While the severity and path of the storm grabbing attention is still questionable, the impact would span Monday and Tuesday in central Pennsylvania.
How nasty the weather gets, if nasty at, all depends on the track and strength from Sandy, a hybrid storm, a nor'easter or a simple frontal passage.
In the worst-case scenario, an intense storm, turns inland from the Atlantic Ocean over New Jersey and Pennsylvania early next week.
Such a scenario would deliver high winds, heavy rain and perhaps high-elevation snow. Impacts would range from travel disruptions and foiled activities to downed trees, power outages and flash and urban flooding.
If the storm fails to turn westward over the region, a period or two of rain would occur Saturday night into Monday. Snow showers could occur over the mountains by early next week with noticeably blustery, progressively colder conditions for all.
Severe weather will move into parts of the south-central United States Wednesday afternoon and evening, bringing the possibility of isolated tornadoes to the region.
Stormy weather will continue in the Dallas area through Thursday morning, but conditions will improve on Friday.
A dangerous multiple-day severe weather outbreak will begin this weekend over the South Central states and will include the potential for nighttime tornadoes in parts of Texas and Kansas.
A large storm will form over the eastern half of the nation next week and will bring a swath of unsettled conditions for days.
A slow-moving low pressure system will make residents of the Northwest reach for their raincoats and umbrellas each day through the remainder of the week.
Surviving a flight in the wheel well of a commercial aircraft is possible, but highly unlikely due to subzero temperatures and thinner air than what is found at the peak of Mount Everest.
Rochester, NY (1885)
A high of 90 degrees.
Washington, DC (1960)
91 degrees to 47 degrees in six hours.
St. Paul, MN (1963)
5.5" of snow.