Massive Storm Could Impact PA On Halloween Week

A major storm is moving toward the Delaware Valley and could bring significant impacts to the region during Halloween week, potentially interrupting holiday plans, according to forecasters.

Forecasters are tracking a tropical storm in the Caribbean that will begin heading north early next week, and an expected dip in the jet stream along the Atlantic seaboard that it could collide with.

The exact track of the tropical storm will determine whether or not the mid-Atlantic region receives a smattering of rain over the course of a few days, or a more major weather event, forecasters said.

"The jet stream dip can generate a new storm, or perhaps a potent nor'easter, along the Atlantic coast toward the end of October," Accuweather said. "But even a less-intense coastal storm, when combined with (the tropical storm) offshore, will stir up additional winds and rough seas."

The timing for the storm, should it hit, will likely bring impacts to the Philly area beginning on Tuesday, and then continue through the end of the week, forecasters said.

Rainfall totals remain unclear.

Colder weather is also expected throughout the week, with high temperatures sitting at around 50 and lows dropping to 40, the National Weather Service said. It in the Poconos, it could bring the first real snow of the season, and in general weather will be more typical of December than late October.

The full forecast for the coming week is below, according to the National Weather Service:

Increasing clouds, with a high near 59. West wind around 10 mph, with gusts as high as 20 mph.

Tonight
Clear, with a low around 40. West wind 5 to 10 mph.

Saturday
Increasing clouds, with a high near 59. Northwest wind 5 to 10 mph.

Saturday Night
Mostly cloudy, with a low around 42. Northwest wind around 5 mph becoming calm.

Sunday
Partly sunny, with a high near 58. Calm wind becoming north around 5 mph in the morning.

Sunday Night
Partly cloudy, with a low around 41.

Monday
Mostly sunny, with a high near 56.

Monday Night
Partly cloudy, with a low around 42.

Tuesday
Partly sunny, with a high near 54.

Tuesday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 30 percent.

Wednesday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 30 percent.

Wednesday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40 percent.

Thursday
A chance of showers. Partly sunny, with a high near 59. Chance of precipitation is 40 percent.