Global warming is worse than it seems. When the IPCC predicted the demise of winter, they underestimated the amount of heavy snow which global warming would bring to Mississippi and Alabama.
Weather Street:Clouds and Precipitation Forecast Movie
2001 15.2.4.1.2.4. Ice Storms
Milder winter temperatures will decrease heavy snowstorms
http://observatory.ph/resources/IPCC/TAR/wg2/569.htm#1524123
IPCC Draft 1995
shrinking snow cover in winter