10:26AM<\/p>\n
DAYS 1-5 (MAY 18-22)
\nHigh pressure provides beautiful weather today, but the pressure gradient between its center to the west and low pressure in eastern Canada will create a gusty breeze, and as sunshine heats the ground and evaporates moisture out of it from plenty of recent rainfall, this air rising into colder air aloft may help to develop some cumulus clouds which will float across the sky and blot out the sunshine at times, if they can overcome the dry air aloft. If these clouds do pop, they will be gone by evening but some higher clouds will arrive this evening and increase overnight ahead of an advancing warm front, and this may make your Sunday start on the cloudier side, with even a risk of a passing rain shower as the front lifts through, but the warm air will move in with more sun developing during the day, as it also turns out warmer with an increase in humidity levels as well. The next forecast dilemma is to figure out how much cloudiness and shower and possible thunderstorm activity will take place while we are in the warm sector, which will be around until a cold front arrives late Monday. I think a disturbance crosses the region with a shower and possible thunderstorm sometime Sunday night, but gets out of the way by early Monday, which will be largely rain-free, although the opportunity for a passing shower will be there, and then a more general shower and thunderstorm threat should occur late-day or early-night with the front. How much sun Monday? I think enough that some areas reach or exceed 80, but maybe not well into the range of 80-87 that I had on the previous blog, so I’m going to trim off the top part of that. Either way, Monday will be a preview of summer in comparison to much of our recent weather. Post cold front we get back to some nice spring weather Tuesday and Wednesday of next week as high pressure arrives from Canada, west of the region enough with low pressure offshore so we have a gusty breeze Tuesday, then tranquil but with sea breezes Wednesday.
\nTODAY: Sunshine, with a few passing clouds possible. Highs 58-65 Cape Cod, 65-72 elsewhere. Wind NW 10-20 MPH.
\nTONIGHT: Partly cloudy evening. Mostly cloudy overnight. Lows 45-52. Wind light variable.
\nSUNDAY: Mostly cloudy to partly sunny morning with a slight risk of a passing rain shower northern MA and southern NH. Partly to mostly sunny afternoon. Highs 60-67 Cape Cod, 68-75 elsewhere except 75-80 some interior locations by late-day. Wind S 5-15 MPH.
\nSUNDAY NIGHT: Variably cloudy. Passing showers and a slight risk of thunderstorms. More humid. Lows 56-63. Wind SW 5-15 MPH, higher gusts.
\nMONDAY: Partly sunny through most of afternoon with isolated showers possible. Mostly cloudy late-day with showers\/thunderstorms possible. Humid. Highs 68-75 South Coast except cooler Cape Cod, 76-83 elsewhere. Wind SW 10-20 MPH, higher gusts.
\nMONDAY NIGHT: Mostly cloudy with showers and thunderstorms early, followed by clearing. Lowering humidity. Lows 55-62. Wind W 10-20 MPH, higher gusts possible.
\nTUESDAY: Sun and passing clouds. Highs 62-69. Wind NW 10-20 MPH, higher gusts.
\nTUESDAY NIGHT: Clearing. Lows 48-55. Wind NW 5-15 MPH.
\nWEDNESDAY: Mostly sunny. Highs 60-67, coolest coast. Wind light variable with sea breezes.<\/p>\n
DAYS 6-10 (MAY 23-27)
\nAs discussed previously, I believe the pattern that evolves is one that puts the mean ridge of high pressure in the Great Lakes \/ Midwest area with troughs both to the west and east of it, but the eastern trough being far enough east that this area will often be on the drier side of the pattern overall. However, “ridge riders” or disturbances that come up and over the ridge can still bring episodic unsettled weather and are very hard to time. Right now, the favored timing for such disturbances passing through with shower or rain threats are May 24 and May 27. And “rain threats” does not necessarily translate into “rainy days” either. These systems can be weak, and fast, and produce very little, or they can dig a little more and produce a bit more rainfall. We’ll just have to keep an eye on the pattern for timing.<\/p>\n
DAYS 11-15 (MAY 28-JUNE 1)
\nSame general idea for the pattern but it may de-amplify some allowing a little more trough into New England before May ends, with a round of rain possible. I think the majority of this period will also be rain-free, with temperatures not all that far from seasonal averages.<\/p>\n","protected":false},"excerpt":{"rendered":"
10:26AM DAYS 1-5 (MAY 18-22) High pressure provides beautiful weather today, but the pressure gradient between its center to the west and low pressure in eastern Canada will create a gusty breeze, and as sunshine heats the ground and evaporates moisture out of it from plenty of recent rainfall, this air rising into colder air … Continue reading Saturday Forecast<\/span>