A warm front extending across the region was the focus for heavy rain along with severe weather during the evening across far northeast South Dakota. Hail up to the size of quarters along with heavy rains of over 2 inches caused some flooding mainly in Codington and Hamlin counties.

Hail in CODINGTON, SOUTH DAKOTA
From 21-APR-07 19:52:00 to 21-APR-07 19:52:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HAMLIN, SOUTH DAKOTA
From 21-APR-07 19:53:00 to 21-APR-07 19:53:00 (CST-6)
Location: THOMAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CODINGTON, SOUTH DAKOTA
From 21-APR-07 19:58:00 to 21-APR-07 19:58:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, SOUTH DAKOTA
From 21-APR-07 20:00:00 to 21-APR-07 20:00:00 (CST-6)
Location: STOCKHOLM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, SOUTH DAKOTA
From 21-APR-07 20:05:00 to 21-APR-07 20:05:00 (CST-6)
Location: MILBANK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in CODINGTON, SOUTH DAKOTA
From 21-APR-07 20:10:00 to 22-APR-07 02:00:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rains of 2 to 2.50 inches caused flash flooding in and around Watertown. Many streets were flooded in town along with several roads outside of town.

Flash Flood in HAMLIN, SOUTH DAKOTA
From 21-APR-07 23:58:00 to 22-APR-07 02:30:00 (CST-6)
Location: THOMAS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rains caused the flash flooding of several township roads near Thomas.

Hail in CLARK, SOUTH DAKOTA
From 21-APR-07 18:55:00 to 21-APR-07 18:55:00 (CST-6)
Location: WILLOW LAKE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, SOUTH DAKOTA
From 21-APR-07 20:06:00 to 21-APR-07 20:06:00 (CST-6)
Location: MILBANK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CODINGTON, SOUTH DAKOTA
From 21-APR-07 20:10:00 to 21-APR-07 20:10:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, SOUTH DAKOTA
From 21-APR-07 20:20:00 to 21-APR-07 20:20:00 (CST-6)
Location: STOCKHOLM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HAMLIN, SOUTH DAKOTA
From 21-APR-07 21:24:00 to 21-APR-07 21:24:00 (CST-6)
Location: CASTLEWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CLARK, SOUTH DAKOTA
From 21-APR-07 18:58:00 to 21-APR-07 18:58:00 (CST-6)
Location: NAPLES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HAMLIN, SOUTH DAKOTA
From 21-APR-07 19:32:00 to 21-APR-07 19:32:00 (CST-6)
Location: HAYTI
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CODINGTON, SOUTH DAKOTA
From 21-APR-07 19:35:00 to 21-APR-07 19:35:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HAMLIN, SOUTH DAKOTA
From 21-APR-07 19:41:00 to 21-APR-07 19:41:00 (CST-6)
Location: HAYTI
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter