A very humid airmass was in place over Iowa as southerly flow drew moisture north from the remnants of former Hurricane Alex.  Precipitable water values rose to over 2 inches over most of the CWA with most between 2.2 and 2.85 inches.  These values represent record high values. Instability was marginal with 1000-2000 J/kg of CAPE available.  The atmospheric column was nearly saturated to above the freezing level, which was at 16,500 feet.  Very little lightning occurred as the rain was mainly tropical in nature.  A band of moderate to heavy rain developed from southwest through central into northeast Iowa.  A narrow line of strong thunderstorms developed from southeast Wayne County, northeast through Appanoose County, into northwest Wapello County.  Rainfall rates were 1 to 2 inches per hour.  At the Rathbun dam, in Appanoose County, 6.89 inches of rain fell in a few hours.  West of Seymour in Wayne County, 4 inches was recorded.  Flash flooding occurred from Appanoose County northeast into Wapello County.  Water was flowing over roads over a foot deep northeast of Blakesburg in Wapello County.  Flash flooding was also reported with roads under water southeast of Rathbun Lake in Appanoose County.

Flash Flood in APPANOOSE, IOWA
From 04-JUL-10 21:15:00 to 05-JUL-10 02:30:00 (CST-6)
Location: DARBYVILLE
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water was reported over the road on J5T between Rathbun Lake and Walnut City.

Heavy Rain in APPANOOSE, IOWA
From 04-JUL-10 20:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: RATHBUN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Rainfall since last night was 6.89 inches.  Rainfall resulted in flash flooding south of Rathbun Lake.  See Appanoose County flash flood event in this report.

Heavy Rain in BREMER, IOWA
From 04-JUL-10 21:00:00 to 05-JUL-10 08:08:00 (CST-6)
Location: DENVER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Rainfall of 2.84 inches received from KWWL.

Heavy Rain in TAMA, IOWA
From 04-JUL-10 21:00:00 to 05-JUL-10 08:08:00 (CST-6)
Location: TOLEDO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Rainfall of 1.36 inches received from KWWL.

Heavy Rain in BLACK HAWK, IOWA
From 04-JUL-10 16:00:00 to 05-JUL-10 10:45:00 (CST-6)
Location: FINCHFORD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Total rainfall received from KWWL of 3.25 inches.

Heavy Rain in APPANOOSE, IOWA
From 04-JUL-10 20:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: CENTERVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall overnight was 3.38 inches.

Heavy Rain in BLACK HAWK, IOWA
From 04-JUL-10 16:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: WATERLOO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall overnight was 2.82 inches.

Heavy Rain in MARION, IOWA
From 04-JUL-10 14:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: PELLA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall overnight was 2.76 inches.

Heavy Rain in MARION, IOWA
From 04-JUL-10 14:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: PELLA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall overnight was 2.49 inches.

Heavy Rain in TAYLOR, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: NEW MARKET
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Twenty four hour rainfall total of 2.38 inches.

Heavy Rain in CASS, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: ATLANTIC
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Twenty four hour rainfall total of 2.17 inches.

Heavy Rain in BLACK HAWK, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: CEDAR FALLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Twenty four hour rainfall total of 2.07 inches.

Flash Flood in WAPELLO, IOWA
From 04-JUL-10 22:30:00 to 05-JUL-10 02:30:00 (CST-6)
Location: BLAKESBURG ARPT
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Law Enforcement

More than a foot of running water over 215th Ave between Highway 34 and Bluegrass Road.

Heavy Rain in GUTHRIE, IOWA
From 03-JUL-10 08:20:00 to 04-JUL-10 08:20:00 (CST-6)
Location: NORTH BRANCH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall for the last 24 hours 1.10 inches.

Heavy Rain in MONROE, IOWA
From 04-JUL-10 20:00:00 to 05-JUL-10 02:16:00 (CST-6)
Location: ALBIA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall since 2000 CST Sunday night was 2.96 inches.

Heavy Rain in APPANOOSE, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: DARBYVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Twenty four hour rainfall total of 4.00 inches.

Heavy Rain in HAMILTON, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: STRATFORD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Twenty four hour rainfall total of 1.57 inches.

Heavy Rain in WAYNE, IOWA
From 04-JUL-10 06:00:00 to 05-JUL-10 06:00:00 (CST-6)
Location: SEYMOUR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four inches of rain in the past 24 hours.

Heavy Rain in MAHASKA, IOWA
From 04-JUL-10 21:00:00 to 05-JUL-10 07:00:00 (CST-6)
Location: OSKALOOSA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Report of 2.25 inches of rain from KCRG.

Heavy Rain in BLACK HAWK, IOWA
From 04-JUL-10 21:00:00 to 05-JUL-10 09:52:00 (CST-6)
Location: WATERLOO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Precipitation report from KWWL studio of 1.90 inches.