676 THE HONG KONG GOVERNMENT GAZETTE, DECEMBER 19, 1930.
When the centre of a typhoon passes over the locality the wind decreases rapidly to a calm, or nearly calm, and blows violently from the opposite direction when the centre has passed.
The signal will be lowered when it is considered that all danger is over.
The Day Signals will be displayed on the Radio mast at the Royal Observatory, at the Harbour Office, H.M.S. Tamar, Green Island, Hong Kong and Kowloon Wharf and Godown Co., the Standard Oil Co. at Lai-chi-kok, the flagstaff near the Field Officer's Quarters at Lyemun, Gough Hill Police Station and Taipo (District Office's flagstaff).
NIGHT SIGNALS. (Lamps.)
2
3
4
5
6
WHITE
WHITE
GREEN
WHITE
WHITE
GREEN
WHITE
GREEN
WHITE
WHITE
GREEN
WHITE
WHITE
WHITE
GREEN
RED
GREEN
WHITE
7
8
10
GREEN
WHITE
GREEN
RED
GREEN
WHITE
GREEN
GREEN
WHITE
GREEN
GREEN
RED
The Night Signals will be displayed, at sunset, on the Radio mast at the Royal Observatory, on the tower of the Railway Station, H.M.S. Tamar, the Harbour Office, on the flagstaff near the Field Officer's Quarters at Lyemun, Kowloon City Police Station, and at Gough Hill Police Station. They will have the same signification as the day signals.
Signal No. 10 will be accompanied by explosive bombs as above, in the event of the information conveyed by this sigual being first published at night.
Supplementary Warnings.
When Local Signals are displayed in the Harbour, signals will be displayed as follows :-
When No. 1 Signal is displayed in the Harbour.
Red T by day.
2 Red Lights vertical by night
When Signals Nos. 5 to 10 are displayed in the Harbour.
Black Cone by day
2 Green Lights vertical by night.
These Signals will be displayed at the following Stations :
Aberdeen.
Cheung Chow,
Gap Rock.
Ping Shan.
Stanley.
Shaukiwan.
Saikung.
Shataukok.
Tsun Wan.
Tai 0. Waglan.
Further details can always be given to ocean vessels, on demand, by signal from Lighthouses, or by wireless telegraphy.
The object of the code is to give at least 24 hours warning of a gale (Force 8 by Beaufort Seale, or 40-45 m.p.h., mean velocity by Dines Anemometer) and also warnings of expected changes in the direction and force of the wind. Owing however to the uncertain movements of typhoons and to insufficient telegraphic observations, it will occasionally happen that signals 5 to 8 may be displayed without a gale occurring at Hong Kong, or even Gap Rock, but the reverse is not likely to happen, except in the case of typhoous forming in the vicinity and travelling rapidly towards Hong Kong, or should the direction of motion of a located typhoon alter, or its rate of progression increase, abnormally.
Signal No. 1 is intended as a warning to "Stand By" and watch for the next signal. When it is hoisted after one of Nos. 5 to 8 has been displayed it will mean that, on account of a change in the track of the typhoon, or for some other reason, a gale is no longer expected from the direction indicated by the last signal, and that another black sigual may possibly be hoisted later.
T. F. CLAXTON,
19th December, 1930.
Director.
:)
No comments yet.
Private notes are available after approval.