An EF-1 tornado moved across rural portions of far northeast Fillmore County into southwest Winona County. The tornado started northwest of Rushford (Fillmore County) and was on the ground for about 5 minutes causing minor damage to a house and trees. Several rounds of thunderstorms moved across the area dumping heavy rain. The heavy caused street flooding to occur in Rochester (Olmsted County) with cars becoming trapped in the flood waters.

Hail in OLMSTED, MINNESOTA
From 04-SEP-18 15:50:00 to 04-SEP-18 15:50:00 (CST-6)
Location: VIOLA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash Flood in DODGE, MINNESOTA
From 04-SEP-18 18:45:00 to 04-SEP-18 20:15:00 (CST-6)
Location: HAYFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Runoff from heavy rain caused street flooding to occur in Hayfield.

Flash Flood in MOWER, MINNESOTA
From 04-SEP-18 19:46:00 to 04-SEP-18 20:45:00 (CST-6)
Location: AUSTIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Runoff from heavy rain caused water to go over Interstate 90 in Austin. The Interstate was briefly closed until the water receded.

Heavy Rain in MOWER, MINNESOTA
From 04-SEP-18 14:00:00 to 04-SEP-18 20:49:00 (CST-6)
Location: SARGEANT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Near Waltham, 4.56 inches of rain fell.

Heavy Rain in WABASHA, MINNESOTA
From 04-SEP-18 15:45:00 to 04-SEP-18 22:10:00 (CST-6)
Location: MAPLE SPGS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Near Lake City, 3.9 inches of rain fell.

Heavy Rain in OLMSTED, MINNESOTA
From 04-SEP-18 15:00:00 to 05-SEP-18 04:10:00 (CST-6)
Location: ROCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

On the northwest side of Rochester, 5.9 inches of rain fell.

Heavy Rain in DODGE, MINNESOTA
From 04-SEP-18 15:00:00 to 05-SEP-18 04:00:00 (CST-6)
Location: KASSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Near Kasson, 5.1 inches of rain fell.

Heavy Rain in WABASHA, MINNESOTA
From 04-SEP-18 15:50:00 to 05-SEP-18 04:40:00 (CST-6)
Location: WABASHA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Near Wabasha, 4.92 inches of rain fell.

Tornado in FILLMORE, MINNESOTA
From 04-SEP-18 20:05:00 to 04-SEP-18 20:06:00 (CST-6)
Location: RUSHFORD VLG
Tornado F-scale: EF1
Property damage: 2.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS Storm Survey found that an EF-1 tornado started in far northern Fillmore County northwest of Rushford near the intersection of County Highway 27 and 431st Avenue. The tornado only produced some very minor damage before moving into Winona County.

Tornado in WINONA, MINNESOTA
From 04-SEP-18 20:06:00 to 04-SEP-18 20:12:00 (CST-6)
Location: HART
Tornado F-scale: EF1
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS Storm Survey found that an EF-1 tornado that started in Fillmore County, entered Winona County southwest of Hart near County Highway 25. The tornado then traveled northeast across rural areas before ending along State Highway 43 between Hart and Interstate 90. The tornado had an intermittent damage path with only some minor damage to one home and some trees.

Heavy Rain in DODGE, MINNESOTA
From 04-SEP-18 15:00:00 to 05-SEP-18 04:00:00 (CST-6)
Location: MANTORVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

In Mantorville, 4.17 inches of rain fell.

Heavy Rain in OLMSTED, MINNESOTA
From 04-SEP-18 15:10:00 to 05-SEP-18 04:10:00 (CST-6)
Location: ROCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

On the northeast side of Rochester, 5.66 inches of rain fell.

Heavy Rain in OLMSTED, MINNESOTA
From 04-SEP-18 15:20:00 to 05-SEP-18 04:10:00 (CST-6)
Location: ROCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

On the southeast side of Rochester, 6.25 inches of rain fell.

Heavy Rain in OLMSTED, MINNESOTA
From 04-SEP-18 15:00:00 to 05-SEP-18 04:10:00 (CST-6)
Location: ROCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

On the north side of Rochester, 6.02 inches of rain fell.

Flood in MOWER, MINNESOTA
From 05-SEP-18 11:15:00 to 05-SEP-18 20:55:00 (CST-6)
Location: MAPLEVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Runoff from heavy rain pushed Turtle Creek out of its banks near Austin. The creek crested just over flood stage at 10.66 feet on September 5th.

Flash Flood in WABASHA, MINNESOTA
From 04-SEP-18 18:43:00 to 04-SEP-18 20:15:00 (CST-6)
Location: ZUMBRO FALLS
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 77.00K
Reported by: Law Enforcement

Runoff from heavy rain caused flooding to occur across portions of Wabasha County. Water was over parts of State Highway 60 and some secondary roads had washouts.

Flash Flood in OLMSTED, MINNESOTA
From 04-SEP-18 17:32:00 to 04-SEP-18 20:15:00 (CST-6)
Location: SIMPSON
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Runoff from heavy rain caused street flooding to occur in portions of Rochester. Cars became stalled in the flood waters on the northwest side of the city. Part of an intersection of two city streets was partially washed out. Flooding also occurred in Byron where roads were closed.