The areas affected include…
Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N…
Coastal Waters of Northern Puerto Rico out 10 NM…
At 631 PM AST, Doppler radar indicated a strong thunderstorm, capable
of producing winds to around 30 knots. This thunderstorm was located
offshore from Arecibo to Manati. The thunderstorm was nearly
stationary.