}
SUPPLEMENT TO THE HONGKONG GOVT GAZETTE OF 23RD MAY, 1885. 491
hard squalls, and subsequently heavy rain fell. At the same time it was still raining at S. Cape, the gale abated.
Between 9 p. and 10 p. the Typhoon gun in Hongkong was fired one round, as I had been nel that it would be impossible to fire it after the latter hour, and on due consideration I con- it risky to neglect to give warning to the Colony of the violent Typhoon, that would shortly within so short a distance and would probably give rise to a SW gale after passing. In this case ver the greatest violence of the wind was confined to the portion of the Typhoon north of the It blew a fresh NE gale and the sea was tremendous already in the forenoon as far north as at northern entrance to the Formosa Straits. The gale veered to SE during the night. I believe it ot unusual for the wind to be most violent north of the center and for the disturbance to extend hest to that side, a circumstance that reminds one of the Mauritius Hurricanes, the E winds cted with which are so extensive according to Meldrum. Whenever a Typhoon crosses the inn Sea, we have generally a long spell of fresh E winds.
The center of the Typhoon passed over Lamocks, the lighthouse outside Swatow, about 3 a. on 22nd. The Typhoon ceased about 2 h. 30 m. a. and recommenced about 4 h. 30 m. a. Captain Arox in the S. S. Fokien, then at anchor in the Tongsang Harbour, when about 18 miles from the uter, noticed stars overhead, before and after which the sky was densely covered with clouds, from ich a deluge of rain was pouring down. Six inches of rain during the Typhoon were measured in Amoy, but as the gauge is situated on the roof of the Custom House, the quantity which actually fell y not have been far short of ten inches. Four inches of rain were measured in Swatow. A heavy wnpour of rain is also reported from Fisher Island.
The center of the Typhoon moved towards N 124° W with an increasing velocity, which at 3 a. n the 22nd was about 23 miles an hour. The diameter of the central calm was about 46 miles, hich is I believe greater than usual. Its center did not coincide with the place where the barometer rad lowest i. e. the center of the isobars, but was situated apparently about 20 miles SSE of that, so at the calm followed after the lowest reading of the barometer. The wind made an angle with the De towards the center of the central calm of 52° in the advancing semicircle and 45° in the rear or on
4810 average
-so that an observer with his back turned to the wind had the center about midway tween his front and his left. The temperatures recorded vary between 73° and 82°. The average mperature was 78°. It was not higher near the center than elsewhere. The sky was overcast above
miles in front of the center. Heavy rain fell above 100 miles in front.
On an average the wind blew a moderate gale (7), when the gradient was 0.02 inches in 15 les, a fresh gale (8), when the gradient was 0.04, a strong gale (9), when the gradient was 0.06, a wide gale (10), when the gradient was 0.07, a storm (11), when the gradient was 0.09 and with
phoon force (12), when the gradient was 0.12.
The following table exhibits the most important records concerning this Typhoon. The readings the barometers have been reduced to 32° and to Sea Level, and index corrections, which I have termined as accurately as possible from available data, have been applied:-
OBSERVATIONS MADE DURING THE TYPHOON OF AUGUST 21ST & 22ND, 1884.
FISHER ISLAND.
AMOT.
LAMOCKS.
SWATOW.
BREAKER POINT.
HONGKONG.
Wind.
Wind.
Wind.
Wind.
Wind.
Wind.
AUGUST.
Baro-
meter.
Baro-
Baro-
Baro-
Baro-
Baro-
Dir.
29.57 NE
9
29.61
P.,
1
P
Il pa
E 6
:.
29.65
S
Midt,
23.9
3 R., .***
$ 2., .***
61.3.
..
****
ila..
29.53 E 29.49 E
29.46 E
29.44 SE 10 29.43 SE 10 29.44 SE 10 29.45 SE 10 29.50 SSE 10
29.56 SSE 10 29.62 $ 29.63 S 8 29.65 S 29.66 $
29.41 NE 29.31 ENE 29.23 29.21 E 11 29.22 SE 11 29.30 SE 11 29.36 SE 29.41 SE 9
oliai Ai
Force.
meter.
Dir.
Force.
meter.
Dir.
Force.
meter.
Dir.
Force.
meter.
Dir.
Force.
meter.
Dir.
Force.
4
29.59 NE
ลง
2
29.47 ENE 29.46
:.
29.42
29.46 NE 29.46 NE 29.43
29.48
E
7
29.53
:.
29.54 N 29.56 NE
Z.Z
N
29.59 NE
9
29.51 NE 29.47 NE
**
29.41 ENE 9
29.37
29.26
4 29.13 NE 12
28.96 NE 12 29.37 NW 28.82 NE 12 29.28 NW 28.85 NE 5 29.12 NW 9 28.89 NE 5 29.11 NW 28.94 SW 12 29.07 NW 29.06 SW 12 29.09 TP SW 11 29.19 W SW 10 29.30 sw 29.39 SW 9 29.38 sw 29.40 SW
NE 29.42 NE 5 29.46 NE
5
29.45 NE 29.41 NW
29.43
NE 8
29.58 NE
29.60 NNE
29.59 ENE
7
29.81 NE 8
29.56 NNW
29.57 W 1 1
29.23 NE
9
29,55 WNW 29.53 NW 29.53 NW
1
29.23 sw
9
29.45 sw
29.44 sw
29.53 NW 29.53 xw 29.56 29.57 29.58 29.60 29.61
*
W
W
W
W
W
29.47 SSE 8
29.49 sw
6
29.46 sw
29.45 SW
6 29.61 W
29.64
29.63
S
29.63 SSE
29.64 SSE 29.65 SSE
aaaaN
9
29.48 S 8
9
29.50 ssw 7 29.55 sw 6 29.51 ssw
29.44 SW 29.41 SW 4 29.41 sw 4 | 29.59 SW 29.41 sw 29.41 SW
29.59 W 29,58 sw
5
29.58 ssw
:.
29.54 ssw 6 29.62 S
5
29.63 SW
4
29.58 ssw 29.59ssw
29.59 ssw
50 00 00 01 2 10 20 30 ANNNN INN
2
:.
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