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FLCA42 TJSJ 200856
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
456 AM AST Tue May 20 2025

AMZ711>745-PRZ001>013-210900-
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-
456 AM AST Tue May 20 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 the interior, north
central and northwestern Puerto Rico. 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 most individuals
sensitive to heat, especially those without effective cooling
and/or adequate hydration. Those extremely sensitive to heat face
the highest risk. Some health systems and heat-sensitive
industries could be affected. These conditions are most likely
across northern, western, and southern municipalities of Puerto
Rico.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Primary concerns through the period will focus on localized
excessive rainfall and lightning each afternoon. Above-normal
temperatures will persist, with an elevated heat risk mainly
Wednesday across urban and coastal areas, then limited heat risk
will likely prevail the rest of the week. As trade winds
strengthen, expect a return of moderate rip current risk by the
end of the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.

$$

AMZ716-726-VIZ001-002-210900-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
456 AM AST Tue May 20 2025

This Hazardous Weather Outlook is for portions of USVI.

.DAY ONE...Today and Tonight

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Limited heat risk will likely continue through mid week. Then as
trade winds strengthen, expect a return of moderate rip current
risk by the end of the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.

$$