PPRuNe Forums - View Single Post - Aerodrome Forecast/observation Wind Direstion
Old 25th Apr 2006, 11:31
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turbantime
 
Join Date: Feb 2004
Location: Aus
Age: 42
Posts: 383
Received 5 Likes on 4 Posts
Arm out,

Metro boy is right. As a general rule of thumb, what you get on paper is in degrees true except the ATIS. Ie ARFOR/TAF/TTF/METAR/SPECI/RSWT/Grid point forecasts. What is heard is in degrees magnetic, ie ATIS/AWIS/AWIB.

At the very least you would think the METAR would be in degrees magnetic as in most cases it is derived from the same automatic station that delivers the AWIS/AWIB which is magnetic.
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