
Reported by: NWS EMPLOYEE(OFF DUTY)

Several 6 inch limbs downed.  Reported by off duty NWS employee.

Thunderstorm Wind in BENTON, IOWA
From 08-JUL-01 10:10:00 to 08-JUL-01 10:10:00 (CST)
Location: BELLE PLAINE
Magnitude: 57 M
Reported by: EMERGENCY MANAGER

65 mph wind gust.  Reported by emergency management.

Thunderstorm Wind in BENTON, IOWA
From 08-JUL-01 10:25:00 to 08-JUL-01 10:25:00 (CST)
Location: GARRISON
Magnitude: 52 E
Reported by: EMERGENCY MANAGER

Large tree uprooted with numerous limbs down.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:05:00 to 08-JUL-01 11:05:00 (CST)
Location: CEDAR RAPIDS
Magnitude: 52 M
Reported by: BROADCAST MEDIA

60 mph wind gust brought down a one foot diameter tree limb.  Reported by news media.

Hail in SCOTT, IOWA
From 08-JUL-01 11:25:00 to 08-JUL-01 11:25:00 (CST)
Location: PLAINVIEW
Magnitude: 0.88 M
Reported by: AMATEUR RADIO

Nickel sized hail.  Reported by amateur radio.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:10:00 to 08-JUL-01 11:10:00 (CST)
Location: HIAWATHA
Magnitude: 61 E
Reported by: EMERGENCY MANAGER

Large trees and power poles snapped.  Reported by emergency management.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:20:00 to 08-JUL-01 11:20:00 (CST)
Location: SPRINGVILLE
Magnitude: 52 M
Reported by: EMERGENCY MANAGER

60 mph wind gust knocked down tree limbs.  Reported by emergency management.

Thunderstorm Wind in JONES, IOWA
From 08-JUL-01 11:46:00 to 08-JUL-01 11:46:00 (CST)
Location: SCOTCH GROVE
Magnitude: 70 E
Reported by: LAW ENFORCEMENT

Severe wind tore the top off a camper on Highway 38 between Monticello and Wyoming.  Reported by law enforcement.

Thunderstorm Wind in SCOTT, IOWA
From 08-JUL-01 12:05:00 to 08-JUL-01 12:05:00 (CST)
Location: DAVENPORT
Magnitude: 52 E
Reported by: GENERAL PUBLIC

8 inch diameter limb knocked down on power lines on the west side of the city.  Reported by the general public.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:00:00 to 08-JUL-01 11:00:00 (CST)
Location: CEDAR RAPIDS
Magnitude: 52 M
Reported by: EMERGENCY MANAGER

60 mph wind gust.  Reported by trained storm spotter.

Thunderstorm Wind in JOHNSON, IOWA
From 08-JUL-01 11:00:00 to 08-JUL-01 11:00:00 (CST)
Location: IOWA CITY
Magnitude: 52 E
Reported by: EMERGENCY MANAGER

60 mph wind gust.  Reported by law enforcement.

Thunderstorm Wind in CEDAR, IOWA
From 08-JUL-01 11:20:00 to 08-JUL-01 11:20:00 (CST)
Location: TIPTON
Magnitude: 52 E
Reported by: LAW ENFORCEMENT

Large tree limbs downed.  Reported by law enforcement.

Thunderstorm Wind in CEDAR, IOWA
From 08-JUL-01 11:15:00 to 08-JUL-01 11:15:00 (CST)
Location: WEST BRANCH
Magnitude: 61 E
Reported by: LAW ENFORCEMENT

Power lines and trees downed.  Reported by law enforcement.

Thunderstorm Wind in MUSCATINE, IOWA
From 08-JUL-01 12:08:00 to 08-JUL-01 12:08:00 (CST)
Location: MUSCATINE
Magnitude: 65 E
Reported by: EMERGENCY MANAGER

Numerous trees down and debris in streets.  Reported by emergency management.

Thunderstorm Wind in LINN, IOWA
From 08-JUL-01 11:15:00 to 08-JUL-01 11:15:00 (CST)
Location: MT VERNON
Magnitude: 52 E
Reported by: EMERGENCY MANAGER

8 inch limbs downed.  Reported by emergency management.

Thunderstorm Wind in JOHNSON, IOWA
From 08-JUL-01 11:30:00 to 08-JUL-01 11:30:00 (CST)
Location: COUNTYWIDE
Magnitude: 52 E
Reported by: LAW ENFORCEMENT

Tree limbs down throughout the county.  Reported by law enforcement.