Originally Posted by
YOWgary
I'm curious what percentage of SQ's flights encounter weather conditions that often lead to IRROPS - for example, what percentage of SQ flights in a calendar year require de-icing
I want to be clear that this is a question, not a statement, otherwise we're going to get sidetracked into a page and a half of people yelling about the one time they went to Changi.
For example, I've never been to Singapore in August, maybe the weather's insane then.
"Singapore has one of the highest occurrences of lightning activity in the world. Situated close to the Equator, the warm and humid tropical conditions are highly favourable for the development of thunderstorms. Thunderstorms produce lightning, and in severe cases, are accompanied by heavy rain and gusty winds. ...
On average, Singapore experiences 168 thunderstorm days per year. This refers to the number of days in which thunder is heard over Singapore, and gives an indication of lightning activity (as thunderstorms are associated with lightning). The monthly distribution of mean thunderstorm days as recorded at the climate station at Changi is shown below. More thunderstorm days are observed during the Inter-Monsoon months of April and May and October and November. The months of January and February in the later phase of the Northeast monsoon experience the least number of thunderstorm days."
Tropical - with its own set of weather challenges, thinderstorm-dodging and all. Flying over monsoon India can't be easy for the flight block planners.