6 August 2017 - bulletin 458

Updated at 2245 GMT
Latest warnings for 07W
First warning for 07L
Disturbance update


NORTHWESTERN PACIFIC OCEAN
TYPHOON Noru / 07W
Warning 69 from JTWC at 2100 GMT
Position 32.4N 133.0E
Location 123 miles SSE of Iwakuni, Japan
Movement 035° (NE) at 9 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 105 to 115 miles of the centre
Winds of 64 knots or higher occur within 20 miles of the centre
Threatened landmasses Japan
Maximum significant wave height 20 feet
Next warning from JTWC at 0300 GMT

Noru is moving northeast and will make landfall in Shikoku and Honshu later today (Monday). The storm will then turn extra-tropical.

NORTHERN ATLANTIC OCEAN
Potential tropical cyclone 07L
Warning 01 from NHC at 2100 GMT
Position 15.6N 82.0W
Location 460 miles ESE of Chetumal, Mexico
Movement 290° (WNW) at 10 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Yucatan Peninsula
Minimum central pressure 1008 mbar
Next warning from NHC at 0300 GMT

Disturbance 07L has been declared as a potential tropical cyclone, and will track westnorthwest to the Yucatan Peninsula. After traversing that landmass, the cyclone will reemerge over the Gulf of Campeche, where it will strongly reintensify, potentially reaching hurricane strength before making landfall on the Mexican Gulf coast.

Regional warnings
A tropical storm WARNING is in force for the coast of Mexico from Chetumal to Campeche
A tropical storm watch is in force from Belize City to the border of Mexico.
Rainfall totals of 3 to 6, locally up to 12 inches, can be expected over the Yucatan Peninsula, giving rise to potentially life-threatening flash floods.

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 99L
Position 13.5N 41.2W
Likelihood of tropical cyclone formation within 48 hours is LOW (20%) 
Likelihood of tropical cyclone formation within 5 days is MEDIUM (50%)

Update from NHC at 2100 GMT
System 90L is now 07L

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