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Monday, 02 September 2019 | 23:23

Marine Surveys at Black Point Power Station
Monday, September 2, 2019, Hong Kong

For approximately 3 weeks, marine surveys involving hydrographic and marine geophysical surveys will be carried out within the following areas:

This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (D):
(A) 22 deg. 26.752’N / 113 deg. 53.996’E
(B) 22 deg. 25.333’N / 113 deg. 55.063’E
(C) 22 deg. 25.316’N / 113 deg. 55.005’E
(D) 22 deg. 26.724’N / 113 deg. 53.946’E

This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (E) to (H):
(E) 22 deg. 25.652’N / 113 deg. 54.852’E
(F) 22 deg. 25.481’N / 113 deg. 55.039’E
(G) 22 deg. 24.476’N / 113 deg. 53.978’E
(H) 22 deg. 24.647’N / 113 deg. 53.790’E

The surveys will be carried out by one survey boat and one work boat.

A working area of approximately 50 metres around the survey boat will be established. Yellow marker buoy fitted with yellow flashing light will be laid to mark the position of the anchor extending from the survey boat.

The hours of work will be round-the-clock.

Vessels engaged in the surveys will display signals as prescribed in international and local regulations.

Vessels navigating in the vicinity should proceed with caution and at slow speed.

(For information about operations in Hong Kong contact GAC Hong Kong at [email protected])

Source: Government of the Hong Kong SAR Marine Department Notice No.135 of 2019

‘Extremely dangerous’ Hurricane Dorian
Monday, September 2, 2019, Bahamas

At 500am EDT (0900 UTC), Hurricane Dorian was near latitude 26.6 North, longitude 78.2 West and moving toward the west near 1mph (2 km/h). A slow westward to west-northwestward motion is forecast during the next day or so, followed by a gradual turn toward the northwest and north.

On this track, the core of extremely dangerous Hurricane Dorian will continue to pound Grand Bahama Island through much of today and tonight. The hurricane will move dangerously close to the Florida east coast tonight through Wednesday evening.

Maximum sustained winds are near 165mph (270 km/h) with higher gusts. Dorian is a category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Although gradual weakening is forecast, Dorian is expected to remain a powerful hurricane during the next couple of days.

Hurricane-force winds extend outward up to 45 miles (75 km) from the center, and tropical-storm-force winds extend outward up to 140 miles (220 km).

Catastrophic hurricane conditions continue on Grand Bahama Island. Do not venture out into the eye, as winds will suddenly increase after the eye passes.
Hurricane conditions are expected within the Hurricane Warning area in Florida by late tonight or Tuesday. Hurricane conditions are possible in the Hurricane Watch area on Wednesday.
Tropical storm conditions are expected within the Tropical Storm warning area today and Tuesday, and are possible in the Tropical Storm watch area by tonight.

A life-threatening storm surge will raise water levels by as much as 18 to 23 feet above normal tide levels in areas of onshore winds on Grand Bahama Island. Near the coast, the surge will be accompanied by large and destructive waves…

Dorian is expected to produce the following rainfall totals through late this week:
– Northwestern Bahamas: 12-24 inches, isolated 30 inches.
– Coastal Carolinas: 5-10 inches, isolated 15 inches.
– Central Bahamas and the Atlantic Coast from the Florida peninsula through Georgia: 2-4 inches, isolated 6 inches.
This rainfall may cause life-threatening flash floods.

Large swells are affecting east-facing shores of the Bahamas and the Florida east coast, and will spread northward along the southeastern United States coast during the next few days. These swells are likely to cause life-threatening surf and rip current conditions.

A brief tornado is possible this afternoon into tonight along the immediate coast of east-central Florida.

(For information about operations in the Americas contact the GAC Houston Hub Agency Center at hub.[email protected])

Source: Extracts from National Hurricane Center, Miami FL, Hurricane Dorian Advisory No.36 issued at 500am EDT on Monday 2 September 2019

Installation of floating sea barrier off PA Water-Venture (Pasir Ris)
Monday, September 2, 2019, Singapore

The working period or the installation of a floating sea barrier off PA Water-Venture (Pasir Ris) has been extended. The works are now being carried out until 29 February 2020.

According to the Maritime and Port Authority of Singapore Port Marine Notice No.081 of 2019, the work will be conducted 24 hours daily – including Sundays & Public Holidays – within the working area bounded by the following co-ordinates (WGS 84 Datum):
1) 1 deg. 23.963’N / 103 deg. 55.867’E
2) 1 deg. 24.028’N / 103 deg. 55.953’E
3) 1 deg. 23.907’N / 103 deg. 56.098’E
4) 1 deg. 23.621’N / 103 deg. 56.289’E
5) 1 deg. 23.385’N / 103 deg. 56.517’E
6) 1 deg. 23.144’N / 103 deg. 56.914’E
7) 1 deg. 22.004’N / 103 deg. 57.724’E
8) 1 deg. 22.951’N / 103 deg. 57.716’E
9) 1 deg. 23.095’N / 103 deg. 56.891’E
10) 1 deg. 23.344’N / 103 deg. 56.483’E
11) 1 deg. 23.588’N / 103 deg. 56.245’E
12) 1 deg. 23.872’N / 103 deg. 56.055’E
13) 1 deg. 23.962’N / 103 deg. 55.952’E
14) 1 deg. 23.930’N / 103 deg. 55.910’E

Installation of floating sea barrier will be carried out using crane and work barges. These barges will be assisted by tugs. Safety boats will be deployed to warn other craft in the vicinity of the working area.

Craft involved in the works will exhibit the appropriate local and international day and night signals.

When in the vicinity of the working area, mariners are reminded to:
a) Keep well clear and not to enter the working area;
b) Maintain a proper lookout;
c) Proceed at a safe speed and navigate with caution;
d) Maintain a listening watch on VHF Channel 21 (Sembawang Control);
e) Communicate with Sembawang Control on VHF Channel 21 for assistance, if required.

For information about operations in Singapore contact GAC Singapore at [email protected]
Source: GAC

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