In my limited experience, whenever windshear is reported i scribble down all the details incl a/c type and the time it was reported. each subsequent aircraft that makes an approach i inform using
"At (time) a departing/arriving (ac type) reported windshear at (altitude). Airspeed loss/gain (number) knots, strong left/right drift."
plus any info on rotors etc.
i carry on giving this info until it appears the risk no longer exists, i.e i have no reports from pilots for some time, or i have an official met confirmation.
At the end of the day, people saying theyy would or wouldn't seems a bit weird. i'd rather an aircraft have too much info, than not enough and then having an incident.
Bring on the winter season
