THE HONGKONG GOVERNMENT GAZETTE, MAY 7, 1920.
197
In the absence of more exact information the following table of velocities in knots for the several latitudes may be useful.
BEFORE RECURVING.
AFTER RECURVING.
LATITUDE. *
Ordinary Mean. Velocity as Exceptional
Limits.
signalled.
Maximum Ordinary recorded. Limits.
Exceptional Maximum
Mean. Velocity as
signalled.
recorded.
to 15
10 12
[ I
22
20
ག
14
10
125
24
20
: 25
16
10
1 1
13
22.
25°
19
30%
14
23 17
21
30° 35°
40
30
15
I I
35
» 23
18
23
10
* 40°
I I
**
36 20
25
16
42
45°
I 2
,, 36
21
26
45
* 50°
**
17 36
50
21
26
50°
55°
97
12 » 37
! 2 36
48
21
26
52
26
49
Seamen should realise that, whatever may be the probability of a certain velocity in a given case, there is always the possibility that it may be greatly exceeded. The safest guide is to make allowance for extreme velocity.
TYPHOON SIGNAL.
Time
DEPRESSION SIGNAL.
Time
Direction
Latitude
Longitude
Radius, etc.
Latitude
Direction
Longitude
Radius, etc.
A severe typhoon within 30 miles of lat. 26° N., long. 120° E., travelling N.E. Warning issued this morning.
TYPHOON SIGNAL.
A continental depression in lat. 56° N., long. 109 E., travelling E.S.E. Warning issued yesterday morning.
GALE SIGNAL.
Time
Latitude
Condition
Longitude
Radius, etc.
Time
Region
Direction
A typhoon within 60 miles of lat. 20° N., long. 122 E., splitting in two. Warning issued this afternoon.
The north coast of Hokkaido threatened by a gale from S.W. Warning issued yesterday afternoon.
:
No comments yet.
Private notes are available after approval.