DAYS 1-5 (APRIL 16-20)
Well the question of whether or not the Red Sox game on Patriots Day would be postponed for only the 5th time was answered yesterday, and that answer was yes, making 2018 join 1959, 1961, 1965, and 1984 as the only years the Marathon Monday baseball game was put off. The marathon on the other hand, well it would take a foot of snow or extremely severe weather to cause a postponement of that event, and since neither of those are very likely in mid April, despite our tendency to have some miserable weather at this time of year, it’s a good time to hold a rain or shine outdoor event. This year, it will be all about the rain and not at all about the shine, at least in terms of the sun. Hopefully all the participants will shine in their own way, from the elite competitors to those just joining in to see how far they can go and not worry about how long it takes them to get there. So while these participants battle themselves and in some cases other competitors, they will be battling the elements as well, in terms of cold, damp, wind, and wet weather. But keep in mind, many of them have trained long hours in equally harsh or even more harsh conditions in the weeks and months leading to this event, and they are not about to let a very unpleasant April day get in the way of their ultimate goal. When it comes down to it, today’s nasty weather will be more of a challenge for spectators than it will be for participants. I wish them all the best. So, the elements. We’ve talked about the weather system bringing this to the region, and now it’s time to watch it play out. The cold air hangs on, but temperatures in most locations by the early morning will be above freezing, erasing the late season icing and sleet that was deposited in the hours prior. It will take a little longer to accomplish this in portions of north central MA and southwestern NH where it stayed colder longer, and up to an inch of so of sleet accumulated, along with additional ice accretion. But with the warm air still hanging to the south of the region and riding up over the cold air at the ground we will continue to see plenty of drizzle and periods of rain. As we reach midday and afternoon, the warm air will continue to try getting in while at the same time, low pressure is approaching and pushing a cold front toward the region from the west southwest, lifting that warm air and resulting in a few bands of heavier showers, even possible thunderstorms, that will have to sweep through the region through evening. The timing of these should allow the elite runners to have finished their race, but for those still out on the course they will need to battle through this added element, along with the already chilly and damp conditions, which will include a moderate head wind to cross wind from the east to southeast. In short, this will be one of the harder races to run in, weather-wise, aside from some of the hotter days that have occurred in years gone by. Once all of this is through, we will have to deal with an upper level low pressure area crossing the region from west to east Tuesday, bringing the risk of additional rain showers, especially during the afternoon. At night, it may be cold enough for any additional showers to be in the form of mixed precipitation or snow which could briefly coat things. It’s along shot, but cannot rule it out. Once we get to Wednesday, it’s a quick nice day with high pressure in control before the next low pressure area brings unsettled weather in the form of rain Thursday and leftover rain showers Friday, although the air may be cold enough for some mix with snow in higher elevations well northwest of Boston late Thursday and for a few snow showers to be involved on Friday. Forecast details…
TODAY: Overcast with drizzle and periods of rain. Waves of heavier rain showers moving through from southwest to northeast during the afternoon including the chance of thunderstorms. Highs 42-47 southern NH and northern MA, 48-55 elsewhere, occurring late in the day. Wind E to SE 10-20 MPH with higher gusts.
TONIGHT: Variably cloudy. Areas of fog. Risk of a rain shower early. Temperatures generally steady 42-47. Wind S 5-15 MPH shifting to SW.
TUESDAY: Variably cloudy. Scattered rain showers. Highs 48-55. Wind SW 10-20 MPH.
TUESDAY NIGHT: Mostly cloudy. Scattered rain and/or snow showers. Lows 32-39. Wind W 10-20 MPH.
WEDNESDAY: Partly cloudy. Highs 48-55. Wind WNW 10-20 MPH.
THURSDAY: Cloudy with periods of rain, may mix with snow far northwest of Boston at night. Lows from the upper 30s to lower 40s. Highs from the upper 40s to middle 50s.
FRIDAY: Mostly cloudy. Scattered rain/mix showers. Lows from the upper 30s to lower 40s. Highs from the middle 40s to lower 50s.
DAYS 6-10 (APRIL 21-25)
High pressure builds in and should give the region fair weather for the April 21-22 weekend. Low pressure to the southwest and south should move up into the region with a chance of rain by April 24 with fair weather returning at the end of the period. Temperatures near to below normal.
DAYS 11-15 (APRIL 26-30)
Some changeable weather at the end of the month as the pattern tries to amplify further, slowing weather systems down. One or 2 sneaky warm days are possible in here but this would not be the start of long-term warming quite yet as Canada remains fairly chilly for some time to come.