Prolonged snowfall produced heavy accumulations over southeast South Dakota, ranging up to over 20 inches in several areas. The snowfall took place from two days before to the day after Christmas. The snowfall was accompanied by increasing north to northwest winds which caused widespread blizzard conditions on Christmas day and the start of the next day. The blizzard added to the very heavy snowfall made almost all travel impossible, and shut down commerce.

Blizzard in SANBORN, SOUTH DAKOTA
From 23-DEC-09 18:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 18 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in GREGORY, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 16 inches, with a 13 inch report from the town of Gregory. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in CHARLES MIX, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 16 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in LINCOLN, SOUTH DAKOTA
From 23-DEC-09 13:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 22 inches, including an 18 inch report from near Canton. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in YANKTON, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 22 inches, including a 21.5 inch report from 2 miles east of Yankton.  North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in DOUGLAS, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 12 to 18 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in KINGSBURY, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 16 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in BROOKINGS, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 8 to 16 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in LAKE, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 14 to 20 inches, including 18 inches at Madison. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in MINER, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 12 to 20 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in MOODY, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 14 to 20 inches, including 16 inches at Flandreau.
North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in JERAULD, SOUTH DAKOTA
From 23-DEC-09 18:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 18 inches, including a 15 inch report at Wessington Springs. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in BRULE, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 8 to 12 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in HANSON, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 20 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in MCCOOK, SOUTH DAKOTA
From 23-DEC-09 14:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 22 inches, including a 19.5 inch report from northeast of Salem. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in HUTCHINSON, SOUTH DAKOTA
From 23-DEC-09 15:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 14 to 20 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in AURORA, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 10 to 18 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in DAVISON, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 14 to 20 inches, with a 20 inch report at Mitchell. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in MINNEHAHA, SOUTH DAKOTA
From 23-DEC-09 13:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 20 inches, including a 20 inches in the Sioux Falls area. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce. Part of the roof of a large cattle barn near Baltic collapsed, killing several cattle.

Blizzard in UNION, SOUTH DAKOTA
From 23-DEC-09 14:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 16 to 22 inches. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in BON HOMME, SOUTH DAKOTA
From 23-DEC-09 16:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 12 to 18 inches, including a 14.5 inch report at Tyndall. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in CLAY, SOUTH DAKOTA
From 23-DEC-09 14:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 14 to 23 inches, including a 23 inch report at Vermillion. Tyndall. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in TURNER, SOUTH DAKOTA
From 23-DEC-09 14:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 18 to 24 inches, including a 23.5 inch report from Marion. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.

Blizzard in BEADLE, SOUTH DAKOTA
From 23-DEC-09 18:00:00 to 26-DEC-09 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow combined with increasing winds to produce widespread blizzard conditions. The snowfall over 3 days varied from 12 to 20 inches, with a 20 inch report at Huron. North to northwest winds reached sustained speeds over 30 mph and there were gusts over 40 mph. These winds combined with the heavy snowfall to produce widespread visibilities below a quarter mile from Christmas day to the start of the next day. Most roads were blocked and travel was brought to a standstill, as was the limited holiday commerce.