An MCS moved into the state in the early morning hours from Minnesota, producing heavy rainfall across large portions of north-central Iowa.  Highest amounts reported were generally in the 4-4.50 range with a 4.60 report in Winnebago county.  The MCS progressed generally S and SSE across central Iowa through the morning hours and was able to strengthen enough by the early afternoon to produce wind damage reports in far south central Iowa, including a few large trees, overturned campers, and downed power lines.

Heavy Rain in WINNEBAGO, IOWA
From 24-JUL-15 02:00:00 to 24-JUL-15 07:45:00 (CST-6)
Location: FOREST CITY ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported heavy rainfall from morning thunderstorms of 4.60 inches of rain.  Ending at 8:45am.

Heavy Rain in BUTLER, IOWA
From 24-JUL-15 07:00:00 to 24-JUL-15 16:15:00 (CST-6)
Location: KESLEY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported heavy rainfall from thunderstorms earlier today of 1.60 inches.

Heavy Rain in GRUNDY, IOWA
From 24-JUL-15 07:00:00 to 24-JUL-15 16:19:00 (CST-6)
Location: FERN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported heavy rainfall from thunderstorms earlier today of 2.70 inches.

Heavy Rain in CERRO GORDO, IOWA
From 24-JUL-15 02:00:00 to 24-JUL-15 20:00:00 (CST-6)
Location: CLEAR LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter at reported heavy rainfall storm total of 4.39 inches at Clear Creek Elementary.  This is an updated total from earlier this morning.

Heavy Rain in GRUNDY, IOWA
From 24-JUL-15 07:00:00 to 24-JUL-15 20:30:00 (CST-6)
Location: GRUNDY CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KWWL-TV reported heavy rainfall from thunderstorms earlier today of 2.34 inches.

Heavy Rain in CERRO GORDO, IOWA
From 24-JUL-15 02:00:00 to 24-JUL-15 06:00:00 (CST-6)
Location: CLEAR LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported heavy rainfall of 3.08 inches with approximately 1.00 inch in the last 15 minutes.  Ponding of water at intersections and grassy areas.

Heavy Rain in CERRO GORDO, IOWA
From 24-JUL-15 02:00:00 to 24-JUL-15 07:43:00 (CST-6)
Location: CLEAR LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured 3.60 inches of storm total rainfall.

Heavy Rain in CERRO GORDO, IOWA
From 24-JUL-15 02:00:00 to 24-JUL-15 08:56:00 (CST-6)
Location: CLEAR LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported storm total heavy rainfall of 4.19 inches.

Heavy Rain in CERRO GORDO, IOWA
From 23-JUL-15 23:00:00 to 24-JUL-15 09:21:00 (CST-6)
Location: (MCW)MASON CITY MUNI
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Mason City Municipal Airport ASOS reported heavy rainfall of 4.13 inches since midnight.

Heavy Rain in WORTH, IOWA
From 23-JUL-15 10:30:00 to 24-JUL-15 10:30:00 (CST-6)
Location: NORTHWOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Coop observer reported heavy rainfall of 2.82 inches over the last 24 hours.

Thunderstorm Wind in APPANOOSE, IOWA
From 24-JUL-15 12:45:00 to 24-JUL-15 12:45:00 (CST-6)
Location: MOULTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 4 inch diameter tree branches down in and around Moulton.

Heavy Rain in GRUNDY, IOWA
From 24-JUL-15 07:00:00 to 24-JUL-15 16:00:00 (CST-6)
Location: FERN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported heavy rainfall of 2.85 inches.

Thunderstorm Wind in WAPELLO, IOWA
From 24-JUL-15 12:15:00 to 24-JUL-15 12:15:00 (CST-6)
Location: RUTLEDGE
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 20 inch diameter tree down.  Numerous large limbs down as well with torrential rain.

Hail in WINNEBAGO, IOWA
From 24-JUL-15 03:50:00 to 24-JUL-15 03:50:00 (CST-6)
Location: THOMPSON
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Public report of golf ball sized hail relayed via the Winnebago County Sheriff.

Flash Flood in CERRO GORDO, IOWA
From 24-JUL-15 08:11:00 to 24-JUL-15 11:40:00 (CST-6)
Location: CLEAR LAKE
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law Enforcement reported that 10th Ave North has been barricaded due to rapidly flowing water approximately 6 or deeper from the storm.

Thunderstorm Wind in APPANOOSE, IOWA
From 24-JUL-15 12:27:00 to 24-JUL-15 12:27:00 (CST-6)
Location: WALNUT CITY
Magnitude: 60.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: State Official

State official reported a camper turned over at Rathbun Lake - Island View Park.  Time was estimated via radar.

Thunderstorm Wind in APPANOOSE, IOWA
From 24-JUL-15 12:35:00 to 24-JUL-15 12:35:00 (CST-6)
Location: CENTERVILLE
Magnitude: 58.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Appanoose County Sheriff reported power lines and trees down in the town of Centerville.  Time was estimated via radar.

Thunderstorm Wind in DAVIS, IOWA
From 24-JUL-15 12:35:00 to 24-JUL-15 12:35:00 (CST-6)
Location: DRAKESVILLE
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Public reported several power lines down due to strong winds about 1 mile north of Drakesvile.