570 SUPPLEMENT TO THE HONGKONG GOVT GAZETTE OF 27TH JUNE. 1835.
reported from Bolinao. The weather continued bad at S. Cape with a strong NE breeze, which increased to a fresh NNE gale during the following night. Strong NE breezes were registered in the northern part of the Formosa Straits. The lowest reading of the barometer reported from Manila is 29.71 at 4 p. on the 19th and the 20th.
At 10 a. on the 21st I notified, that the Typhoon had entered the China Sea through the Bashee Channel and appeared to be moving towards the Straits of Formosa. It is now seen, that at the time the centre must have been situated in 21° 7′ N, 121° 16′ E. It appears, that it then proceeded towards NNW passing east of the lighthouse at S. Cape, to which it approached within about ten miles shortly after noon. It crossed the plain along the western coast of Formosa and entered the Straits about 7 when it went northwards. It passed east of Takow about 4p. and was east of Foochow about 5 à. next morning, after which it went towards NNE.
p.
The following observations were made in the harbours and at the lighthouses. The barometer at S. Cape was a sluggish and unsatisfactory instrument, which has since been replaced by a standard barometer verified by comparison with the instruments at this Observatory. The registers from Matsou and Keelung were kept on board the French men-of-war Triomphante and Duguay Trouin. I have determined and applied corrections to the barometer readings as well as possible from available data but the result is not satisfactory.
The isobars may have been approximately circular in shape. It appears that a strong gale corresponded to a gradient of 0. 033 inches in 15 nautical miles. But at several stations west of the centre in the Straits the N gales continued to blow after the passage of the centre, the wind backing subsequently. The wind formed on an average an angle of 65° with the gradient. It was much less in the advancing semi-circle (about 40°) than in the rear (about 90°) owing to the steadiness of the northerly winds.
From observations made on the S. S. Thibet and the S. S. Telemachus it is seen that the lower clouds came from about the same direction as the wind; but their direction did not hang so long about North as the surface winds. The former ship, which passed through the Straits on the 21st, encoun- tered a storm from NNW at midnight. The sea was very high, the rain heavy and continuous and the squalls fierce.
1884. 21st, 9 a........
29.10 NNE
10
10 à.......
...
29.26
11 a........
Noon,
1 p.,.....
2 p.......
3. p.
29.09
NW 10
29.17
29.15
:.
29.12
29.15
WSW 10 29.11
4 P
:
5 p.,.. 6 p,..
29.11 29.11
ZZZ ZZZZ:
Force.
S. CAPE.
TAKOW.
FISHER ISLAND.
LAMOCKS.
HONGKONG.
Wind.
Wind.
Wind.
Wind.
Wind.
SEPTEMBER.
Baro-
ineter.
Baro-
Baro-
Baro-
Baro-
Dir.
Force.
meter,
meter.
Dir.
Dir.
Force.
meter.
mieter.
Dir.
Dir.
Force.
29.31
N
.29 .25
N
.23
N.
.19
N
aaaa a
Z Z Z Z7
29.56
NW
29.56
NW
:
13
N
.12
NNW 11
29.53 NW
.12
NNW
.11
XNW 12
29.25 WSW 9 29.13
N
.07
NNW 12 29.51
NW
7 p...
29.20 N
.09 NNW 12
8 p.,
29.23 NNW
.11
9 p.,.
29.39 WSW
29.26 NNW 9
14
NN W
NNW 12 12
29.52
NW
10 p..
29.30
NW 10
.15
NNW 12
11. p.,... Midt.,
29.33 NW 10
.18
NNW 12
29,50 WSW
22nd, 1 a.,
2 a.,
3 a.,
29.51 WSW
4 a..
5 an
29.36 29.39 29.43 W 29.48 29.52 WSW 29.56
W
11
.21
NNW 12
29.54
NW
W
10
.24
NNW 12
.28 NNW 10
W
.39
NW 10 29.55 NW .42 NW 8
miialialiati ai ai or
5
5
Force.
29.762
W
762
NW
.750
NW
.738 .715
NW
NW
.686 NW
.687 NW
.695 NW · 3
.698 WNW
3
.707 wxw 2
712 NW
.738 NW
.752 NNW
.764
.766
NNW 2 N- 2
024*
NNW
3
.732
NNW
X
.727 NNW
.732 NNW
3
.745 NW
AYSW
.45
6 a.
29.67 WSW
29.58
WSW
6
.49
6 WNW! WNW 6 29.57
.755
XW
3
NW
.778
NW
3
78.
.787 NW 3
8 a.,
9 a.,
29.70 WSW
29.68
NW 4
.56
W 6
29.65
WNW
.794 NW .805 NW
1
10 a., **..
.817
NNW
3
:
11 a., Noon,
1 p.
P., 3 p..
4
5 ....
6
29.74 WSW
29.70
NW 3
.64
SW
29.68
WNW
-
29.70 WSW
5
29.71
N
3
.64
SW
29.68 WNW
* 29.72 W
.66
NNE
29.68
NNW
co co co
3
.803 NNW
.781
.788 NNW NNW .781 NNW
NW
.766 .757 NW
.770
NW
.780 XW
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