01:17 Making Snowflakes Any Time of the Year The Weather Channel meteorologist Kelly Cass looks at how you can make a snowflake any season of the year.

At a Glance Winter Storm Diego dumped heavy snow and damaging ice across the Southeast Dec. 8-9.

Diego snarled traveled and knocked out power to over 400,000 customers.

The top snow total was 34 inches at Mount Mitchell in western North Carolina.

Winter Storm Diego crippled parts of the southeastern United States as it produced a swath of heavy snow and damaging ice across the region Dec. 8-9, stranding motorists on highways and knocking out power to more than 400,000 at the height of the storm.

Diego's top snow total was 34 inches at Mount Mitchell in western North Carolina. Whitetop in far southwestern Virginia had the second-most snow with 24 inches.

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com/util/image/w/diego-history.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com/util/image/w/diego-history.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com/util/image/w/diego-history.jpg?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > The contours show the snow history for Diego in the East.

Officially, 11.5 inches of snow was measured in Richmond, Virginia, Dec. 9. That's the city's second-highest calendar-day snowfall for the month of December .

Roanoke, Virginia, reported a snow total of 15 inches Dec. 9 – the city's heaviest calendar-day snowfall for the month of December – with 2 inches of that falling in an hour. Cars were seen off the road on Interstate 81 near Roanoke that afternoon.

Asheville Regional Airport in North Carolina picked up 11.1 inches of snow Dec. 8-9, its third-highest December snowfall on record.

Farther east, Raleigh-Durham International Airport received 7 inches of snow from Diego, its highest December snowfall total in at least 60 years.

Charlotte, North Carolina, received 2.7 inches of snow/sleet Dec. 9, vaulting the month to the snowiest December there since 1997 .

Lubbock, Texas, officially received 10 inches of snow Dec. 8, ranking as one of the snowiest calendar days on record there.

Snow and ice also spread toward parts of northern Arkansas, southern Missouri and northwestern Tennessee on Dec. 8 and into that night.

The ice knocked out power and downed trees in Craighead County, Arkansas.

Before arriving in the South, heavy rain and high-elevation snow caused problems in Southern California Dec. 6.

Mudslides and flash flooding forced evacuations and necessitated several rescues while higher elevations in the southern Sierra Nevada picked up 6 inches of snowfall.

(MORE: Heavy Snow Closes California Freeway | SoCal Rain Kills One )

Diego also spread snow through the higher terrain of the southern Rockies Dec. 6-7.

Diego's Snow and Ice Totals

All totals below are for snow unless otherwise indicated.

Arkansas: 2.5 inches in Dennard; 1 inch of ice in Harrisburg

California: 6 inches at Alpine Meadows Ski Resort

Colorado: 6.5 inches near Skyway

Delaware: 1 inch in Seaford

Georgia: 8 inches in Sky Valley; 0.25 inches of ice near Lake Tamarack and Elberton

Kentucky: 8 inches near Cranks and Majestic; 0.28 inches of ice in Scottsville

Maryland: 6.3 inches near Ridge

Missouri: 2 inches in Kennett; 0.20 inches of ice in Cardwell

Nevada: 12 inches at Mount Charleston

New Mexico: 5 inches near Kenna and Red River

North Carolina: 34 inches at Mount Mitchell; 11.1 inches at Asheville Regional Airport; 7 inches in Raleigh; 2.7 inches in Charlotte

Oklahoma: 3 inches in Elgin

South Carolina: 13 inches near Glassy Mountain; 0.25 inches of ice in Rock Hill

Tennessee: 12 inches near Kingsport and Mountain City; 0.30 inches of ice in Coxville and Paris; 0.25 inches of ice in Westmoreland with reports of snapped tree branches

Texas: 10 inches in Lubbock; 3 inches in Wichita Falls

Virginia: 24 inches in Whitetop; 14.3 inches in Roanoke; 11.5 inches in Richmond

West Virginia: 20 inches near Ellison and Sweet Springs