How to pronounce 四級 in Cantonese (2 out of 3):

天文台報北風四級
Meteorological News reports that the north wind is a Category 4 storm.

Cantonese Sentence Breakdown

天文 tin1 man4
astronomy
toi4
variant of 臺
台tái [台]
platform
unit
terrace
tower
stage
support
base
station
channel
abbreviation for Taiwan
classifier for machinery
bou3
to announce
to inform
report
newspaper
recompense
revenge M: 份fèn [份]
张zhāng [张]
reward
北風 bak1 fung1
north wind
四級 sei3 kap1
fourth level