Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service San Juan PR
456 AM AST Fri Jul 18 2025
AMZ711>745-PRZ001>013-190900-
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 Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of Puerto Rico.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms, particularly across the
interior and western sections. 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 and western
sections. 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 the coastal urban locations.
.Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly
across the north coast. Unsecured items could blow around.
.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across Atlantic and eastern coastline.
Isolated stronger rip currents may occur elsewhere, especially
near piers, jetties, and channels.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
An elevated excessive heat threat will continue through at least
the middle of next week across most urban coastal locations. A
wet and unstable weather pattern will increase the risk of
flooding and thunderstorms on Saturday. Expect breezy conditions
during the weekend and around the middle of next week. The
moderate risk of rip currents will prevail through much of the
forecast period.
.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.
$$
Hazardous Weather Outlook
National Weather Service San Juan PR
456 AM AST Fri Jul 18 2025
AMZ716-726-VIZ001-002-190900-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
456 AM AST Fri Jul 18 2025
This Hazardous Weather Outlook is for portions of USVI.
.DAY ONE...Today and Tonight
.Excessive Heat...This level of heat affects primarily those
individuals extremely sensitive to heat, especially when outdoors
without effective cooling and/or adequate hydration. These
conditions are most likely across the urban coastal locations.
.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across St Croix. Isolated stronger rip
currents may occur elsewhere, especially near piers, jetties, and
channels.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
An elevated excessive heat threat will continue through at least
the middle of next week across most urban coastal locations. A
wet and unstable weather pattern will increase the risk of
flooding and thunderstorms on Saturday. Expect breezy conditions
during the weekend and around the middle of next week. The
moderate risk of rip currents will prevail through much of the
forecast period.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.
$$
