3:16AM<\/p>\n
This weekend it’s all about the line between a warm air mass just south of New England, whose northern edge will poke into southern New England with potential record high temperatures, and a very cold air mass in northern New England and southeastern Canada, whose edge will try to push southward and undercut the mild air. For us in southeastern New England, it only makes for a tough temperature forecast, as the bulk of the precipitation that does occur will fall as rain (not ice) and the heaviest and steadiest of which will stay north of the region. How I think it will play out, with the cold air sinking into southern NH and northeastern MA Saturday night and Sunday, will be reflected in the wording in the forecast below. The biggest plague of the weekend may be areas of dense fog that form, especially over areas that have a significant snow cover (mainly Boston area northward). As we get to the start of the new week, a cold front will push all of this offshore, but the transition on Monday may be rather slow, so it will be a day of occasional wet weather and lowering temperatures. By Tuesday (Christmas Eve), a fresh cold air mass will have moved in, and a weak disturbance moving into the region may touch off a few snow showers. Wednesday (Christmas Day) will also be cold, and we’ll have to watch the timing of a weak clipper system, for the potential for a touch of light snow. A slight moderation in temperature should occur later next week, but only back to normal, along with a few more disturbances bringing clouds and a few risks of snow showers.<\/p>\n
Updated forecast for southeastern New England…<\/p>\n
TODAY: Mostly cloudy. Highs 45-50. Wind SW up to 10 MPH.<\/p>\n
TONIGHT: Mostly cloudy. Spotty light rain mainly northern MA and southern NH. Areas of fog. Lows 40-45 but may fall into the 30s southern NH and northeastern MA. Wind SW up to 10 MPH may shift to N in southern NH and northeastern MA.<\/p>\n
SUNDAY: Southern NH and northern MA – overcast with areas of fog and drizzle, and a chance of a few periods of light rain, temperatures in the 40s, and light N to NE wind. Southern MA and RI – mostly cloudy, a few rain showers possible, highs in the 50s, and WSW wind up to 10 MPH.<\/p>\n
MONDAY: Cloudy. Chance of light rain. Areas of fog. Temperatures fall through 40s.<\/p>\n
TUESDAY – CHRISTMAS EVE: Partly cloudy. Isolated snow showers. Lows around 20. Highs around 30.<\/p>\n
WEDNESDAY – CHRISTMAS DAY: Variably cloudy. Chance of light snow. Lows in the 10s. Highs around 30.<\/p>\n
THURSDAY & FRIDAY: Variably cloudy. Episodes of snow showers. Lows in the 20s. Highs in the 30s.<\/p>\n","protected":false},"excerpt":{"rendered":"
3:16AM This weekend it’s all about the line between a warm air mass just south of New England, whose northern edge will poke into southern New England with potential record high temperatures, and a very cold air mass in northern New England and southeastern Canada, whose edge will try to push southward and undercut the … Continue reading Fine Line<\/span>