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February 8th-9th Potential Bomb Part III


earthlight

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Cheer up.  You are in the green from the high end of the scale...that's 35-40 inches!

 

That map isn't right though.  Suffolk County goes from 20" to 0" to 20" in just a few miles.  There isn't going to be a snow hole like that.

Those snow depth maps are awful and are always unreliable. That outcome is literally impossible-my town literally goes from 1" to 20" one end to the other.

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Hey all,

 

With a significant to potentially historic snow event on the way, I thought this would be a good time to review proper snow measuring techniques so that we have the most accurate records for this storm (and because significant drifting may occur, making accurate measurements difficult). 

 

http://www.crh.noaa.gov/iwx/program_areas/snow_spotters/SnowMeasurement.pdf

 

 

Before the First Snow
Place your snowboard outside. A snowboard can be any lightly colored board that is about 2 feet by 2 feet. A piece of plywood painted white works very well. Choose a location that is away from trees, buildings, and shadows. Try to avoid areas that are known to be prone to drifting. Mark the location of the snowboard with a stake so you can find it after a fresh snowfall.
 
Measuring Snowfall
Snowfall is measured to the nearest tenth of an inch. Measure the greatest amount of snowfall that has accumulated on your snowboard since the last observation. You can measure on a wooden deck or ground if a snowboard is not available. Snowfall should not be measured more than 4 times in 24 hours. You can measure the hourly snowfall rate, but do not clean off your board each hour. Only clean off the board when you take one of the four daily measurements. Once the snow ends, add up the measurements from each time the snowboard was cleaned to reach a storm total.
 
Special cases:
- Snow falls and accumulates on the snowboard, but then melts. In this case, the snowfall is the greatest depth of snow observed on the board before it begins to melt. If this occurs several times, measure the snowfall after each snow shower and add each measurement for the total snowfall.
- Snow falls and melts continuously on the board. In this case, if the snow never reaches a depth of a tenth of an inch, then a trace of snowfall is recorded.
- Snow has blown or drifted onto the snowboard. In this case, take several measurements from around the yard where the snow has not drifted, being careful only to measure new snow. Take an average of the various measurements to arrive at a total.
- Sleet counts towards total snowfall, freezing rain accumulation does not.
 

 

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I wonder if they will keep the 4-10" forecast for parts of central nj. 

 

 

they should because its one NAM run...look at the RGEM, the NAM almost always is overdone, central jersey has never been the hotspot, I would think maybe a revise to 6-12 inches is appropriate if the GFS and Euro hold serve but really why should they go more right now. There are still concerns about how much is lost to rain as well

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