Severe thunderstorms developed during the afternoon of June 30th across northeast Iowa ahead of a cold front. As these storms moved across the area, they primarily produced strong winds that blew down trees and power lines. Estimated gusts of 75 mph occurred in Garber (Clayton County) with an 80 mph gust estimated in Volga (Clayton County).

Thunderstorm Wind in FAYETTE, IOWA
From 30-JUN-14 13:28:00 to 30-JUN-14 13:28:00 (CST-6)
Location: OELWEIN MUNI ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The automated weather observing equipment at the Oelwein airport measured a wind gust of 58 mph.

Thunderstorm Wind in FAYETTE, IOWA
From 30-JUN-14 13:35:00 to 30-JUN-14 13:35:00 (CST-6)
Location: OELWEIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wind gust of 60 mph was estimated in Oelwein.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 13:57:00 to 30-JUN-14 13:57:00 (CST-6)
Location: STRAWBERRY PT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An estimated wind gust of 60 mph occurred in Strawberry Point.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:00:00 to 30-JUN-14 14:00:00 (CST-6)
Location: VOLGA
Magnitude: 70.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

An estimated wind gust of 80 mph blew down trees and power lines in Volga.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:15:00 to 30-JUN-14 14:15:00 (CST-6)
Location: ELKADER
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were blown down in Elkader.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:16:00 to 30-JUN-14 14:16:00 (CST-6)
Location: GARBER
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

An estimated 75 mph wind gust occurred in Garber.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:25:00 to 30-JUN-14 14:25:00 (CST-6)
Location: GUTTENBURG
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down in Guttenberg.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:19:00 to 30-JUN-14 14:19:00 (CST-6)
Location: OSTERDOCK
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down in Osterdock.

Flash Flood in CLAYTON, IOWA
From 30-JUN-14 14:35:00 to 30-JUN-14 15:03:00 (CST-6)
Location: GUTTENBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Runoff from heavy rain caused water to go over U.S. Highway 52 in Guttenberg.

Flash Flood in CLAYTON, IOWA
From 30-JUN-14 14:40:00 to 30-JUN-14 15:10:00 (CST-6)
Location: OSBORNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Runoff from heavy rain caused water from the Volga River to go over State Highway 13 in the Osborne area.

Thunderstorm Wind in CLAYTON, IOWA
From 30-JUN-14 14:06:00 to 30-JUN-14 14:06:00 (CST-6)
Location: EDGEWOOD
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

Trees and power lines were blown down in Edgewood.

Flash Flood in FAYETTE, IOWA
From 30-JUN-14 16:10:00 to 30-JUN-14 17:00:00 (CST-6)
Location: HAWKEYE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Runoff from heavy rain pushed a small stream out of its banks west of Randalia. This  caused T Avenue between 160th Street and State Highway 93, to be closed due to the flooding.

Flood in CLAYTON, IOWA
From 30-JUN-14 02:30:00 to 30-JUN-14 23:59:00 (CST-6)
Location: ELKADER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Runoff from heavy rain pushed the Turkey River out of its banks in Elkader. The river crested around a foot and a half above the flood stage at 13.52 feet. The river remained above flood stage into July.