Weather

Heaviest Rain and Wind Now Through Evening Commute

2PM Update
Our nor’easter continues to move north and is located just east of New York City this afternoon. The map below shows the position of the storm. The black lines are isobars and the closer together they are, the more wind there will be with a storm. As the tighter gradient moves into southern New England, winds will continue to increase.

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The radar prediction for the rest of the afternoon and evening shows how rapidly the rain will end between 7PM and 10PM south to north. Winds will be strongest before the rain ends and then tend to diminish overnight. I’ll update here and on Twitter into the evening.

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Winds
Winds will continue to be strong along the coast and it appears to me will peak in the Boston area between now and 5PM. This map below is for 4PM. The red area just off the coast is where the winds are strongest.

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EARLIER BLOG ENTRY

A wet and windy Tuesday is in store with some icy conditions continuing into the afternoon, especially north and west of Worcester. The evening commute will be worse than the morning, but both commutes are certainly affected by the storm.

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Our nor?easter continues to move northward along the coast this morning bringing a bit of wintry weather, but this is mostly a rain event. The heaviest part of the storm will occur into the evening hours with showers and cloud lingering for a couple of days.
This is a strong nor?easter, but not a blockbuster storm. Think of it as a typical New England storm with strong winds, heavy rain and mountain snow. There will be some minor coastal flooding, some scattered power issues and also urban street flooding, but nothing major.

I’ll be updating the forecast as it changes here on on Twitter @growingwisdom.

Frozen Precipitation
The cold air from yesterday is lingering this morning, enough to cause some icy conditions on untreated surfaces. The map below shows when temperatures will rise above freezing and the advisories for winter conditions will expire.

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Heavy Rain
Rainfall will average 2 to 3 inches, but some places will likely fall under and perhaps even over those amounts. The further west of Route 495 you travel the less rain will fall. This amount of rain is enough to cause small stream flooding, street flooding and basement issues, but not enough for moderate or certainly major flooding. The heavy rain just won?t last long enough for that type of situation.

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Wind
Winds will begin to pick up this morning and continue to become stronger this afternoon. The winds will peak during the evening commute and make travel more difficult along with the rain. Winds could gust to 50 miles per hour along the coast and these speeds can take down large enough branches and perhaps even some trees to cause power outages. I don?t expect widespread power issues, but I would have your phone charged and dinner prepared if you lived along the coast. Remember, it gets dark very early so a loss of power is a long time in the dark.

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Coastal Flooding
There is a coastal flood advisory posted for coastal flooding. The flooding will occur at high tide early this afternoon, but will be minor in nature. If you live on the shore you know what minor flooding means so please avoid those roads and areas which typically see flooding in these situations.

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Lingering Storm
The low pressure area bringing us this storm is going to linger around, but in a much weakened state, for a few days. This means clouds and the chance of showers continues into Thursday with the highest change tomorrow. I don?t expect you will see much sunshine until Saturday although some sunny breaks are likely on Friday. Temperatures will be seasonably chilly, but not extreme and I don?t see any snow events in the future.

Sunset

Today is December 9th and our earliest sunset of the year. In Boston the sun officially goes down at 4:11 PM, but it?s going to look dark by 3:30 with the thick clouds and rain. Starting tomorrow we gain a tiny amount of daylight time in the afternoon, but lose more in the morning so the overall daylight continues to decrease until the 21st.

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