Storm Events Database

Storm Events Database

Event Details

Event Flash Flood
-- Flood Cause Heavy Rain
State ILLINOIS
County/Area JO DAVIESS
WFO DVN
Begin Date 08/09/2009 21:45:00 CST-6
Begin Range 2
Begin Azimuth W
Begin Location COUNCIL HILL
Begin Lat/Lon 42.45/-90.35
End Date 08/09/2009 23:45:00 CST-6
End Range 2
End Azimuth SSW
End Location SCALES MOUND
End Lat/Lon 42.45/-90.26
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 0.00K
Episode Narrative A cold front stretching across the upper Midwest, coupled with warm moist air streaming northward across the area, brought scattered showers and isolated thunderstorms to portions of east central Iowa and northern Illinois during the midday hours August 9. Some locations along the Highway 20 corridor saw rainfall amounts ranging from 1 to 2 inches from these storms. Afternoon high temperatures were in the upper 80s to lower 90s.

By late afternoon, showers and thunderstorms began to redevelop along the cold front in western Iowa and spread eastward into the Mid-Mississippi Valley.

During the evening hours, these storms brought widespread rain to the Mid-Mississippi Valley. In addition, several of these storms became severe over eastern Iowa producing winds gusts from 50 to 80 mph around the Cedar Rapids Area.
Event Narrative Heavy rains resulted in flash flooding of some roads in the vicinity of Guilford, IL during the late evening of August 9.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 100.00K 0.00K
APPLE RIVER JO DAVIESS CO. IL 08/09/2009 12:52 CST-6 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
COUNCIL HILL STATION JO DAVIESS CO. IL 08/09/2009 13:15 CST-6 Flash Flood 0 0 100.00K 0.00K
LITTLE YORK WARREN CO. IL 08/09/2009 19:33 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
ROZETTA HENDERSON CO. IL 08/09/2009 19:45 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
BALD BLUFF HENDERSON CO. IL 08/09/2009 20:00 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
LITTLE YORK WARREN CO. IL 08/09/2009 20:03 CST-6 Flash Flood 0 0 0.00K 0.00K
BIG RIVER ST FOREST HENDERSON CO. IL 08/09/2009 20:52 CST-6 Flash Flood 0 0 0.00K 0.00K
COUNCIL HILL JO DAVIESS CO. IL 08/09/2009 21:45 CST-6 Flash Flood 0 0 0.00K 0.00K
Totals: 0 0 100.00K 0.00K