Headline:
Flood Advisory issued September 1 at 12:59AM AST until September 1 at 4:00AM AST by NWS San Juan PR
Event:
Flood Advisory
Urgency:
Expected
Effective:
August 31, 2026 - 9:59pm
Expires:
September 1, 2026 - 1:00am
Description:
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Caguas, Cayey, Cidra, San Lorenzo...
* WHEN...Until 400 AM AST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings.
* ADDITIONAL DETAILS...
- At 1258 AM AST, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
Between 1 and 1.5 inches of rain have fallen.
- Additional rainfall amounts of 1 to 2 inches are expected over
the area. This additional rain will result in minor flooding.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Area Description:
Caguas, PR; Cayey, PR; Cidra, PR; San Lorenzo, PR
Forcast Office:
NWS San Juan PR
Sender:
w-nws.webmaster@noaa.gov