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North American Breeding Bird Survey  
Training: Appendix A
Weather Codes
Beaufort Wind Codes Wind Speed in mph/Kph
0 Smoke rises vertically < 1 / < 2
1 Wind direction shown by smoke drift 1-3 / 2-5
2 Wind felt on face; leaves rustle 4-7 / 6-12
3 Leaves, small twigs in constant motion; light flag extended 8-12 / 13-19
4 Raises dust and loose paper; small branches are moved 13-18 / 20-29
5 Small trees in leaf sway; crested wavelets on inland waters 19-24 / 30-38

 

Sky Codes
0 Clear or a few Clouds
1 Partly cloudy (scattered) or variable sky
2 Cloudy (broken) or overcast
4 Fog or smoke
5 Drizzle or light rain
7 Snow
8 Showers
Training Main Menu

U.S. Department of the Interior | U.S. Geological Survey
Patuxent Wildlife Research Center Laurel, MD, USA 20708-4038
http://www.pwrc.usgs.gov/bbs
Operations Contact: Keith Pardieck, email: Keith_Pardieck@usgs.gov
Analyses Contact: John Sauer, email: John_Sauer@usgs.gov
Last Modified: 10/31/01
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