Invest AL98 is now PTC5 (5pm Sunday 11 August)

NHC has started advisories on Potential Tropical Cyclone Five (AL052024) in anticipation of it becoming a tropical depression, then tropical storm as it crosses the northern Caribbean …

click any image for a cromulent embiggenment experience.

The impact swath based on the new forecast looks like this:

Expect watches for the Virgin Islands (both US and British) tonight or first thing in the morning, and Puerto Rico tomorrow latest.

PTC5 isn’t a tropical system yet – but it’s getting close enough to the Caribbean NHC doesn’t want anyone caught off guard, as conditions are favorable for development, and it should sweep across the leeward islands as a tropical storm.


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