ITALY - Emilia-Romagne region expect heavy snow of over 40 cm and windy conditions creating near blizzard conditions beginning tonight through Wednesday night.    JAPAN - Heavy Snow Warnings have been issued for parts of Saga, Kumamoto, Yamanashi. Storm Warnings have been issued for Nagasaki and Kagoshima.    UNITED STATES - Winter Storm Watch is in effect for southeastern Montana, extreme northeastern Wyoming, and western Dakotas tonight through Thursday morning.   PHOENIX - A Pacific storm moving across Arizona today.