[TowerTalk] Wx Instrument Siting Standard

[Don W7WLL]

There was some discussion here recently on this subject. Think all agreed that what one reads at X feet may be totally different than at Y feet, but for wx instrument siting the following is what the NWS uses as their standard. While aimed at airports where most (but not all) Federal wx observations are taken, the NWS realizes that volunteer wx observers reporting to the NWS may be unable to meet some or all siting standards.
http://www.ofcm.gov/publications/fmh/siting/FCM-s4-1994update.pdf
Don W7WLL