21. 21 -
The weather turned cloudy on September 18 as Willie formed near Hainan. From September 19 until September 22, heavy and thundery showers associated with the outer rainbands of Willie affected the territory.
It remained generally cloudy with some showers on September 23. Strong easterly winds affected offshore areas on September 24. Some isolated heavy showers occurred over the Hong Kong Island early on September 27. The weather turned fine and sunny the next day as winds turned more northerly under the influence of a northeast monsoon.
Fine weather prevailed until the end of the month apart from some brief showers on the last day.
Eight tropical cyclones occurred in the western North Pacific and the South China Sea in the month.
Details of the issuance/hoisting and cancellation/lowering of various warnings/signals in the month are summarised in Table 1.1. Monthly meteorological figures and departures from normal of September are tabulated in Table 1.2.
Table 1.1 Wamings and Signals in September 1996
Warnings/Signals
Tropical Cyclone Warning Signals
Effective date and time
Name of T C
Signal No
Sally
1
8 Sep 0500 -
8 Sep 1700
3
8 Sep 1700 -
9 Sep 0215
& SE
9 Sep 0215
9 Sep 0540
3
9 Sep 0540 -
9 Sep 1015
Willie
1
18 Sep 2315 - 20 Sep 0900
Strong Monsoon Signals
24 Sep 0700 - 24 Sep 1020