F 5
The Captain of the S.S. Anamba reports a typhoon in latitude 15° 23' N. and longitude 110°33' E on July 16. The wind veered from N at 10 p.m. on the 15th to SE by 6 a.m. on the 16th and SSW by 8 a.m. The force increased from 1 at 4 p.m. on the 15th to 11 at 4 a.m. on the 16th and then decreased to 7 by 9 a.m. The note adds that the vessel drifted approximately N 29° E 44 miles in the typhoon. The Euryalus, 120 miles to the northward, had a steady barometer with light to moderate ENE winds.
On July 22 a secondary formed in the southern portion of a depression to the east of Luzon which was travelling northward. The secondary moved westward and passed near Pakhoi on July 25. It caused a gale at Hongkong on July 24.
On September 2 a secondary formed in the north-east portion of a depression in the China Sea, whose direction of motion was uncertain. The secondary developed into a typhoon and caused a gale at Hongkong. It filled up near Woochow on September 3.
The attention of meteorologists is drawn to these three typhoons. No indication of the first was shown on the weather map. This Observatory had no knowledge of its existence till nearly 8 months later, when the log of the Anamba was received by the courtesy of the Director of the Philippines Weather Bureau. Its track is very uncertain. It was evidently short-lived and of small diameter. Both of the others absorbed the primary cyclone, and one formed in the southern portion of it while the other formed in the north-east portion. They were evidently analogous to the typhoon which caused so much damage to Hongkong on September 18, 1906.
The formation of these secondaries in the China Sea, where there are no observing stations, adds to the difficulty of the weather forecaster, and emphasises the importance of wireless weather telegrams from ships. In their own interests every vessel with a wireless outfit should send observations in accordance with the Notice to Mariners which is supplied to all shipping companies in Hongkong.
IV.---PUBLICATIONS
Daily Weather Report and Map.-A weather map of the Far East for 6 a.m. of the 120th meridian, and the Daily Weather Report (containing meteorological observations, usually at 6h. and 14h., from about 40 stations in China, Indo-China, Japan, the Philippines, and Borneo) and daily weather forecasts for Hongkong to Gap Rock, the Formosa Channel, the south coast of China between Hongkong and Lamocks, and between Hongkong and Hainan, were issued as in former years. Copies of the map were exhibited on notice boards at the Hongkong Ferry Piers, Blake Pier, and the Harbour Office. One copy was sent daily to the Director of the Meteorological Observatory, Macao. Forty copies of the Daily Weather Report were distributed to various offices, etc., in the Colony, and a copy was sent daily to the Director of the Meteorological Observatory, Macao. Copies were sent every week to the Hydrographic Office, Bangkok.