5/30/11 Memorial Day Forecast

To usher in the unofficial start of summer, summer like temperatures and humidity will be with us today.  Highs will be in the upper 80's to lower 90's today.  It will be humid with dewpoints in the middle 60's.  Morning fog and clouds should break bringing in some sunshine during the day today. A light sea breeze will keep it slightly cooler right at the coastline.

A cold front will slide through later today, sparking off a shower or thunderstorm.   The morning line of showers and thunderstorms (MCS) will weaken throughout the morning and move south and east of the Boston/Cape area.

Most storms should be below severe levels, but a random storm could produce hail and gusty winds. It will not be a washout of a day.

Tuesday-  High pressure builds in with cooler and drier temperatures.  Expect highs in the lower to mid 70's.

Wednesday - A warmer, humid airmass moves back in with highs in the low to mid 80's. There is the chance for more scattered thunderstorms.

Weather Word - MCS  is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape.

MCS over NY, CT and MA on Monday 5-30 morning.  Usually form during evening hours and persist overnight, die out during the day time.