Melt/Refreeze Cycle

Posted by Chris Lambert

What a mid-March day!  Lots of sun (except for the Cape) and lots of snow melting going on.  What a difference in temperatures too.  We only managed the upper 30s at the coast, but hit the low to mid 50s north and west of 495.  Fitchburg came in at 55 degrees.  An onshore component to the wind kept us much cooler inside 128. 

Good set-up tonight for temps to fall fast once the sun sets and that means our snowmelt refreezes into black ice on the sidewalks, driveways and side streets.  Temps cool the fastest away from the coast, with upper teens in the colder Worcester County and southern NH valleys to the low to mid 20s in many of the Boston burbs, to about 32 in the city.   With some marine air lingering around, I can't rule out patchy fog from forming overnight.

Tomorrow looks good again, maybe not a cloudless sky, but we'll take at least partly sunny skies again.  Temps are fairly similar with highs near 40 at the coast, and closer to 50 well inland.

Temps warm-up even more Monday and Tuesday, and that means 50s for many!  Monday still features mid to upper 40s at the immediate coast, but warm enough to melt more snow.  Tuesday brings us rain... and it WILL be rain this time.  Depending on how the evolution of a wave of low pressure forms along this front, we could wring out at least an inch of rain.  While that wouldn't cause significant river flooding, we may see swollen streams from snowmelt and rain, and I certainly can see us dealing with big puddles/ponding on the roads for the Tuesday evening commute.

Wednesday is a transition day.  We'll near 50 by mid-day, but that active west wind advects in cold air late in the day and by Thursday morning, you'll feel the difference.   A colder pattern is where we stay into the weekend. 

Like A Waterfall

Posted by Pete Bouchard

If you were caught in those 'cloudbursts' today, you had more than you could handle in the rain department. Torrents fell in a short amount of time - what we deem 'flash flooding' in the weather biz. Since it happens suddenly, the National Weather Service has adopted the acronym TADD:

Bam! Pow!

Posted by Jeremy Reiner

Bam. Pow! Those were some nasty storms last evening with some towns in metrowest & the city itself blasted with locally heavy rain, hail, lightning and strong wind gusts. A cool front is the culprit and that front will linger across the region again today. That means another round of some scattered showers & t-storms likely.

Thunderous Start to Workweek

Posted by Pete Bouchard

Heat and a bit of humidity fed a strong - and sometimes severe - line of thunderstorms today. By the time the dinner hour rolled around (6pm-ish), the storms had consolidated into a line. Everyone got a drink of water and a big drop in temperatures - some falling nearly 20 degrees in minutes!

Rear-view Mirror

Posted by Jeremy Reiner

As we exit our recent soggy pattern we do so with one more weather system capable of producing scattered showers & t-storms. This cool front is a slow mover (aren't we all on Monday mornings?!) up in northern New England right now. This slow moving front will settle into our part of the world very late this afternoon bringing a chance of some scattered t-storms between 4-pm. Until then you have a great day with mostly sunny skies along with temperatures in the low 80s. For some, a bit on the humid side for much of the day.