HAL has advised staff thusly:
Originally Posted by HAL
Operational update:
Storm Ciaran will cross the southern half of the UK during this evening and Thursday. A strong wind warning has been issued valid from 2100 to 0500: SSE WINDS WITH MEAN 16-22KT AT TIMES AND GUSTS OF
30-38KT ARE LIKELY TO OCCUR, WITH A LOW RISK OF UP TO 42KT GUSTS.
Part of this - and I didn't know this - is that airbrdges have operational thresholds of 41 to 54 kts, and some if things go full badger then some or all of them may go out of service - effectively no airport. HAL are looking to move at least some airbridges to tuck them into the building structures.