1923
1924
JANUARY
CALM
5
13 23 WIND REACHED FORCE No 7 - E
CALM
8%
1925
CALM
8
1926
281.25 WIND REACHED FORCE
29-1.25
N° 7
- ENE a E
CALM
4 %
1927
CALM
5 %
SHAM SHUI DE
KOWLOON PENINSULA
SCALE
| INCH = I MILE
YAU MA TI
SUGGESTED
KAU LUNG
KOWLOON
CITY
AERODROME SITE
TONG
HUNG
5 HOME)
-OBSERVATORY
TSIM SHA TSUI
KOW LOON
BAY
= OBSERVATORY WHERE WIND FORCE
RECORDED.
EXPLANATION OF BEAUFORT
SCALES
BEAUFORT No [
INDICATES WIND FORCE
I
3 MILES PER HOUR
M
2
H
"
"}
-
4 7
}
་་
3
#
8 - 12
|
M
4
J
13 - 18
H
и
5
19 - 24
11
B 6
25 - 31
1J
W
+1
7
*
32-38 U
n
15
10
8
พ
39-46 11
M
SCALE OF PERCENTAGE OF WIND
10
O
10
..20 30
40
50
60
70 80
100%
SCALE
3 IN. = 100%
67
P. W. D HONG XONG FEB 1928.