Posted December 3, 2018 10:06 p.m. EST
Temperatures will plummet across much of the East Coast on Tuesday as cold air over the northern Plains begins moving east. Along with the cold weather, mainly dry conditions will prevail across the East. There will be a few snow showers across the Ohio Valley throughout the day.
Temperatures will also fall in the Southeast, after the recent stretch of unseasonably mild weather. It will continue to be mainly dry across the region. Still, some showers and thunderstorms are expected to develop along the Florida Peninsula as a cold front moves south across the state.
Two high-pressure systems will keep the rest of the country dry. One system will linger over the central Plains, with the other in western Wyoming. These systems will also keep cool air in place from the northern Rockies to the central states.
An incoming storm system from the Pacific Ocean will end the recent dry spell in California. Increasingly rainy conditions are expected across Northern and Central California, with snow in the mountains. The rain will be steadiest and heaviest along the coast, and it should not reach much of Southern California until night.
FOCUS: Southeast Turns Stormy This Weekend
The same storm system projected to affect the southern Plains on Friday will move into the Southeast over the weekend. This may result in significant snowfall or ice from parts of the Tennessee Valley to the interior Carolinas and Virginia.