620538-1931-Local-storm-Signal-Code — Page 2

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THE HONG KONG GOVERNMENT GAZETTE, DECEMBER 31, 1931.

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. Tumar, the Harbour Office, on the flagstaff near the Field Officer's Quarters at Lyemun, and at Gough Hill Police Station. They will have the same significa- tion as the day signals.

Signal No. 10 will be accompanied by explosive bombs as above, in the event of the information conveyed by this signal being first published at night.

Supplementary Warnings.

When Local Siguals are displayed in the Harbour, signals will be displayed as follows:-

When No. 1 Signal is displayed in the Harbour.

Red T by day.

Red Light above a Green Light 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.

Saikung.

Cheung Chow.

Shataukok.

Gap Rock.

Tsun Wan.

Ping Shan.

Stanley.

Shaukiwan.

Tai O. Waglan.

Also on Police cruising launches and on Police launches Nos. 5 and 6, from 1932, January 1.

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 Scale, 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 typhoons 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.

25th December, 1931.

T. F. CLAXTON, Director.

NOTE: This Notification is published to draw attention to the Supplementary Warnings which will be displayed on Police launches, and to the Supplementary Night Signals which will be used from 1932, January 1, when Local Signal No. 1 is displayed in the Harbour.