wxsniss

A subset of SNE totals... generally 4-7" ORH east: KBOS 5.7 / East Boston 6.5 / Charlestown 7.1 / Dorcester 7.0 As many expected, jack was Milton 7.3: ...Suffolk County... Charlestown 7.1 1127 PM 2/19 General Public Dorchester 7.0 1113 PM 2/19 Ham Radio West Roxbury 6.8 1031 PM 2/19 Ham Radio East Boston 6.5 1045 PM 2/19 General Public Roslindale 6.0 1010 PM 2/19 Public Logan AP 5.7 1215 AM 2/20 Airport Chelsea 5.6 1105 PM 2/19 Trained Spotter Allston 5.4 1140 PM 2/19 Broadcast Media ...Plymouth County... Whitman 7.2 1237 AM 2/20 Trained Spotter Rockland 6.0 1100 PM 2/19 Trained Spotter Middleboro 5.1 1158 PM 2/19 Ham Radio ...Norfolk County... Milton 7.3 1121 PM 2/19 Trained Spotter Westwood 7.0 1000 PM 2/19 Public Weymouth 6.6 1144 PM 2/19 Public 2 W Walpole 6.0 1218 AM 2/20 Public Walpole 5.5 1000 PM 2/19 NWS Employee Sharon 5.5 827 PM 2/19 Trained Spotter Randolph 5.3 1030 PM 2/19 Trained Spotter Millis 5.0 1002 PM 2/19 Trained Spotter Foxboro 5.0 1133 PM 2/19 NWS Employee ...Worcester County... Northbridge 6.0 1053 PM 2/19 General Public Fitchburg 5.1 920 PM 2/19 Co-Op Observer Lunenburg 5.1 918 PM 2/19 Trained Spotter Worcester 4.9 1028 PM 2/19 CWO Worcester AP 4.9 1216 AM 2/20 Airport ...Barnstable County... Marstons Mills 4.7 1244 AM 2/20 Ham Radio west harwich 3.8 416 PM 2/19 Ham Radio Barnstable 3.6 855 PM 2/19 NWS Employee ...Essex County... Topsfield 6.0 952 PM 2/19 Public Peabody 5.5 830 PM 2/19 Public Swampscott 5.0 1000 PM 2/19 Public Ipswich 5.0 951 PM 2/19 Trained Spotter ...Middlesex County... Wilmington 6.5 1151 PM 2/19 Public West Newton 6.2 1107 PM 2/19 General Public Framingham 5.5 1027 PM 2/19 General Public CONNECTICUT ...Hartford County... Burlington 4.5 802 PM 2/19 Trained Spotter Collinsville 4.0 853 PM 2/19 General Public South Windsor 4.0 1112 PM 2/19 Trained Spotter North Granby 3.7 756 PM 2/19 Trained Spotter West Hartford 3.5 853 PM 2/19 Broadcast Media RHODE ISLAND ...Kent County... TF Green AP 6.7 1215 AM 2/20 Airport ...Providence County... East Providence 4.5 1000 PM 2/19 Public Providence 3.0 1100 PM 2/19 Public

Hard to see how KBOS is not over 6" given 4.5" at 7pm and best returns of the event 8-10pm... What a fun event. Not a blockbuster, but still had its own charm. Guidance was actually pretty decent... we were guarded after Tuesday's debacle but guidance actually verified pretty well. The other thing that threw people off: Euro was simply not good on this. Not a good winter in general for it. Robust solutions on GFS / UK / RGEM proved correct in handling the reinvigorated low Thurs-Fri. Just looking at 12z Wednesday guidance... best guidance: NAM, RGEM, GFS, UK GFS father > v16, though too robust in northeast MA up into southeast NH/ME

HRRR and RAP nailed it Best steady rates of the event underway now in Boston metro and will probably continue through 10pm Very likely KBOS breaks 6" from 4.5" at 7pm

23z HRRR has flakes in the air at least until midnight for BOS Verbatim another 2-3" for Boston metro, highest south shore with spots 4" Best rates for Boston metro between 7-10pm and radar supports that

Isn't it the opposite...? I could be wrong but I thought it was upper level clouds seeding and enhancing lower level OES cells? I had posted this last night:

21z HRRR continues 2-3", spot 4" additional in Boston area, especially south shore Best stuff 6-10pm Upstream reports in western MA and CT are promising

19z HRRR bumped up from 18z... another 3-4" in Boston area Maybe a little salvation for all those burned on 2/1

Definitely has helped accums and wintry appeal that we’ve hovered 29-30F... a tick cooler than forecast CF has barely budged all day

I was just about to comment about that... Very pulsatile... fluctuates between nothing to moderate in minutes... on radar, makes me wonder if the cellular OES echoes are the main mechanism for the heavier snow

Amazing to see that efficient accumulation on roads in that photo of Morrissey by 93 Just a few miles away, good rates but we're very slow to accumulate on black asphalt. Accumulating great on unplowed and all other surfaces. Widespread 3"+ with pockets to 6" in eastern SNE when all is said and done. Feels like winter, and not a terrible event relative to how much we've been shafted.

18z HRRR and RAP both put down another 2-3" in same areas it's been snowing all morning, most in same areas it's been snowing all morning For the asphalt accumulation concerns, about half that comes after 5pm

Reaching moderate with some of these echoes... A good prognostic for eastern areas getting another 2-4" between ~1pm-10pm when it's more organized.

Maybe this will help soothe any frustrations... Probably the most incredible thing I've seen this winter:

We've had an amazing stretch, not to mention Feb 2015. Should be an easy tradeoff! But the natural tendency for snow lovers (myself included) is to recalibrate expectations higher, not accept regression to the mean lol

OES cells are brief but great growth... let's hope that maintains this afternoon Re: seasonal impression: Oct, Dec 17, and Superbowl storms were awesome and overachievers for Boston region. Otherwise has been a frustrating winter. BOS metro folks (CoastalWx, Henry's Wx, DotRat, Summerthyme, myself and others) had one of the worst letdowns in recent memory in the 2/1 WAA/firehose... hours of heavy and 1-2F colder would've seen 10"+ like just a few miles inland instead of wet asphalt.

Boston metro had a nice band 4-5am, dropped at least another 0.5” or so

0z RGEM cut back but not terrible... burst of better dynamics from like 3pm-9pm Friday for eastern SNE Looks like another 3-6" ORH east

0z RGEM will be telling... along with GFS, UK, was really robust at 18z.

So cool: look closely between Weymouth and Plymouth... you can see the OES echoes moving inland while the storm echoes move eastward. Probably some under the beam stuff impacting coastal locales further north.

MV was probably seeing 2-3"/hr for a bit today. Personally, I would have loved to see photos and video of 54 dBz rates from an iconic SNE locale that rarely sees that.

Agree... best support for those higher amounts from 18z RGEM, 18z HRRR long range, 18z GFS, and 12z UK... not our most reliable guidance. Stakes are not the highest. We're talking a prolonged 3-6" vs. 4-8" for eastern SNE.

For Boston metro... the irony is we are whitening surfaces more efficiently than the 2/1 storm where we had heavy rates for hours and nothing to show for it.

Counting on enough mechanics with the last pulse Friday...