673912-1884-Weather-Report-June-1884- — Page 3

674 SUPPLEMENT TO THE HONGKONG GOV" GAZE

OF 16TH AUG., 1984.

Table X exhibits the Amount (0-10), Name und Direction, whence coming, of the Clouds. Where the names of Upper and Lower Clouds are given, but only one Direction, this refers to the Lower Clouds. The prevailing Direction of the Wind at the Observatory, as shewn in Table VIII, was about SE; at the Peak, as shewn in Table IX, E 27° S; the Direction of the Lower Clouds was E 32° S. The Upper Clouds came from about WSW until the 25th when their Direction changed to NE, thus indicating the existence of a Typhoon. On the 29th their Direction again changed to WSW.

On an average 71 per cent of the sky were clouded.

Table XI and Table XII exhibit the readings of the Barometer reduced to 32.0 Fahrenheit but not to Sea Level, and the Thermometers at Victoria Peak and at Cafpe d'Aguilar.

The Mean Height of the Barometer at the Peak was 27.965. The Mean Temperature was 72.4 at the Peak and 78.6 at Cape d'Aguilar, the Highest was 79.7 on the 27th at the Peak and 87.8 on the 26th and 27th at Cape d'Aguilar, and the lowest was 65.0 on the 2nd at the Peak, and 72.4 on the previous day at Cape d'Aguilar.

The Mean Temperature in Hongkong decreased one degree Fahrenheit for every 248 feet ascended. Table XIII exhibits the Relative Humidity as determined from observations of the Dry and Damp Bulb Thermometers. The Mean Relative Humidity at the Observatory was 83, at Cape d'Aguilar 91, and at Victoria Peak 95. The Least Relative Humidity registered was 52 at 4 p. on the 2nd at the Observatory; 78 at the same time at the Peak, and 78 at 4 p. on the 27th at Cape d'Aguilar.

Table XIV exhibits the Tension of Aqueous Vapour at the Observatory and at the Peak. The Mean Tension was 0.849 at the Observatory, and 0.766 at the Peak. These numbers are reduced to the mean of the 24 hours by aid of Table IV. The Greatest Tension registered was 0.992 at 10 p. on the 29th at the Observatory, and 0.876 at 10 a. on 26th at the Peak. The Least Tension was 0.647 at 4 p. on the 2nd at the Observatory, and 0.618 at 10 a. on the 1st at the Peak.

Table XV exhibits the amount of Rain measured at 10 a. on the following day, and the duration of Precipitation at the Observatory. The greatest amount fell on the 29th when it rained 2.585 at the Observatory, 2:66 at Stone Cutters' Island, and 2.10 at the Peak.

Lightning was seen at 8 p. on the 10th, at 1 a. on the 13th, in the evening of the same day, and in the evenings of the 14th and the 15th.

A Thunderstorm passed at 7 h. 30 m. on the 17th but not very close.

Strong Lightning continued during the night between the 18th and the 19th.

Lightning and distant Thunder were registered during the afternoon of the 19th, and likewise during the following afternoon and up to the morning of the 21st.

Thunder was heard in the afternoon of the 24th, and Lightning was seen the following night. Faint Lightning was also seen in the evening of the 26th.

Lightning was seen in the afternoon of the 29th and the following night. A Thunderstorm passed next morning. It was nearest at about 6 a. on the 30th.

Unusual Visibility was noticed on the 6th, the 15th, the 22nd, the 23rd, the 25th, the 26th, the 27th and the 28th.

Dew fell during the night between the 2nd and the 3rd and in the evening of the 26th. Lunar Coronas were seen on the 1st, the 3rd, and the 9th.

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