A strong cold front swept across central and northeast South Dakota bringing many severe thunderstorms to the area. Hail larger than baseballs along with damaging winds in excess of 70 mph occurred across parts of the area.

Hail in CORSON, SOUTH DAKOTA
From 08-JUL-09 21:15:00 to 08-JUL-09 21:15:00 (MST-7)
Location: ATHBOY
Magnitude: 1.75 
Reported by: Public

Hail in POTTER, SOUTH DAKOTA
From 09-JUL-09 00:30:00 to 09-JUL-09 00:30:00 (CST-6)
Location: GORMAN
Magnitude: 0.88 
Reported by: Public

Hail in CLARK, SOUTH DAKOTA
From 09-JUL-09 00:31:00 to 09-JUL-09 00:31:00 (CST-6)
Location: CLARK CO ARPT
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in CLARK, SOUTH DAKOTA
From 09-JUL-09 01:00:00 to 09-JUL-09 01:00:00 (CST-6)
Location: GARDEN CITY
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in DEWEY, SOUTH DAKOTA
From 08-JUL-09 19:26:00 to 08-JUL-09 19:26:00 (MST-7)
Location: ISABEL
Magnitude: 0.75 
Reported by: Fire Department/Rescue

Hail in CAMPBELL, SOUTH DAKOTA
From 08-JUL-09 21:00:00 to 08-JUL-09 21:00:00 (CST-6)
Location: HERREID MUNI ARPT
Magnitude: 0.75 
Reported by: Public

Hail in DEWEY, SOUTH DAKOTA
From 08-JUL-09 20:00:00 to 08-JUL-09 20:00:00 (MST-7)
Location: FIRESTEEL
Magnitude: 1.75 
Reported by: Public

Hail in POTTER, SOUTH DAKOTA
From 08-JUL-09 21:08:00 to 08-JUL-09 21:08:00 (CST-6)
Location: GORMAN
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in CODINGTON, SOUTH DAKOTA
From 09-JUL-09 01:19:00 to 09-JUL-09 01:19:00 (CST-6)
Location: WALLACE
Magnitude: 1.25 
Reported by: Law Enforcement

Hail in HAND, SOUTH DAKOTA
From 09-JUL-09 03:03:00 to 09-JUL-09 03:03:00 (CST-6)
Location: DANFORTH
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 09-JUL-09 01:40:00 to 09-JUL-09 01:40:00 (CST-6)
Location: HIGHMORE
Magnitude: 52.00 EG
Reported by: Law Enforcement

Sixty mph winds downed several tree branches in Highmore.

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 09-JUL-09 01:50:00 to 09-JUL-09 01:50:00 (CST-6)
Location: HIGHMORE
Magnitude: 55.00 MG
Reported by: Mesonet

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 09-JUL-09 02:22:00 to 09-JUL-09 02:22:00 (CST-6)
Location: MILLER
Magnitude: 56.00 MG
Reported by: Emergency Manager

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 08-JUL-09 21:00:00 to 08-JUL-09 21:00:00 (MST-7)
Location: KELDRON
Magnitude: 61.00 EG
Reported by: Department of Highways

Seventy mph winds were estimated by the Highway Department.

Hail in CAMPBELL, SOUTH DAKOTA
From 08-JUL-09 21:10:00 to 08-JUL-09 21:10:00 (CST-6)
Location: HERREID MUNI ARPT
Magnitude: 0.75 
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 08-JUL-09 20:10:00 to 08-JUL-09 20:10:00 (MST-7)
Location: BLACK HORSE
Magnitude: 0.88 
Reported by: Public

Hail in CAMPBELL, SOUTH DAKOTA
From 08-JUL-09 21:15:00 to 08-JUL-09 21:15:00 (CST-6)
Location: HERREID MUNI ARPT
Magnitude: 1.75 
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 08-JUL-09 21:00:00 to 08-JUL-09 21:00:00 (MST-7)
Location: ATHBOY
Magnitude: 3.00 
Reported by: Department of Highways

Hail in CORSON, SOUTH DAKOTA
From 08-JUL-09 21:00:00 to 08-JUL-09 21:00:00 (MST-7)
Location: KELDRON
Magnitude: 1.75 
Reported by: Public

Hail in POTTER, SOUTH DAKOTA
From 08-JUL-09 21:30:00 to 08-JUL-09 21:30:00 (CST-6)
Location: GORMAN
Magnitude: 0.88 
Reported by: Public

Hail in STANLEY, SOUTH DAKOTA
From 08-JUL-09 19:08:00 to 08-JUL-09 19:08:00 (MST-7)
Location: ORTON
Magnitude: 1.00 
Reported by: Trained Spotter