Greg

That 21" in Andover looks little high/suspect. Here in Wilmington there was about 13"-14" (according to my best measurements) Wakefield had about 18" and the other spotter down Wilmington Road near Pinehurst had 15.2".

'78 was actually a little inside of the Benchmark which is why a much more region wide (Heart of our viewing area) was affected back then vs a relatively smaller swath with this particular storm. Quite a difference in results back then then. HFD, ORH and BOS areas Ect. (Blizzard of February 6-7, 1978, Closest Pass)

17.1"

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Boston's highest depth of the 2015 Winter was 37.0" and also in 1978 in the northern half of Rhode Island was also deemed a 200-year storm at the time.

That 40" was unofficial. Nobody knows how that was measured, even the local Mets found it suspect with the surrounding areas.

We'll sort of but not entirely for the state itself in general.

Just curious, what was wrong with their measurements of the past? Too high, too low?

True, but the discussion is not really about liquid ratios per se, it was mostly about measuring snowfall. The amount of liquid in let's say 10" of snow can vary more than one believes. The storm 3 weeks ago was very fluffy, like the great lakes, but was measured mostly uniformly across the board.

That's the general sense but what I wrote above is mostly because of inaccurate or lots of snowfall data metrics that are all over the place. In other words, too many cooks in the kitchen using different methods than using a single one. Coops with the settled snowfall is more trustworthy data. As long as the CoCoRaHS match or come in within reason to the Coop data, it is accepted. If it looks way off it is not recorded or data cleaned. Sometimes as people can see some bad/off data gets though on the PNS reports.

Actually, it is not a true rule. Many COOPS that I see and I'm one of them, do it the "Old School" method. We use a board but don't clear it off every 6 hours. We wait till the storm ends or every 24 hours. If a storms longer in duration than that, then we clear the board. In a storm like this, we take multiple measurements in the a "snow survey" area and get an average and report. A snow gauge can be used for far less windy storms, but I find them a little on the inaccurate side. They are better used for collecting rainfall. The National Weather Service in Norton, MA does show rules on this. In fact, I find some of the rules a little on the ridged side. This can be found on their site.

I'm being sincere here. Not doubting you just look at the depth change on the far-right column and one can clearly quite a discrepancy. If one measures fluffy snow every 6 hours thee will be inflated totals. This is why I believe it's more a snow depth than a snowfall

Similar to the amounts just north of the city (Immediate suburbs)

That top 1 33.2" doesn't look correct. Looks either more like a depth or total that was measured incorrectly. Sum 1007 330 - - 1339 0 3.89 33.7 - Average 32.5 10.6 21.6 -2.6 - - - - 4.0 Normal 34.5 13.8 24.2 - 1266 0 3.00 M - 2015-01-01 30 7 18.5 -7.1 46 0 0.00 0.0 0 2015-01-02 34 16 25.0 -0.4 40 0 0.00 0.0 0 2015-01-03 40 16 28.0 2.8 37 0 0.00 0.0 0 2015-01-04 34 17 25.5 0.4 39 0 1.24 2.4 2 2015-01-05 46 32 39.0 14.1 26 0 0.03 0.0 2 2015-01-06 34 8 21.0 -3.8 44 0 T T 2 2015-01-07 19 3 11.0 -13.6 54 0 0.01 0.3 2 2015-01-08 26 -8 9.0 -15.5 56 0 T T 2 2015-01-09 23 -1 11.0 -13.4 54 0 0.08 0.8 3 2015-01-10 29 4 16.5 -7.8 48 0 0.02 0.4 2 2015-01-11 25 2 13.5 -10.7 51 0 0.00 0.0 2 2015-01-12 33 7 20.0 -4.1 45 0 0.03 0.2 2 2015-01-13 38 11 24.5 0.5 40 0 0.03 0.0 2 2015-01-14 22 1 11.5 -12.4 53 0 0.00 0.0 2 2015-01-15 26 8 17.0 -6.9 48 0 T T 2 2015-01-16 30 13 21.5 -2.3 43 0 0.01 0.1 2 2015-01-17 39 3 21.0 -2.7 44 0 T T 2 2015-01-18 28 5 16.5 -7.2 48 0 0.00 0.0 2 2015-01-19 44 27 35.5 11.8 29 0 0.86 0.0 1 2015-01-20 43 25 34.0 10.4 31 0 0.00 0.0 T 2015-01-21 38 13 25.5 1.9 39 0 0.00 0.0 T 2015-01-22 33 16 24.5 0.9 40 0 0.00 0.0 T 2015-01-23 38 15 26.5 2.9 38 0 0.00 0.0 T 2015-01-24 38 22 30.0 6.4 35 0 T T T 2015-01-25 37 26 31.5 7.8 33 0 0.55 6.5 7 2015-01-26 38 6 22.0 -1.7 43 0 0.00 0.0 6 2015-01-27 24 8 16.0 -7.7 49 0 0.37 6.8 12 2015-01-28 20 13 16.5 -7.3 48 0 0.57 15.2 19 2015-01-29 26 -10 8.0 -15.9 57 0 0.00 0.0 16 2015-01-30 39 16 27.5 3.6 37 0 0.04 0.3 16 2015-01-31 33 9 21.0 -3.0 44 0 0.05 0.7 16

Well, actually to an extent people in the northern part of Rhode Island can still say that about '78 being still the big one. The central and southern part is more local in this storm, but they do have some bagging rights now with this particular storm.