A strong late spring storm brought significant snowfall across much of western South Dakota. Rain changed to snow during the day on the 9th, with snow continuing into the next day, moderate to heavy at times. Northwest winds produced areas of blowing and drifting snow, with gusts around 45 mph over the west central South Dakota plains producing blizzard conditions on the 10th. Snowfall ranged from five to ten inches over northwestern South Dakota and eight to 16 inches fell over southwestern South Dakota. The northern Black Hills received 12 to 24 inches.

Winter Storm in PERKINS, SOUTH DAKOTA
From 09-MAY-15 22:00:00 to 10-MAY-15 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Blizzard in NORTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 09-MAY-15 20:00:00 to 10-MAY-15 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Blizzard in BUTTE, SOUTH DAKOTA
From 09-MAY-15 19:00:00 to 10-MAY-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in ZIEBACH, SOUTH DAKOTA
From 09-MAY-15 22:00:00 to 10-MAY-15 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in NORTHERN BLACK HILLS, SOUTH DAKOTA
From 09-MAY-15 11:00:00 to 10-MAY-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in NORTHERN FOOT HILLS, SOUTH DAKOTA
From 09-MAY-15 18:00:00 to 10-MAY-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CUSTER CO PLAINS, SOUTH DAKOTA
From 09-MAY-15 16:00:00 to 10-MAY-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Blizzard in PENNINGTON CO PLAINS, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in HAAKON, SOUTH DAKOTA
From 09-MAY-15 19:00:00 to 10-MAY-15 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in FALL RIVER, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in RAPID CITY, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Winter Storm in SOUTHERN FOOT HILLS, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CENTRAL BLACK HILLS, SOUTH DAKOTA
From 09-MAY-15 10:00:00 to 10-MAY-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in SOUTHERN BLACK HILLS, SOUTH DAKOTA
From 09-MAY-15 11:00:00 to 10-MAY-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in OGLALA LAKOTA, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in JACKSON, SOUTH DAKOTA
From 09-MAY-15 18:00:00 to 10-MAY-15 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in BENNETT, SOUTH DAKOTA
From 09-MAY-15 17:00:00 to 10-MAY-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in MELLETTE, SOUTH DAKOTA
From 09-MAY-15 21:00:00 to 10-MAY-15 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in STURGIS / PIEDMONT FOOTHILLS, SOUTH DAKOTA
From 09-MAY-15 15:00:00 to 10-MAY-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Blizzard in SOUTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 09-MAY-15 16:00:00 to 10-MAY-15 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in HERMOSA FOOTHILLS, SOUTH DAKOTA
From 09-MAY-15 16:00:00 to 10-MAY-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter