A powerful upper level storm system moved slowly across the Central Rockies and then through the Northern and Central Plains, bringing abundant precipitation and heavy snow to much of Western and South Central South Dakota. The storm began to affect the region on the 28th as rain and snow developed across far Western South Dakota late in the afternoon. Precipitation changed over to all snow during the evening hours and then continued through the overnight. Precipitation tapered off in the morning. Then as low pressure began to move south and east of the region, precipitation moved back northward across all of Western and South Central South Dakota on the afternoon of the 29th and continued into the morning hours of March 1st. Rain changed over to snow across Central South Dakota during the evening hours of the 29th. As low pressure moved away from the area, strong northwest winds developed late on the 29th and continued through the afternoon of March 1st. The winds caused significant blowing and drifting of the snow and created near blizzard conditions at times. Travel became nearly impossible across the area and Interstate 90 across Western South Dakota was closed to travel on the morning of March 1st. Snowfall totals of 6 to 12 inches were common across the Western South Dakota Plains. 10 to 20 inches fell across the Northern and Eastern Foothills, as well as much of the Black Hills. Snow drifts up to 6 feet high developed across parts of the Plains due to the strong winds.

Winter Storm in PERKINS, SOUTH DAKOTA
From 28-FEB-04 23:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in TODD, SOUTH DAKOTA
From 29-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in SOUTHERN BLACK HILLS, SOUTH DAKOTA
From 28-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in OGLALA LAKOTA, SOUTH DAKOTA
From 29-FEB-04 00:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in HERMOSA FOOTHILLS, SOUTH DAKOTA
From 28-FEB-04 21:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in BENNETT, SOUTH DAKOTA
From 29-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in MELLETTE, SOUTH DAKOTA
From 29-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in TRIPP, SOUTH DAKOTA
From 29-FEB-04 20:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in HARDING, SOUTH DAKOTA
From 28-FEB-04 19:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in CUSTER CO PLAINS, SOUTH DAKOTA
From 28-FEB-04 21:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in NORTHERN FOOT HILLS, SOUTH DAKOTA
From 28-FEB-04 19:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in CENTRAL BLACK HILLS, SOUTH DAKOTA
From 28-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in SOUTHERN FOOT HILLS, SOUTH DAKOTA
From 28-FEB-04 20:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in FALL RIVER, SOUTH DAKOTA
From 28-FEB-04 20:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in ZIEBACH, SOUTH DAKOTA
From 29-FEB-04 16:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in NORTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 29-FEB-04 01:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in PENNINGTON CO PLAINS, SOUTH DAKOTA
From 28-FEB-04 21:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in RAPID CITY, SOUTH DAKOTA
From 28-FEB-04 21:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in HAAKON, SOUTH DAKOTA
From 29-FEB-04 16:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in JACKSON, SOUTH DAKOTA
From 29-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in STURGIS / PIEDMONT FOOTHILLS, SOUTH DAKOTA
From 28-FEB-04 20:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in SOUTHERN MEADE CO PLAINS, SOUTH DAKOTA
From 28-FEB-04 21:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in NORTHERN BLACK HILLS, SOUTH DAKOTA
From 28-FEB-04 18:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Winter Storm in BUTTE, SOUTH DAKOTA
From 28-FEB-04 20:00:00 to 29-FEB-04 23:59:00 (MST)
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER