Snowmageddon (snow + Armageddon)

Entry in progress—B.P.
A similar term to “snowmageddon” is “snowpocalypse” (snow + apocalypse). “Gobblegeddon” (gobble + Armageddon) is when a “snowmageddon” occurs during the week of Thanksgiving.
 
Twitter
Jim Renaud
‏@renaud
Snowmageddon Outside
1:29 PM - 14 Feb 07
 
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Greg Swan
‏@gregswan
Rain stopped for now but ominous snow is on its way. Many schools north of here closed already! April 3 Snowmageddon? Run for cover!
9:10 AM - 3 Apr 07
 
Urban Dictionary
snowmageddon
A monumental winter storm, lasting multiple days and resulting in copious amounts of snow and disastrous winter driving conditions.
“did you hear about the snowmageddon arriving on friday? It’s going to be amazing!”
by Bed4rd December 18, 2008
 
OCLC WorldCat record
The Week on the Hill: Snowmageddon upends the congressional schedule; President Obama proposes a health care summit; and colleagues mourn Rep. John Murtha of Pennsylvania
Author: J Smallen; J Dick
Edition/Format: Article Article : English
Publication: NATIONAL JOURNAL -WASHINGTON DC- 42, no. 7, (February 13, 2010): 39
 
OCLC WorldCat record
Snowmageddon : hell has frozen over
Author: John Prince; Rudy Thauberger; Sheldon Wilson; Michael Hogan, (Actor); Laura Harris; All authors
Publisher: Beverly Hills, CA : Anchor Bay Entertainment, 2012.
Edition/Format:   Bluray Video : Videodisc : Blu-ray disc   Visual material : English
Database: WorldCat
Summary:
The Miller family discovers a mysterious gift outside their home on Christmas Eve. The gift contains a snow globe with a perfect reflection of their own town inside. When they shake it snow even begins to fall, whatever happens inside the snow globe happens to their town for real. Then buttons on the snow globe unleash terrible disasters on the town and the family must band together and find a way to destroy it, before it’s too late