Strong low pressure tracked from western Kansas to western Wisconsin on April 24-25, 2008. A warm front moving across the region brought heavy rain and flash flooding to areas north of I-80. Then an impressive cold front swept across eastern Iowa and northwest Illinois. This front triggered severe thunderstorms which produced two tornadoes, large hail and damaging winds.

Heavy Rain in DUBUQUE, IOWA
From 25-APR-08 06:30:00 to 25-APR-08 06:30:00 (CST-6)
Location: ASBURY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 2.12 inches of rain overnight.

Heavy Rain in IOWA, IOWA
From 25-APR-08 07:29:00 to 25-APR-08 07:29:00 (CST-6)
Location: MARENGO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall of 2.50 inches flooded farm fields.

Heavy Rain in DUBUQUE, IOWA
From 25-APR-08 08:19:00 to 25-APR-08 08:19:00 (CST-6)
Location: ASBURY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall total of 3.24 inches.

Heavy Rain in CEDAR, IOWA
From 25-APR-08 08:48:00 to 25-APR-08 08:48:00 (CST-6)
Location: LOWDEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer in Lowden reported basements of several homes flooded and small streams and creeks out of their banks.

Hail in DELAWARE, IOWA
From 25-APR-08 13:12:00 to 25-APR-08 13:12:00 (CST-6)
Location: BAILEYS FORD PARK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported penny size hail, very heavy rain and strong gusty winds.

Hail in DELAWARE, IOWA
From 25-APR-08 13:20:00 to 25-APR-08 13:20:00 (CST-6)
Location: DELHI
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail ranging in size from quarter to golf ball were measured in Delhi.

Hail in DELAWARE, IOWA
From 25-APR-08 13:25:00 to 25-APR-08 13:25:00 (CST-6)
Location: EARLVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One inch hail was measured in Earlville.

Hail in DELAWARE, IOWA
From 25-APR-08 13:31:00 to 25-APR-08 13:31:00 (CST-6)
Location: COLESBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nickel size hail was observed in Colesburg.

Hail in DUBUQUE, IOWA
From 25-APR-08 13:41:00 to 25-APR-08 13:41:00 (CST-6)
Location: NEW VIENNA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Ping pong ball size hail was measured near New Vienna.

Hail in LEE, IOWA
From 25-APR-08 14:31:00 to 25-APR-08 14:31:00 (CST-6)
Location: DENMARK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured nickel size hail and estimated winds to near 50 mph near Denmark.

Heavy Rain in DELAWARE, IOWA
From 25-APR-08 13:59:00 to 25-APR-08 13:59:00 (CST-6)
Location: MANCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager reported water running over county roads especially from the southwest to the northeast portions of the county.

Heavy Rain in MUSCATINE, IOWA
From 25-APR-08 14:58:00 to 25-APR-08 14:58:00 (CST-6)
Location: MUSCATINE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported water ponding on city streets in Muscatine.

Thunderstorm Wind in JOHNSON, IOWA
From 25-APR-08 06:45:00 to 25-APR-08 06:45:00 (CST-6)
Location: CORALVILLE RESV
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Siding and a porch railing was blown off a house near Coralville.

Thunderstorm Wind in JOHNSON, IOWA
From 25-APR-08 06:45:00 to 25-APR-08 06:45:00 (CST-6)
Location: NORTH LIBERTY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were blown down near North Liberty.

Flash Flood in LINN, IOWA
From 25-APR-08 06:30:00 to 25-APR-08 06:30:00 (CST-6)
Location: CEDAR RAPIDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported Outlook Drive Southwest was flooded with water to wheel wells of cars.

Flash Flood in IOWA, IOWA
From 25-APR-08 06:41:00 to 25-APR-08 06:41:00 (CST-6)
Location: MARENGO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain flooded farm fields south of Marengo, and streams were running bankfull. A spotter measured rainfall of 2.50 inches.

Flash Flood in DUBUQUE, IOWA
From 25-APR-08 07:45:00 to 25-APR-08 07:45:00 (CST-6)
Location: DYERSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that some roads were closed due to high water in Dyersville.

Flash Flood in DUBUQUE, IOWA
From 25-APR-08 07:45:00 to 25-APR-08 07:45:00 (CST-6)
Location: CENTER GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads were closed due to high water.

Hail in JONES, IOWA
From 25-APR-08 06:20:00 to 25-APR-08 06:20:00 (CST-6)
Location: MARTELLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A deputy sheriff reported nickel size hail between Morley and Martell.

Hail in LINN, IOWA
From 25-APR-08 12:58:00 to 25-APR-08 12:58:00 (CST-6)
Location: PALO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The fire department observed penny size hail near Palo.

Thunderstorm Wind in BUCHANAN, IOWA
From 24-APR-08 22:42:00 to 24-APR-08 22:42:00 (CST-6)
Location: STANLEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Observer reported two augers blown over into a ditch and shingles off a roof 2 miles west of Stanley.

Flash Flood in DELAWARE, IOWA
From 25-APR-08 05:45:00 to 25-APR-08 05:45:00 (CST-6)
Location: MANCHESTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported a few roads washed out in Delaware county, due to small streams overflowing onto some roads.

Flash Flood in BUCHANAN, IOWA
From 25-APR-08 06:30:00 to 25-APR-08 06:30:00 (CST-6)
Location: STANLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Observer reported flash flooding on area roads and 2.38 inches of rain overnight.

Hail in CLINTON, IOWA
From 25-APR-08 15:15:00 to 25-APR-08 15:15:00 (CST-6)
Location: WELTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail the size of quarters were measured near Welton.

Heavy Rain in DELAWARE, IOWA
From 25-APR-08 04:45:00 to 25-APR-08 04:45:00 (CST-6)
Location: EDGEWOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured 4.17 inches of rain in 24 hours near Edgewood.

Thunderstorm Wind in VAN BUREN, IOWA
From 25-APR-08 13:06:00 to 25-APR-08 13:06:00 (CST-6)
Location: MILTON
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two power poles were blown down across Highway 2 about three miles west of Cantril. Winds were estimated at 75 mph.

Thunderstorm Wind in LEE, IOWA
From 25-APR-08 14:40:00 to 25-APR-08 14:40:00 (CST-6)
Location: FT MADISON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported shingles blown off homes and tree branches down near Fort Madison.

Tornado in MUSCATINE, IOWA
From 25-APR-08 14:15:00 to 25-APR-08 14:25:00 (CST-6)
Location: WEST LIBERTY
Tornado F-scale: EF2
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado touched down 5.2 miles northeast of Nichols and tracked to the northeast before lifting 2 miles west of Moscow. The EF2 tornado was on the ground for 6.5 miles, had maximum winds to 115 mph and was 150 yards wide. There were 5 farmsteads that were hit by the tornado, but no injuries were reported. Siding and shingles of two homes were peeled off. Outbuildings were damaged, a machine shed and grain bin destroyed, and a wooden swingset toppled. Utility poles were snapped or blown down, while several trees were snapped or uprooted.

Tornado in HENRY, IOWA
From 25-APR-08 14:08:00 to 25-APR-08 14:10:00 (CST-6)
Location: WINFIELD
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado touched down on the northwest side of Winfield at the Twin Lakes golf course. The EF1 tornado had maximum winds to 90 mph, travelled to the northeast for 1.3 miles, and had a width of 20 yards. At the golf course a large pine tree was snapped, several small trees were uprooted and a wind mill damaged. At a nearby farm, a machine shed had it/s north and east walls blown out with debris carried less than 1/4 mile. A portion of a wooden fence was blown down, and there were also power poles snapped.