While the severity and path of the storm grabbing attention is still questionable, the impacts would affect the Harrisburg area Sunday night into Tuesday.
The storm, be it Sandy, a hybrid, a nor'easter or a period of rain and wind would advance quickly up the coast and may then stall. Hence, the unusually long period of nasty weather potential.
There is a risk of damaging wind, torrential rain, flash and urban flooding, power outages, downed trees and travel disruptions only if the storm were to swing inland over New Jersey, Delaware or farther south in the mid-Atlantic.
A storm moving swiftly northward just off the coast would only bring a brief period of rain and gusty wind to southeastern and south-central Pennsylvania with the worst conditions near and east of I-95. Chilly, blustery conditions would quickly follow.
A storm passing by out at sea would still bring spotty showers, followed by clearing and blustery conditions.
More details will become available with this storm over the next few days. However, if you have extensive preparations to do as a precaution, waiting until early next week would be too late.
Even though your home or business may not be on the coast, a more severe storm tracking near or inland of the coast could result in long-duration power outages well after the storm departs. A stalled storm nearby would elevate the flooding and damaging wind potential.
A system with rain and thunderstorms will bring both good and bad news to the western United States later this week.
With the return of wet weather in the Northeast, many people are asking: When will the rain go away?
A change in the weather pattern will bring an extended period of dry and sunny conditions over much of the south-central United States.
After England and Wales endured a cool end to April and an unsettled bank holiday, the warmest air so far this year is set to arrive late this week.
Some communities along the southern Atlantic Seaboard will be hit hard with thunderstorms into the middle of the week.
Anglers around the Great Lakes had an early start to steelhead fishing season this spring following a warmer-than-normal winter, and recent warming conditions have brought the season into full swing.
Charleston, SC (1761)
Large tornado swept Charleston harbor when British fleet of 40 sails was at anchor. Raised waves 12' high, many vessels on beam-ends, 4 killed.
May snowstorm from New York City southwest to to Pennsylvania and south into Virginia; ground covered, severe frost in North Carolina, fruit killed.
Eastern U.S. (1812)
May snowstorm swept from Philadelphia northeastward to Maine. Snow covered ground in New York City; 12" accumulated near Keene, New Hampshire, 9" fell at Waltham, Mass., near Boston.