We missed a snowstorm on Monday as high pressure in southern Quebec helped to suppress the storm to our south. While many locations throughout the mid-Atlantic had a snowy Monday we remained dry and unseasonably cold as temperatures struggled into the upper 20s to a few low 30s. It was another day in which temperatures ran some 15 degrees or so below the seasonal average for mid-March.
Spring begins on Thursday, allegedly, and during the afternoon it will actually feel like it with the mildest air of the week overspreading the area in the afternoon. Before we reach Thursday expect the mercury to remain below normal with an ever so slow moderating period. Temperatures in the teens will greet you this morning. Although the cold will ease a bit on Tuesday and Wednesday the mercury does remain 10 or 12 degrees below average on Tuesday, then close to seasonal on Wednesday. High pressure in southern Quebec will remain the focal point into Wednesday at which time it will shift further into the Maritimes of Canada. The area should remain dry through Wednesday with high pressure in control.
A flow off the cold Atlantic waters will likely make it quite chilly and raw right along the coast on Tuesday. Elsewhere a pleasant day is expected despite the below average temperatures because of light winds and plenty of sunshine. It also speaks to how use we have become to the constant below normal cold this Winter!
Low pressure is going to push across the Great Lakes during Wednesday and move to our north Thursday, dragging a cold front across the area early Thursday. This will bring increasing clouds Wednesday and then a chance of rain showers at night, perhaps a wintry mix across far interior sections. Any wintry mix would be along and west of Route 495. This scenario may continue early Thursday followed by partial clearing and a mild day as the cooler air tracks north of us. Temperatures locally may drive well into the 50s during the afternoon in the metro area, slightly cooler across the Merrimack Valley. We get into a brisk southwest flow for the day before winds shift more west and then we begin to cool down at night and return to a more seasonable and dry Friday.
There is another chance of a disturbance moving through the area early next weekend with scattered showers. Nothing significant is indicated at this time.
Three Day Outlook:
Tuesday: Plenty of sunshine, unseasonably cold but fairly pleasant in the afternoon. High temperatures in the low to mid 30s. Light east to northeast winds 5 to 10 mph.
Tuesday night: Not as cold with mainly clear skies. Lows in the upper teens and low 20s. Light east to northeast winds.
Wednesday: Sunny to start with increasing afternoon clouds. A bit milder with highs in the upper 30s to low 40s. Onshore breeze of 5 to 15 mph.
Wednesday night: Cloudy with rain showers, possibly a wintry mix far interior. Not so cold. Lows in the low to mid 30s. Light southeast winds.
Thursday and Thursday night: Showers, perhaps a wintry mix far interior early, followed by partial clearing and turning milder in the afternoon. Chance of an afternoon shower. Highs near 50 across the Merrimack Valley to mid 50s in the Boston area. Overnight lows cooling to the mid 20s far inland to low 30s along the coast.