Probably doesn't matter...
TACT/CASA MESSAGE: XCD
----------------------
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REF : SNOW AT EGLL --ZERO RATE FOR ARRIVING TRAFFIC---
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REG ID : EGLLA02E
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VALID : 0850: UNTIL: 1230 UTC
.
REMARKS : FCM MESSAGE NOT REQUIRED
.
CFMU OPERATIONS DIVISION-BRUSSELS
At least AMAN should be able to cope with that