Weather

Wet Evening Ahead, Thunder Possible

Temperatures remained above freezing overnight and this allowed the snowpack to continue to soften. With rain on the way this afternoon and throughout parts of the overnight, more snow is going to disappear.

The chart below estimates how much water will come from the snowmelt by tomorrow mid-morning.

snowmelt coming 226.png

Two Fronts
We have two frontal systems bringing us wet weather the next 24 hours.
Later this afternoon, a warm front will move up from the south, ushering in 50 degree or higher temperatures, along with a period of rain. You shouldn’t expect to see the highest readings of the day, until sometime late this afternoon or even during the commute home.

After this front passes, there will be lull in the rainfall before a cold front moves into the area. This brings more showers and even some heavy downpours with possible thunder.
The heaviest part of the rain, associated with the cold front, should hold off until after the evening commute, however, showers and wet roads have the potential to slow the ride home.

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Behind the second area of rain, colder air will filter into the region. I wouldn’t be surprised if some of the highest elevations of Worcester County see wet snow mixing in before the rain ends late at night.

As a cold front pushed off the coast, colder Canadian air returns. Temperatures will be mild late today, but return to chilly levels for Friday night and especially Saturday.

Early in the weekend, an offshore storm could even bring a few rounds of snow showers along the coast. Highs won’t reach 40F on Saturday, but will turn milder and more seasonable late in the weekend and early next week.

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Snow melt continues to be slow, and after today will be minimal through the weekend. Next week, as temperatures warm further, we should continue to erode more of the snowpack.

You can follow my forecasts on Twitter @growingwisdom

Water Locked Up
While there is still a lot of snow left on the ground, you might be surprised to read we have seen less overall precipitation than average.

The map below shows how much water is currently locked up in the snow. This precipitation is already accounted for in the total for the year.

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Notice, on the daily climate summary, Boston (and likely most areas) has received about 10-15% less water equivalent (melted snow and rain) than is typical. This isn’t very significant, as it could be made up in one rainstorm, but it’s interesting.

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From NOAA Boston

It’s hard to believe that the snowiest winter on record has been on the drier side. The reason is most of the snow fell during very cold temperatures, so there wasn’t a lot of water in it.

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