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Sky Harbor (Duluth)

1/20/1998-3/31/2001, 3x hour

Scroll down for wind roses, modal direction data, and snow transport data.

Wind Roses, Frequency Distribution (%)


 

Modal Direction
See a degrees vs. cardinal direction table.

Oct Nov Dec Jan Feb Mar Oct - Mar
50 220 220 220 220 60 220

Potential Snow Transport (Qupot) over Snow Accumulation Season [kg/m] by Wind Speed Class [kts]
Qupot Equation

Direction 11 - 16 17 - 22 23 - 27 28 - 33 >34 Total
N 933 591       1523
NNE 641 1017       1658
NE 1403 3215 391 539   5548
ENE 1111 2756 547 898   5312
E 552 656       1208
ESE 308 197       505
SE 649 197       846
SSE 584 394       978
S 479 427       905
SSW 941 525       1466
SW 1825 4724       6550
WSW 990 820       1810
W 1914 1870 391 539   4714
WNW 1923 2100 156 180   4358
NW 2133 2133 78     4344
NNW 1655 1345       3000
Total 44724