wxsniss

So far best event of winter season imo Great to see meso guidance and soundings actually realized Yeah about that Logan metar... that was 250 feet visibility at peak in Fenway

Great capture!!! Was outside have an 11 min vdieo, can barely type my hands so cold 3 min at peak of some of the heaviest snow I've seen

First band through Fenway nbd, heavy for 2 min... 2nd band incoming looks much better

Like a switch suddenly very heavy

Yeah just light snow in Fenway... bulk of heavy incoming within next 20 min

Heavy snow Fenway

Some 35-40 dbz echoes entering Framingham... this is looking fantastic for Boston metro

Light flakes in Fenway...

Yeah the rotation / merging of different lines looks to extends duration for Pike region right into inside 128 / into Boston metro

Yeah if this maintains through 6:15 will get camera and position ready... this may be the event of the winter (or the tide-turning starter...?)

A lot of meso dynamics in play... there's some rotation and possibly colliding lines sort of like colliding sea breeze fronts enhancing lift in the summer Boston metro looks right in the firing line

Agree, has a bowing and accelerating behavior maintained well into open water

Yep. And even more so over open waters. Wouldn't be surprised to see a special marine warning. The sounding I posted above was off Boston harbor.

19z HRRR verbatim 5 hour timepoint so believable, I don't see any weakening in omega, moisture...

Finally an event interesting enough in this Godforsaken winter to lure me to post and may have to get a video camera ready... 3k NAM / 19z HRRR maintain the line and reach us around 7pm Check out this sounding under the squall (at this timepoint located in harbor):

Simple thing but I’ve rarely used radar here, can NNEs advise me if I’m wrong: to get radar returns in mountain areas (e.g. KCXX returns for nearby Stowe), do you have to use higher Tilts 3-4? It looks to me like Tilts 1-2 are shadowed on one side by mountains?

Brookline plummeted down to 22F Good call guys Public will measure credibility based on what’s on the sidewalk, so hoping my 4-8 for Boston verified... hope they post a map with all reports rather than a single number from Logan And Powderfreak... about to venture on Mountain Road

Logan 1.6 is such a clear outlier on the PNS, frustrating Any ground reports on accums in Boston area before changeover?

First time here and absolutely loving it. Teaching my wife how to ski on Spruce Mt and we are staying in town. Charming town center, nice people, great hosts and restaurants, and deep deep winter. Quintessential New England winter and what's not to love. Skiing tomorrow should be awesome... 03z HRRR has heavier rates arriving by 5am and then continuing until early afternoon. I'm not familiar with microclimate here, but 12-20" seems a lock. Quick OT question: any recs for places to watch the Patriots game? I'm looking for someplace with multiple screens and maybe a little playoff atmosphere.

Lucky to be in Stowe for the weekend... Had nice dry powder and a winter wonderland most of the day, maybe 1-2"... orographic on easterly fetch? Amazing how winter riches are so unequal... we'd be off the walls celebrating this with the last 2 months we've had in Boston, and the synoptic meat of this storm has not even arrived... Keep the obs coming... to coworkers my final call was 4-8" for the Boston metro and think it will verify

Actually pretty decently pegged transition... transition to what is variable... sleet / frozen mix in Lancaster, plain rain in Philadelphia burbs at 8pm...

8-10 your area is very realistic. And further north of the border, 10-16 is spot on. Boston metro always had less buffer. I think 4-8 will accurately cover current guidance as well as a probable Messenger shift east. My initial call for Boston was 6-12 but those higher #s are looking less likely. Wish I could join the GTG, would be fun to analyze and learn in person

We pound for several hours and it will finally look like winter in Boston metro... but those higher totals > 8" are looking less likely. I had called 6-12 for Boston metro but barring a Messenger shuffle east (and this is a good synoptic setup for that), 4-8 looks more accurate from guidance tonight.

See my post above re: steadily retreating confluence in successive guidance runs... thru 24 hrs, Euro is doing the same. I think this should yield a more NW track unfortunately.

This vaguely reminds me of an event last year (March 20 2018? that could be totally wrong) in which GFS insisted on warmer/minimal impact in the 48 hours leading up, contrary to Euro/RGEM, and GFS ended up being correct. And Harvey also back-pedaled bigtime. The synoptics may be totally different, but I have a Memento-tattoo that GFS can rarely pull a coop. My 6-12 call for Boston area from Wednesday may burn badly. I'm still skeptical a surface low plows into CT/MA. But GFS/RGEM show it, and others are trending that way. Why could this be occurring? If you start at hour 0 of tonights 0z GFS, and then scroll back for the equivalent Sat 0z timepoint in previous runs, it looks like the confluence / SSS over Quebec is not pressing down as much in more recent runs... in other words, the prior runs may have over-estimated the confluence? We'll see, but obviously a terrible 0z suite so far tonight...