A line of severe thunderstorms moved across southeast Minnesota during the late afternoon of July 19th. These storms produced two EF-1 tornadoes. The first touched down in the Chester Woods Park near Chester (Olmsted County) and did extensive tree damage in the park. The second tornado touched down southeast of Wykoff (Fillmore County) damaging trees, crops and a barn. The damaging winds did extensive damage to a turkey farm near Claremont (Dodge County) and blew down trees south of Altura (Winona County). During the late evening of the 19th into the early morning hours of the 20th, thunderstorms with heavy rain produced some mudslides near Minneiska (Winona County), Homer (Winona County) and northwest of La Crescent (Houston County).

Tornado in OLMSTED, MINNESOTA
From 19-JUL-17 16:07:00 to 19-JUL-17 16:08:00 (CST-6)
Location: CHESTER
Tornado F-scale: EF1
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado touched down southeast of Rochester and produced intermittent damage as it moved east through Chester Woods Park. Extensive tree damage occurred along parts of the short path in the wooded areas of the park. The park superintendent estimated between 4 and 10 acres of trees were flattened in the park. Near the park's beach, downed trees landed on the beach house and a fence.

Heavy Rain in WINONA, MINNESOTA
From 19-JUL-17 16:10:00 to 20-JUL-17 03:30:00 (CST-6)
Location: WINONA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

In Winona, 4.65 inches of rain fell.

Thunderstorm Wind in WINONA, MINNESOTA
From 19-JUL-17 16:25:00 to 19-JUL-17 16:25:00 (CST-6)
Location: ST CHARLES
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines were blown down in St. Charles and a newly constructed baseball dugout was destroyed.

Thunderstorm Wind in DODGE, MINNESOTA
From 19-JUL-17 15:28:00 to 19-JUL-17 15:28:00 (CST-6)
Location: CLAREMONT
Magnitude: 67.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Newspaper

A turkey farm north of Claremont sustained roof damage to two buildings, but no turkeys were hurt. Power lines were also blown down.

Heavy Rain in HOUSTON, MINNESOTA
From 19-JUL-17 16:50:00 to 20-JUL-17 03:30:00 (CST-6)
Location: MOUND PRAIRIE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Near Mound Prairie, 3.88 inches of rain fell.

Flood in WINONA, MINNESOTA
From 19-JUL-17 17:40:00 to 20-JUL-17 00:05:00 (CST-6)
Location: ST CHARLES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Runoff from heavy rains pushed the Whitewater River out of its banks in the Whitewater State Park. The river crested a foot and a half above the flood stage at 15 feet.

Flash Flood in HOUSTON, MINNESOTA
From 20-JUL-17 03:26:00 to 20-JUL-17 05:30:00 (CST-6)
Location: RIVER JCT
Flood cause: Heavy Rain
Property damage: 12.00K
Crop damage: 2.00K
Reported by: Law Enforcement

Locally heavy rains caused a mudslide to occur west of La Crescent. The slide covered Burns Valley Road near the Pine Creek Golf Course.

Thunderstorm Wind in DODGE, MINNESOTA
From 19-JUL-17 15:33:00 to 19-JUL-17 15:33:00 (CST-6)
Location: CLAREMONT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An estimated 65 mph wind gust occurred just south of Claremont.

Thunderstorm Wind in DODGE, MINNESOTA
From 19-JUL-17 15:35:00 to 19-JUL-17 15:35:00 (CST-6)
Location: CLAREMONT
Magnitude: 57.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Trees were uprooted and a roof blown off a building northeast of Claremont.

Thunderstorm Wind in DODGE, MINNESOTA
From 19-JUL-17 15:35:00 to 19-JUL-17 15:35:00 (CST-6)
Location: CLAREMONT
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A building sustained damage northeast of Claremont.

Thunderstorm Wind in OLMSTED, MINNESOTA
From 19-JUL-17 16:12:00 to 19-JUL-17 16:12:00 (CST-6)
Location: EYOTA
Magnitude: 50.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown down in Eyota. A fire was started next to a home after a tree fell on top of a power line.

Thunderstorm Wind in OLMSTED, MINNESOTA
From 19-JUL-17 16:00:00 to 19-JUL-17 16:00:00 (CST-6)
Location: ROCHESTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An estimated 65 mph wind gust occurred in Rochester.

Flood in OLMSTED, MINNESOTA
From 19-JUL-17 16:21:00 to 19-JUL-17 17:50:00 (CST-6)
Location: ROCHESTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Street flooding occurred in Rochester near the hospital.

Tornado in FILLMORE, MINNESOTA
From 19-JUL-17 16:25:00 to 19-JUL-17 16:28:00 (CST-6)
Location: PRESTON FLLMR ARPT
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 10.00K
Reported by: NWS Storm Survey

An EF-1 tornado touched down southeast of Wykoff and produced intermittent damage as it moved east along County Road 117. Most of the damage was to trees and crops with one barn sustaining minor damage.

Flash Flood in WINONA, MINNESOTA
From 19-JUL-17 23:53:00 to 20-JUL-17 02:00:00 (CST-6)
Location: MINNEISKA
Flood cause: Heavy Rain
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Locally heavy rains caused a mudslide to occur near Minneiska that covered U.S. Highway 61.

Flash Flood in WINONA, MINNESOTA
From 20-JUL-17 00:19:00 to 20-JUL-17 02:30:00 (CST-6)
Location: HOMER
Flood cause: Heavy Rain
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Locally heavy rains caused a mudslide to occur near Homer. The slide covered the southbound lanes of U.S. Highway 61 near County Road 15.