29 August 2016 - bulletin 537

Updated at 1515 GMT
Latest warnings for 07L, 08L, 09L, 12W, 13E and 14E
Disturbance updates


NORTHERN ATLANTIC OCEAN
HURRICANE Gaston / 07L
Warning 28 from NHC at 1500 GMT
Position 31.0N 55.4W
Location 1680 miles W of the Azores
Movement 360° (N) at 1 knot
Maximum sustained winds 95 knots gusting to 115 knots
Winds of 34 knots or higher occur within 140 miles of the centre
Winds of 64 knots or higher occur within 35 miles of the centre
Threatened landmasses Azores
Minimum central pressure 963 mbar
Next warning from NHC at 2100 GMT

Gaston is moving slowly north. The storm will veer eastnortheast and weaken gradually as it heads towards the Azores.

Tropical depression 08L
Warning 05 from NHC at 1500 GMT
Position 33.2N 73.5W
Location 230 miles SE of Cape Hatteras, North Carolina
Movement 300° (WNW) at 6 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses North Carolina
Minimum central pressure 1011 mbar
Next warning from NHC at 2100 GMT

08L will head northwest towards the Outer Banks of North Carolina. The system will intensify to a tropical storm by tomorrow, and will curve northeast before making landfall. 08L will be absorbed by a front after 4 days.

Regional warnings
A tropical storm watch is in force for the North Carolina coast from Cape Lookout to Oregon Inlet
Rainfall totals of 1 to 3 inches, locally up to 5 inches, can be expected over eastern NC, including the Outer Banks.

Tropical depression 09L
Warning 04 from NHC at 1500 GMT
Position 23.6N 84.3W
Location 170 miles WSW of Key West, Florida
Movement 280° (W) at 6 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Cuba, Florida
Minimum central pressure 1007 mbar
Next warning from NHC at 2100 GMT

09L will move west, later north. The system will intensify and pass across northern Florida before reemerging into the Atlantic by the weekend.

Regional warnings
Rainfall totals of 4 to 8 inches, locally up to 12 inches, can be expected over Cuba. This could cause flash floods and mudslides. Rainfall totals of 3 to 5 inches, locally 7 inches, can be expected over southern Florida and the Florida Keys. Localised flooding is possible as a result.

EASTERN PACIFIC OCEAN

HURRICANE Lester / 13E
Warning 20 from NHC at 1500 GMT
Position 18.1N 129.2W
Location 1290 miles W of the southern tip of Baja California
Movement 270° (W) at 13 knots
Maximum sustained winds 110 knots gusting to 135 knots
Winds of 34 knots or higher occur within 105 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Threatened landmasses Hawaii
Minimum central pressure 957 mbar
Next warning from NHC at 2100 GMT

Lester will continue to move west, and will gradually weaken over the next few days. The storm will still be a hurricane as it approaches Hawaii to its northeast. 

Warnings on Lester will be issued by CPHC once it moves west of 140W.

CENTRAL PACIFIC OCEAN
HURRICANE Madeline / 14E
Warning 12 from NHC at 1500 GMT
Position 18.2N 143.7W
Location 695 miles E of Hilo, Hawaii
Movement 295° (WNW) at 9 knots
Maximum sustained winds 85 knots gusting to 105 knots
Winds of 34 knots or higher occur within 90 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Threatened landmasses Hawaii
Minimum central pressure 975 mbar
Next warning from NHC at 2100 GMT

Madeline will move westnorthwest, whilst intensifying to 90 knots tomorrow. Later in the forecast period, the storm will weaken and veer west. At present, this could see the storm in the Hawaiian islands by Wednesday, but on a large margin of error.

NORTHWESTERN PACIFIC OCEAN
TYPHOON Lionrock / 12W
Warning 47 from JTWC at 1500 GMT
Position 32.7N 143.4E
Location 281 miles SE of Yokosuka, Japan
Movement 045° (NE) at 12 knots
Maximum sustained winds 70 knots gusting to 85 knots
Winds of 34 knots or higher occur within 180 to 215 miles of the centre
Winds of 64 knots or higher occur within 35 miles of the centre
Threatened landmasses Japan, Manchuria
Maximum significant wave height 26 feet
Next warning from JTWC at 2100 GMT

Lionrock is weakening as it veers northwest. The storm will make landfall in northern Honshu as it becomes extra-tropical, making final landfall in extreme southeastern Russia on Wednesday.

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT
System No Invest Assigned
Position 29N 95W
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 5 days is LOW (10%)

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System No Invest Assigned
Position 13N 117W
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 5 days is LOW (20%)