As we approach the holiday weekend signs are pointing to a rough few days with numerous showers and much colder temps. A coldfront is approaching from the west and along it there are soaking thunderstorms. The greatest threat with these storms is the potential for temporary street flooding and rapid rises of small creeks and streams. The most prone are of the State to this flash flooding will be Central and Western MA. As this front moves into the picture an area of low pressure will develop to our south and move north through the course of the night with another shield of rain.
Friday will remain unsettled as the front stalls over the region and scattered showers and downpours will pop-up throughout the day. Temps will start out muggy and mild in the upper 60s but end up cooler in the lower 60s by the end of the day.
The front will stall just offshore and a strong piece of upper level energy will dive toward the East Coast. This will spawn a new low that will intensify quickly in our coastal waters. The low will spin up additional rain and create a raw NE wind putting Saturday in the washout category. Temps will barely clear 50 degrees.
The low will be stacked and there won’t be much to move it along…therefore much of Sunday is in jeopardy as well. Showers will linger for at least the first half of the day. Winds will start to back to the NW in the afternoon and that will bring in slightly drier air so hopefully the windshift will shut the showers off so we can salvage the second half of the afternoon.
Memorial Day will easily be the pick of the weekend…sunshine will return, although cumulus clouds will pop-up across the sky…but most if not all rain showers will retreat to the Northern New England mountains. Temps will reach the middle 60s on Monday.