February 13th, 2012 – Waterbury Winter Weather Event Updates



Monday, February 13th, 2012



Event totals: 0.8” Snow/0.02” L.E.


We picked up a couple tenths of an inch of snow with the arctic cold front that moved into the area Friday and Saturday, but for the rest of the weekend all we saw was diamond dust and often clear skies.  With the warm front approaching this morning though, the snow was really coming down; I would actually describe the intensity as moderate, and with some flakes over 1 cm in diameter it was accumulating efficiently.  There will definitely be more accumulation to report later today, because the vigorous snowfall continued as I was leaving the house, and the radar still shows some moisture upstream of the area:



Even here in Burlington it’s been snowing.  It’s coming down at a decent clip, but the flakes aren’t as large and overall it’s not up to the level of intensity of what was going on in the mountains.  There’s less than ˝“ of new snow down on the ground here, but having things whitened in Burlington is a notable change.


Some details from the 6:00 A.M. Waterbury observations are below:


New Snow: 0.8 inches

New Liquid: 0.02 inches

Snow/Water Ratio: 40.0

Snow Density: 2.5% H2O

Temperature: 16.9 F

Sky: Moderate Snow (3-12 mm flakes)

Snow at the stake: 9.0 inches



Event totals: 1.1” Snow/0.04” L.E.


When I checked the snow on the snowboard this evening, it had that obvious look of fluff that had undergone substantial settling, and the liquid from the core suggests that’s what happened.  This evening’s stack contained roughly the same amount of liquid as this morning’s, but with ~1/3 the snow depth.  So assuming the flakes had stayed at the size they were this morning, the accumulation might have been a bit more if measured at maximum depth, but 0.3” of additional snow will go into the books for today’s round of accumulation.


Some details from the 6:00 P.M. Waterbury observations are below:


New Snow: 0.3 inches

New Liquid: 0.02 inches

Snow/Water Ratio: 15.0

Snow Density: 6.7% H2O

Temperature: 26.1 F

Sky: Partly Cloudy

Snow at the stake: 9.0 inches



Wednesday, February 15th, 2012



View Postpowderfreak, on 15 February 2012 - 10:27 AM, said:

Yeah this month is going to come in atrocious on the snowfall stats.


This quote was from the Feb 17 Storm thread, but the data are probably best put here in the NNE thread.  Since it’s mid month, and we have now reached the date where the effects of the 2007 Valentine’s Day Storm are incorporated into the cumulative seasonal snowfall data, it seemed like a good time for a snowfall update.  That Valentine’s Day Storm was a notable snowfall event, and it marks the breaking point for pushing this season into the category of least snowy out of the past six through mid February (red bar on the graph below).  Also of note is that while this season is not all that far behind ‘06-‘07 and ‘09-‘10 in snowfall, it has now fallen outside of the one standard deviation region (error associated with the green bar on the graph below).  At -1.052 S.D. below the mean, this puts snowfall for 2011-2012 in the bottom 14.6% of seasons based on my six years worth of data.  Also based on my data, the current 74.6” of snowfall received at this location is 67.0% of average.





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