WEATHER BLOG: Gray Days Ahead
Kind of a complicated pattern set up to hit all the details of over the forecast period. But basic synoptic set up has high pressure from Labrador nosing southward with another little center of that high near Cape Cod this morning. The old front (now basically stationary) that moved southward and brought us the nice weather yesterday is stretched out from northern NC band to KY and IL, then back northwestward. This front will not be an a big hurry to move northward over the weekend and Monday as the high pressure continues to feed southward off the coast with a southeast flow for us. However, with that flow coming around to the southeast today though tomorrow around the high and the front lifting slowly northward, we are in for cloudier weather and eventually some wet weather in the form of a few showers and drizzle breaking out. These clouds and southeast flow will help keep temperatures in check today and tomorrow and we may end up being a few degrees too high. However, the high will eventually sink farther south and a cold front will be coming eastward across Canada which will help to turn the gradient to a warmer southwest with less of a chance for rain, but enough instability to support the chances for a shower and thunderstorm. Monday looks
like the transition day from the southeast to south-southwest flow, and temperatures could be warmer or high depending upon when that change takes place. We split the difference between continuity and mos guidance. We will notice the humidity more Monday, then we will be in the warm and more humid air Tuesday with somewhat of a summer like feel. Tuesday will probably be our day with the least chance of a shower or thunderstorm.