A mid to upper level trough remained over the region developing into an upper level low north of the region. Scattered to numerous showers developed over the area, affecting mainly the eastern interior and southeast sections of Puerto Rico.
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.
A mid to upper level trough remained over the region developing into an upper level low north of the region. Scattered to numerous showers developed over the area, affecting mainly the eastern interior and southeast sections of Puerto Rico. These showers and thunderstorms produced torrential rainfall which led to numerous flash flooding across these areas. This event aid in the hydrological drought which started in May 2015 lasting through the end of October. Rationing of water was ended in Carraizo and La Plata Basins due to this rainy event.
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 24, 11:05 AM AST, 3 hours 25 minutes earlier.
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</html>The San Juan radar (TJUA), 29 km away, was scanning. The volume nearest the first event began at 18:27 UTC.
14 flash flood, 3 heavy rain, 1 hail, 1 flood. Local standard time, as filed.
Pea size hail reported at Villa Universitaria in Humacao. Thunderstorm, heavy rain and strong winds also reported.
Bairoa avenue near Bairoa shopping center was reported impassable.
Street 49 at Urb. Masso was reported flooded.
Valle Tolima, street Mirna Vazquez flooded.
All lanes of PR-1 from Caguas to Aguas Buenas were reported flooded.
PR-795 at Barrio La Barra flooded.
PR-156 at Urb. Parque del Monte was reported flooded.
Urb. Villa Blanca, Garrido and Opalo roads flooded.
Flooded houses with car stranded in water were reported in urbanization San Jose.
Urb. Bella Vista in Aibonito, houses were reported flooded with car stranded.
USGS river gauges indicated Rio La Plata at Comerio went out of its banks. River crested at 14.97 feet. Flood stage is 11 feet. In addition public reported the river out of its banks near rural areas in Comerio.
Flooding reported at PR-1 in Barrio Rio Ca as in front of Total gas station. The road was impassable.
Several homes were flooded in some areas of Urb Vista San Lorenzo, Urb. San Lorenzo Valley, Barrio Jagual and Barrio Quemado.
Mudslides were reported in Barrio Jagual and Barrio Quemado.
A few houses were flooded in Barrio Montones. Mudslides were also reported at Road Pr-917 sector Santana and sector La Reina Delgado.
Rio Valenciano Went out of its banks affecting portions of Raod PR-31. In addition, a mudslide was reported at Barriada Morales.
River gauge CAGP4 indicated Rio Grande De Loiza in the border between Caguas and Gurabo went out of its banks. River Crested at 17.64 feet. Flood Stage is 16 feet.
River gage VAMP4 measured 4.15 inches in 3 hours.
Rain gage SLKP4 measured 5.19 inches in 3 hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2015Every state in 2015This day in weather historyWarnings in Puerto Rico, October 2015
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: 605547, 605551, 605680, 605549, 605550, 605552, 605553, 605554, 605716, 605718, 605719, 605720, 605721, 605722, 605723, 605725, 605731, 605733, 605734.