The combination of high moisture content, very light steering flow from the north and northeast, and local and diurnal effects resulted in heavy shower and thunderstorm activity across southern PR.
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.
The combination of high moisture content, very light steering flow from the north and northeast, and local and diurnal effects resulted in heavy shower and thunderstorm activity across southern PR.
The San Juan radar (TJUA), 101 km away, was scanning. The volume nearest the first event began at 17:08 UTC.
3 flood, 1 flash flood. Local standard time, as filed.
A house was flooded at Calle Bosque.
Rio Descalabrado went out of its banks, flooding Road PR-1.
Rio Duey went out of its banks by Barrio Diego Hernandez, flooding the bridge along Road PR-372 KM 2.
Rio Duey went out of its banks by Barrio Diego Hernandez, flooding the bridge along Road PR-372.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2021Every state in 2021This day in weather historyWarnings in Puerto Rico, October 2021
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: 988231, 988232, 988233, 988250.