Step 2 of 8
Living Snow Fence Case Study: Mountain Lake, MN
  Introduction
  Snowfall
Wind Direction
  Fetch Distance
  Snow Water Equiv.
  Snow Transport
  Porosity
  Attack Angle
  Setback
  Conclusions
  References



Prevailing wind direction and the wind direction of greatest potential snow transport are needed to calculate the attack angle later.

The first table on the right gives the prevailing wind direction for each of the winter months, and the overall prevailing winter wind direction, 320° or NW.
See a degrees vs. cardinal direction table.

The second table on the right gives the potential snow transport (Qupot). The direction of greatest snow transport is 320°, or NW.

The prevailing wind direction in this case is therefore 320°, or NW.


 

Prevailing Wind Direction
Oct Nov Dec Jan Feb Mar Oct - Mar
330 320 320 310 320 330 320

Direction Mountain Lake, MN
10 471
20 45
30 145
40 253
50 109
60 404
70 127
80 145
90 178
100 151
110 244
120 486
130 552
140 920
150 854
160 495
170 763
180 1593
190 2611
200 2009
210 2027
220 1398
230 775
240 371
250 302
260 715
270 721
280 1087
290 5402
300 10415
310 18781
320 26911
330 18895
340 3635
350 1217
360 687
Total = 105892
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