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Old 13th Jun 2009, 08:55
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MrApproach
 
Join Date: Aug 2001
Location: Australia
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I seem to recall that some airports have the ATIS information supplied by the met office and recorded every 30 mins. The only change then would be if SPECI conditions occurred before the nxt 30 min (METAR) observation. If the tower controllers are certified met observers and record their own observations then pilots can expect ATIS changes when conditions change.

The ATIS letter should be given by pilots on first contact with Approach or Ground and updated thereafter by controllers when the ATIS changes or conditions are changing prior to an ATIS change.

A wind check with take off clearance then becomes simply more R/T in a busy R/T environment at a critical time for safety. Doing it as a routine action breeds complacency (because people cease to listen) so it is far better done when a change has occurred or the pilot needs a specific check. One I've heard of is 1st Officer doing the take-off, but close to Captain only crosswind limit; the Captain needs to make a last minute decision.

If the met office supplies your information then there should always be a wind check before take off and landing as a change may have occurred that has not yet been recorded by Met and sent to the Tower for ATIS recording.
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