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FLCA42 TJSJ 270919
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
519 AM AST Mon Oct 27 2025

AMZ711>745-PRZ001>013-281000-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Northwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
519 AM AST Mon Oct 27 2025

This Hazardous Weather Outlook is for portions of Puerto Rico.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms. Stay alert and be prepared 
to take shelter if storms develop.

.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across eastern Puerto Rico,
including the San Juan metropolitan area. There is a low chance 
of isolated flash floods. Elsewhere, plan for water ponding on 
roads and in poorly drained areas.

.Excessive Heat...This level of heat affects primarily those
individuals extremely sensitive to heat, especially when outdoors
without effective cooling and/or adequate hydration. These
conditions are most likely across lower elevations and coastal
areas.

.Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly
across coastal areas of southwestern Puerto Rico. Unsecured items
could blow around.

.Marine Conditions...Small craft should exercise caution,
particularly across the offshore Atlantic waters and Mona 
Passage.

.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across the northern half of Puerto Rico,
Culebra and Vieques. Isolated stronger rip currents may occur 
elsewhere, especially near piers, jetties, and channels.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Lightning will continue through mid to late week due to 
instability from distant Hurricane Melissa, then shift to more 
localized afternoon activity. Rainfall will range from limited to 
elevated, focusing on the east and southeast early in the week and
the north and northwest by the weekend. Heat remains elevated 
through most of the week, while winds stay mostly light with 
occasional gusts over the southwest, Vieques, and Culebra. Marine 
conditions will turn choppy to hazardous as northerly swells 
arrive, with a high rip current risk Tuesday–Wednesday and 
moderate levels afterward.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

AMZ716-726-VIZ001-002-281000-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
519 AM AST Mon Oct 27 2025

This Hazardous Weather Outlook is for portions of USVI.

.DAY ONE...Today and Tonight

.Lightning...Isolated thunderstorms. Stay alert and be prepared 
to take shelter if storms develop.

.Excessive Rainfall...Ponding of water in roads and poorly
drained areas. There is a low chance of localized urban and small
streams flooding.

.Excessive Heat...This level of heat affects primarily those
individuals extremely sensitive to heat, especially when outdoors
without effective cooling and/or adequate hydration. 

.Marine Conditions...Small craft should exercise caution,
particularly across the offshore Atlantic waters.

.Rip Currents...Life-threatening rip currents are possible in the
surf zone across most local beaches. Isolated stronger rip 
currents may occur elsewhere, especially near piers, jetties, and 
channels.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Isolated thunderstorms and limited flooding are possible 
Tuesday–Wednesday. Heat stays elevated most of the week, and winds
increase again toward the weekend. Seas will become choppy to 
hazardous with high rip current risk midweek, lowering late week 
before rising again over the weekend.ico, Culebra, and the USVI 
remaining at or slightly above 80°F.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$