10/26/11 Early snow, Freeze & Weekend Storm??

A weak weather system is pushing through the north east this morning, bringing light showers and possibly a mix in the highest elevations of MA and NH.  This will be with us for most of the day, with a steadier rain to fall later this afternoon.

The scattered showers over southern PA will reach us by this afternoon. Pink areas show possible mixed precipitation.

This is ahead of a much cooler air mass that will plunge south and bring our warm autumn temperatures to an end.

The weather systems that will have an impact on our weather. 1) The disturbance that will push through today and bring light rain.  2) The disturbance that will push through Thursday and Thursday night to bring a chance of rain and snow. 3) The weekend disturbance that could be a major coastal storm. and RINA should have minimal impact on our weather.

Thursday - A fast moving storm now over the plains will exit the coast and develop into a moderate storm. At the same time it will pull down colder air from Canada and drop temperatures below freezing in many areas that will promote some snow flakes to fall late Thursday into early Friday morning.

Snow map for late Thursday night into early Friday morning. The lightest areas with a red surrounding could expect to see a light accumulation of snowfall.  All other areas in the BLUE color will likely see some snowflakes and maybe a dusting on some cooler surfaces but not accumulation expected, PURPLEs, perhaps just a passing flake. Coastal areas south of Boston and the Cape will be too warm for any snow to form.

Friday we are inbetween storms, however cold air will be overhead and with a clear night and cold air many areas that have not seen a frost or a killing freeze will likely see temperatures fall below freezing over much of New England, except right at the coast.

Weekend - The potential remains for a strong nor'easter to form. The current track is a bit south of New England, but some models do bring it closer and with cold air in place still, snow could fall once again, however heavy rain could be a possibility from the south coast to the Cape with strong gusty winds. More to come on this system tomorrow.