Showers and thunderstorms associated with the outer bands of Hurricane Sandy were strong enough to produce moderate to major flooding across the Guayanilla and Caguas area between October 25th and October 27th. |Specifically, moderate flooding was reported on the Rio de La Plata, Rio Grande de Manati, and Rio Caonillas.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SJU wrote it up.
Showers and thunderstorms associated with the outer bands of Hurricane Sandy were strong enough to produce moderate to major flooding across the Guayanilla and Caguas area between October 25th and October 27th. Moderate and major flash flooding was reported as high intensity rainfall butted up against the Cordillera Central Mountains of Puerto Rico.|Specifically, moderate flooding was reported on the Rio de La Plata, Rio Grande de Manati, and Rio Caonillas. Major flooding was experienced in southwestern Puerto Rico especially in communities along the Rio Guayanilla and Rio Yauco where approximately 110 families had to be evacuated from their homes because of rising water. While these communities experienced devastating impacts, significant rises and flooding was also reported in many other municipalities around Puerto Rico including the municipalities along the Rio Grande de Anasco, Rio Grande de Arecibo, the upper Rio Grande de Loiza and Rio Espiritu Santo and Rio Fajardo in the northeast.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Juan, PR wrote its last area forecast discussion before the first event at Oct 25, 11:29 AM AST, 3 hours 11 minutes earlier.
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</html>The San Juan radar (TJUA), 110 km away, was scanning. The volume nearest the first event began at 18:40 UTC.
9 flash flood, 3 flood, 2 thunderstorm wind, 2 heavy rain. Local standard time, as filed.
Amateur Radio reported wind gust between 35 to 40 mph at Mayaguez City.
Several trees down were reported across Mayaguez area.
Public reported Rio Guayanilla out of its banks, entering downtown area.
Rio Yauco was reported out of its banks. Around 110 families were evacuated due to waters inside their homes.
Guanajibo River was reported out of its banks.
Rio Luchetti was reported out of its banks, flooding several streets of Luchetti urbanization.
A mudslide was reported at road PR-118.
Flooding Road PR-3 near interception with road PR-955.
Lago Dos Bocas was reported out of its banks.
Road PR-3 was reported flooded and impassable.
One person was swept away by flooding water of Rio Jacaguas.
Roads PR-765 and PR-763 were reported flooded in Barrio Macanea and another section impassable due to landslide. Section of road PR-765 below highway 52 was reported flooded as well.
Rio Toro Negro near Barrio Pozas was reported out of its banks over road PR-615.
A landslide was reported at Road PR-1 between Caguas and Cayey municipalities.
Road PR-765 was reported flooded and impassable in front of Gas Station 765.
A house was reported flooded at Road PR-171 km 8.3 in Morillo sector.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Flash Flood, Juana Diaz | 2012-10-26 | 51 | Male | Other | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2012Every state in 2012This day in weather historyWarnings in Puerto Rico, October 2012
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 417462, 417696, 411051, 417710, 417859, 417861, 417862, 417711, 417712, 417863, 411052, 417713, 417714, 417864, 417865, 417866.