High pressure will give the Philadelphia and New York City metropolitan areas a nice break through this evening, but more stormy weather conditions are on the way for tomorrow.
High pressure over the mid Mississippi Valley will build into the region through this evening providing scattered cloud cover, light winds, and temperatures below normal for this time of year. Temperatures will rebound from morning lows in the 30’s into the upper 40’s to lower 50’s for highs this afternoon.
Meanwhile, an area of low pressure over the western Gulf Coast will move towards the southern Mid Atlantic by tonight. This low pressure system will rapidly intensify off the New Jersey coast tomorrow producing a variety of weather conditions through the day and evening tomorrow. For all locations throughout the northern Mid Atlantic, strong winds can be expected from the northeast around 15 to 30 mph with wind gusts over 45 mph. For most locations below 500 feet in elevation including both the Philadelphia and New York City metropolitan areas, heavy rain can be expected with rainfall amounts of one to three inches. The rain may mix with snow at times, but no accumulation is expected. Very poor visibility can be expected with the worst conditions between 11 AM and 7 PM tomorrow. For the interior, the elevation will be extremely important in this forecast. For locations between 500 and 1,000 feet, rain will mix with and at times change over to snowfall with accumulations of one to three inches expected, mostly on grassy surfaces. For locations over 1,000 feet, snowfall amounts of three to six inches with locally higher amounts can be expected. This is a heavy wet snowfall that will lead to the threat for trees and power lines to be downed due to the combined weight of the snow and the leaves left on the trees. For more details, visit the Snow Map!
The storm will exit by tomorrow night with clearing skies by Sunday morning. High pressure will be in control from Sunday on through the middle of next week with tranquil weather conditions. However, temperatures will average well below normal with lows in the lower 30’s to lower 40’s and highs in the mid 40’s to upper 50’s.