In the following table are given the number of hours the local signals were hoisted in each of the years 1912-1918:--
Year Red Signals. Black Signals. Bombs.* Number of hours hoisted. Number of hours hoisted. Number of times fired. 1912 151 164 · 1913 146 1914 146 189 I 1915 64 120 1916 70 201 I 1917 102 36 I 1918 33 102 IThe figures in the above table include the number of hours that night signals, corresponding to the day signals, were hoisted.
Prior to July, 1917, the red signals indicated that the centre of the typhoon was believed to be more than 300 miles distant, and the black less than 300 miles, the returns for 1912-1916 are therefore not strictly comparable with those for 1917 and 1918. The latter suggest however that the use of the new local storm warning code has already saved the Colony a considerable amount of money. The loss incurred by the disorganisation of the work in the harbour, consequent upon the display of typhoon signals, is not easy to estimate. It probably amounts to many thousands of dollars a day, however.
VI.--METEOROLOGICAL OBSERVATIONS FROM SHIPS, TREATY PORTS, &c.
Logs received. In addition to meteorological registers kept at about 40 stations in China, meteorological logs were received from 34 ships operating in the Far East. These logs, representing 2,223 days' observations, have been utilised for verifying typhoon tracks. The corresponding figures for the year 1917 were 85 and 3,767.
Pilot Charts.-No progress has been made with the construction of Pilot Charts owing to the absence of the First Assistant on military service.
* Three bombs fired at intervals of 10 seconds indicate that wind of typhoon force is anticipated.
- F 10
In the following table are given the number of hours the local signals were hoisted in each of the years 1912-1918 :--
Red Signals.
Black Signals.
Bombs.*
Year
Number of hours hoisted.
Number of times fired.
1912
151
164
·
1913
146
1914
146
189 178
I
1915
64
120
1.916
70
201
I
1917 1918
102
33
36
102
I
The figures in the above table include the number of hours that night signals, corresponding to the day signals, were hoisted.
Prior to July, 1917, the red signais indicated that the centre of the typhoon was believed to be more than 300 miles distant, and the black less than 300 miles, the returns for 1912-1916 are there- fore not strictly comparable with those for 1917 and 1918. The latter suggest however that the use of the new local storm warning code has already saved the Colony a considerable amount of money. The loss incurred by the disorganisation of the work in the harbour, consequent upon the display of typhoon signals, is not easy to estimate. It probably amounts to many thousands of dollars a day,
however.
VI.--METEOROLOGICAL OBSERVATIONS FROM SHIPS, TREATY PORTS, &c.
Logs received. In addition to meteorological registers kept at about 40 stations in China, meteorological logs were received from 34 ships operating in the Far East. These logs, representing 2,223 days' observations, have been utilised for verifying typhoon tracks. The corresponding figures for the year 1917 were 85 and 3,767.
Pilot Charts.-No progress has been made with the construc- tion of Pilot Charts owing to the absence of the First Assistant on military service.
* Three bombs fired at intervals of 10 seconds indicate that wind of typhoon force is anticipated.
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