

458 

FZCA72 TJSJ 280117

MWSSJU



Marine Weather Statement...RESENT

National Weather Service San Juan PR

917 PM AST Sun Sep 27 2020



AMZ710-712-715-722-725-732-735-280330-

Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-

Coastal Waters of Northern Puerto Rico out 10 NM-

Coastal Waters of Northern USVI and Culebra out 10 NM-

Anegada Passage Southward to 17N-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico

out 10 NM-

Caribbean Waters of Puerto Rico from 10 NM to 17N-

Coastal Waters of Southern Puerto Rico out 10 NM-

917 PM AST Sun Sep 27 2020



...STRONG THUNDERSTORMS AFFECTING THE REGIONAL WATERS...



The combination of favorable conditions aloft due to an upper 

level trough and increase low-level moisture convergence with the

passage of a weak tropical wave will enhance thunderstorm 

development across the regional waters. A few strong thunderstorms

have developed so far, but the frequency is expected to increase 

once the tropical wave approaches the area during the overnight 

and early morning hours. These thunderstorms will drift eastward 

at 10-15 knots with the potential to produce torrential rain and 

frequent lightning. Sudden waterspouts are possible with this 

activity.



Stay tuned for any additional statements or possible watches or

warnings from your National Weather Service forecast office in San Juan.



$$



470 

FZCA72 TJSJ 280117

MWSSJU



Marine Weather Statement

National Weather Service San Juan PR

917 PM AST Sun Sep 27 2020



AMZ710-712-715-722-725-732-735-280330-

Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-

Coastal Waters of Northern Puerto Rico out 10 NM-

Coastal Waters of Northern USVI and Culebra out 10 NM-

Anegada Passage Southward to 17N-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico

out 10 NM-

Caribbean Waters of Puerto Rico from 10 NM to 17N-

Coastal Waters of Southern Puerto Rico out 10 NM-

917 PM AST Sun Sep 27 2020



...STRONG THUNDERSTORMS AFFECTING THE REGIONAL WATERS...



The combination of favorable conditions aloft due to an upper 

level trough and increase low-level moisture convergence with the

passage of a weak tropical wave will enhance thunderstorm 

development across the regional waters. A few strong thunderstorms

have developed so far, but the frequency is expected to increase 

once the tropical wave approaches the area during the overnight 

and early morning hours. These thunderstorms will drift eastward 

at 10-15 knots with the potential to produce torrential rain and 

frequent lightning. Sudden waterspouts are possible with this 

activity.



Stay tuned for any additional statements or possible watches or

warnings from your National Weather Service forecast office in San Juan.



$$

