Weekly Outlook January 16-22, 2017

We’ve got good news and bad news in this week’s outlook. The good news is that the majority if the next 7 days will feature some pretty nice mid-winter conditions. The bad news is that late Tuesday and Wednesday might be rather nasty in parts of the region.

The week starts off with high pressure keeping us dry on Monday. By Tuesday, low pressure will start to head towards the Great Lakes. This is the same system that produced a severe ice storm across the Plains this past weekend. As this storm moves into the Great Lakes, a secondary storm will form off the Mid-Atlantic coastline. This will complicate the forecast considerably, as it will keep cold air in place at the surface, while warmer air tries to move in aloft. The result will be quite a mess, especially across the interior. From Boston southward, this is mainly a rain storm, with some snow or sleet right at the start late Tuesday. North and west of Boston, it’s a different story. We’ll likely start as some snow, but a changeover to sleet and freezing rain seems likely at some point Tuesday night or Wednesday morning. This leads us to a couple of questions. First, when does that change take place, because that will determine how much snow and how much freezing rain we’re getting. Secondly, do temperatures ever get above freezing to allow everything to change over to plain rain? We’ll likely devote another blog post to this later Monday or Tuesday as the threat becomes a little clearer. Depending on how quickly the storm pulls away, precipitation may linger into early Thursday,  but high pressure starts to build in later that day, and remains in control right through the weekend.

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The roads might be in rough shape Tuesday evening north and west of Boston with a wintry mix possible. Image provided by Pivotal Weather.

Monday: Plenty of sunshine, but some high clouds will start to move in late in the day. High 34-41.

Monday night: Becoming partly to mostly cloudy. Low 23-30.

Tuesday: Cloudy, showers developing in the afternoon south of Boston, a mix of snow, sleet, and freezing rain north and west. High 34-41.

Tuesday night: Wintry mix continues outside of 495, precipitation changes to all rain inside of 495. Low 28-35 in the evening, then temperatures slowly rise overnight.

Wednesday: Precipitation eventually changes to all rain in most areas, though it could remain a mix of snow, sleet, and freezing rain across central New Hampshire. Everything tapers off and ends in the evening, possibly changing back to wet snow in many areas before doing so. High 33-40 from the Merrimack Valley northward, 40-47 south of the Merrimack Valley.

Thursday: Breezy with rain or snow showers possibly lingering in eastern areas during the morning, some sunny breaks may start to develop in the afternoon. High 37-44.

Friday: A mix of sun and clouds. High 37-44.

Saturday: Partly to mostly sunny. High 37-44.

Sunday: Plenty of sunshine. High 39-46.

Foxborough Forecast: Skies should be mostly clear Sunday evening with light winds, and temperatures starting in the lower 30s, dropping into the upper 20s around the time the Lamar Hunt trophy gets handed to Mr. Kraft for the 8th time. Patriots 27 Steelers 24

APTOPIX AFC Championship Football
Hopefully we’ll see a similar picture taken Sunday evening. Image provided by Patriots.com

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