NWS San Juan PRFW.W 0005August 15, 2026
Red Flag Warning: Southeast Coastal Plains, Southern Hills, Vieques and 1 more, PR
The National Weather Service office in San Juan issued a red flag warning for Southeast Coastal Plains, Southern Hills, Vieques and 1 more in Puerto Rico, which was in force until 5:00 p.m. local time on August 15. It was the 5th red flag warning the NWS office in San Juan issued in 2026. Puerto Rico had 1 red flag warning in August 2026, against 0 in an average August of 2008-2025 (Puerto Rico's red flag warnings by year).
ExpiredWarning
In force for 2 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, San Juan PR
- Area
- Southeast Coastal Plains, Southern Hills, Vieques and 1 more
- State
- Puerto Rico
- Level
- Warning
- Issued
- 2:41 p.m. EDT, August 15, 2026
- In force from
- 3:00 p.m. EDT, August 15, 2026
- Expires
- 5:00 p.m. EDT, August 15, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- TJSJ FW.W 0005
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
...RED FLAG WARNING IN EFFECT FOR PORTIONS OF SOUTHERN PUERTO RICO AND VIEQUES... The National Weather Service in San Juan has issued a Red Flag Warning, which is in effect until 5 PM AST this afternoon. * AFFECTED AREA...The coastal plains and hills of southern Puerto Rico and Vieques. * WINDS...East 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Relative humidity values from the mid 40 to low 50s.
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.