If you had looked at the radar Sunday night, you would have seen a line of rain extending from the Great Lakes to the Ohio River Valley. This line of embedded showers and thunderstorms is associated with a cold front that is moving into New England, bringing a big burst of rain Monday morning.
This fast-acting system arrives during the morning commute in central and western Massachusetts and moves into the Greater Boston area between approximately 9 a.m. and 11 a.m. For those of you traveling, just be aware that occasional heavy downpours are possible and could cause brief street flooding. We could see up to an inch of rain fairly quickly in a few areas.
Don’t be surprised if you hear the rumble of thunder with this storm. This is not a widespread serious event, but it will catch your attention once it passes.
The wind will be quite strong, with gusts of up to 35 km/h in the morning. The southerly flow will push temperatures into the upper 50s or even mid 60s. These will be the high temperatures of the day, occurring in the late morning before cooler air arrives in the afternoon. Gusty winds could cause a few scattered power outages, although most of us won’t lose power.
There is a coastal flooding warning for areas of southern Rhode Island and coastal southern Massachusetts until 11 a.m. This is simply an advisory, meaning there may be some minor splashing around the time of high tide, but little or no impact beyond that.
This is a rapidly evolving system, so we could see some improvement before the end of the day.
Tuesday looks set to be beautiful with temperatures hovering around the 60s, above average for this time of year. Then another system approaches for Wednesday. We will see more showers that day. It’s still quite mild with highs in the mid-60s, then the second half of the week features temperatures in the 50s — more conducive to the second half of October and certainly with that fall feeling in the air.
During the first half of the week, overnight lows will be in the upper 40s, and the second half of the week will see overnight lows in the upper 30s, but no freezing or freezing conditions are expected.
Greater Boston: Expect windy with scattered rain and thunderstorms during the first half of the day Monday. Temperatures will be in the 60s, with a drop in the afternoon. The sun returns Tuesday with a high of 60 to 65.
Central/Western mass: Expect showers during the morning commute Monday, followed by partial clearing late in the day. The weather will be windy and temperatures will drop into the 50s. Tuesday is mild with sunshine.
Southeast Mass: The weather will be windy and showers will develop on Monday. Temperatures will be between 50 and 60 degrees. Some of these showers could be heavy. Expect the sun to return on Tuesday.
Cape and Islands: Showers arrive mid to late morning accompanied by breezy winds Monday. Expect clearer conditions for Tuesday, with highs in the lower 60s.
Rhode Island: The weather becomes breezy to breezy, particularly along the coast, on Monday, with showers developing and some heavier showers. Temperatures will be between 50 and 60 degrees, then dropping late in the day. Tuesday is sunny and milder.
New Hampshire: Look for showers and a few integrated heavy showers as well as windy conditions for Monday. Temperatures will be in the upper to mid 60s. Tuesday will be sunny with highs in the mid 60s.
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