7:44AM
DAYS 1-5 (MAY 11-15)
This 5 day period will feature 3 fair weather days sandwiched by 2 unsettled ones. If you’re reading this not long after I post it you may look outside and say “what do you mean unsettled? …it’s sunny!” .. Well yes, it is starting out sunny on this Monday morning but a fast-moving low pressure system is going to deliver clouds in rather rapid fashion as we go through the morning, and probably a decent round of showers, at least for most of the region, from the end of the morning through the early afternoon from southwest to northeast, briefly putting us into the warm sector between the warm front and approaching cold front, which will trigger additional showers and possible thunderstorms from west to east during the afternoon. While a widespread severe weather outbreak won’t be occurring, conditions are marginal for a few of the storms to attain severe levels, producing potentially damaging wind gusts and some hail as well. Generally, I expect most of the activity to be more benign, but stay alert in case. This activity skedaddles out of here this evening once the cold front passes, and we get yet another shot of chilly air behind it for Tuesday and Wednesday. Both days will features a gusty breeze and diurnal cloudiness, probably more cloudiness/wind/chilly air Tuesday than Wednesday. By Thursday, you’ll notice the air turning much milder as the high pressure area that delivers the chill will have moved off to the east and its return flow will be pulling air from a warmer source region. Along with this may come some increased high and mid level cloudiness as the upper air warms. For now, expecting it to remain dry for the daytime hours of Thursday.
TODAY: Sunny start then clouding over with showers arriving southwest to northeast by late morning through early afternoon. Remaining mostly cloudy with additional showers and a chance of thunderstorms this afternoon. Highs 58-65. Wind S 5-15 MPH, gusts over 20 MPH.
TONIGHT: Cloudy with a chance of rain showers early, then clearing. Lows 38-45. Wind N 5-15 MPH.
TUESDAY: Sun and passing clouds. Highs 53-60. Wind NW 10-20 MPH, higher gusts.
TUESDAY NIGHT: Partly to mostly cloudy. Lows 40-47. Wind W 10-20 MPH.
WEDNESDAY: Sun and passing clouds. Highs 55-62. Wind NW 10-20 MPH.
WEDNESDAY NIGHT: Mostly clear. Lows 43-50. Wind W 5-15 MPH.
THURSDAY: Partly sunny. Highs 63-70 except 55-62 South Coast. Wind SW 5-15 MPH.
THURSDAY NIGHT: Clouding over. Risk of rain. Lows 48-55. Wind S 5-15 MPH.
FRIDAY: Variably cloudy. Risk of showers and thunderstorms. Highs ranging from 55-62 Cape Cod and South Coast to 70-77 interior valley locations. Wind SW 10-20 MPH, higher gusts.
DAYS 6-10 (MAY 16-20)
Bubble of high pressure brings fair but continued mild weather May 16. Watching for a back-door cold front to turn it much cooler during May 17 while moisture from the west as well as from off the ocean combine to bring cloudiness and eventually wet weather. May remain somewhat unsettled May 18 with additional drizzle/showers but temperatures may range from quite cool coast to milder inland. Should transition back to fair and seasonably mild weather May 19-20 as high pressure moves in.
DAYS 11-15 (MAY 21-25)
General pattern in this time frame continues to look zonal (west to east) and more relaxed toward seasonably milder with a couple minor rainfall threats.