7:00 AM | ****Major storm system impacts region with accumulating snow, ice and rain****
Paul Dorian
6-Day Philadelphia Forecast
Today
Snow develops between 8 and 10 am, becomes heavy at times during the mid-day hours, transitions to sleet and freezing rain later in the afternoon, cold, highs in the lower 30’s
Tonight
Snow, sleet and freezing rain transition to plain rain as temperatures slowly rise, lows early in the night near 30 degrees
Thursday
A chance of rain early then becoming partly sunny, milder, lower 50’s for afternoon highs
Thursday Night
Mainly cloudy, cold, near 30 degrees for overnight lows
Friday
Partly sunny, cold, mid 40’s
Saturday
Mainly cloudy, chilly, chance of rain, low-to-mid 40’s
Sunday
Mainly cloudy, milder, chance of showers, low-to-mid 50’s
Monday
Mainly sunny, chilly, upper 40’s
Discussion
A major winter storm will impact the Mid-Atlantic region today and tonight with accumulating snow on its front end before a changeover to ice and rain. An initial (primary) low pressure system will head towards the western Great Lakes today and a secondary low pressure will form near the Mid-Atlantic coastline. Another key player is strong, cold high pressure currently situated over New England and it will anchor cold, dense low-level air that will be reluctant to give up its ground. Snow is likely to break out by mid-morning in the Philly metro region and can become heavy at times at mid-day with accumulations expected on the order of 3-6 inches by later in the day (higher amounts in that range to the west, lower amounts to the east). By later this afternoon, milder air will advance into the region as winds turn more to the southeast and this should result in a changeover from snow to sleet and freezing rain and then ultimately to plain rain by later tonight. The low pressure system moves away on Thursday and allows for high pressure to build in from the west and temperatures could actually climb to 50 degrees during the afternoon hours.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com