Puerto Rico, 2019Debris Flow and Flooding in Puerto Rico, September 6 to 8, 2019
September 6 to 8, 2019 · NWS SJU · 7 events in 4 counties and zones
The combination of a deep-layered trough, abundant moisture in combination with strong daytime heating and local effects resulted in rounds of heavy showers and thunderstorms across different portions of Puerto Rico during the afternoon hours between September 6th and September 8th.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 7
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 combination of a deep-layered trough, abundant moisture in combination with strong daytime heating and local effects resulted in rounds of heavy showers and thunderstorms across different portions of Puerto Rico during the afternoon hours between September 6th and September 8th.
What forecasters said that day
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 Sep 6, 11:42 AM AST, 1 hour 19 minutes earlier.
Area forecast discussion, Sep 6, 11:42 AM AST, 1 hour 19 minutes before
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</html>Hazardous weather outlook, Sep 6, 7:21 AM AST, 5 hours 40 minutes before
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</html>Flood, Lares
- When
- September 6, 1:01 PM AST to 4:15 PM AST
- Where
- Lares County, 2.12 mi NNW of Lares to 2.07 mi NNW of Lares
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.300, -66.878
Flooding reported along Residencial Francisco Sein across from the Fire Station.
Flood, Carolina
- When
- September 6, 3:49 PM AST to 5:30 PM AST
- Where
- Carolina County, 4.19 mi NW of Carolina to 4.18 mi NW of Carolina
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.415, -65.993
Flooding reported along Avenida El Comandante passing el Selecto Supermarket.
Flood, Bayamon
- When
- September 6, 4:16 PM AST to 5:30 PM AST
- Where
- Bayamon County, 3.5 mi NNE of Bayamon to 3.48 mi NNE of Bayamon
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.394, -66.143
Flooding reported along Avenida Main near Laboratorio Clinico Caribbean across from the Walgreens.
Flood, Bayamon
- When
- September 6, 4:27 PM AST to 5:30 PM AST
- Where
- Bayamon County, 4.82 mi N of Bayamon to 4.79 mi N of Bayamon
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.420, -66.167
Flooding reported along Calle Rio Bayamon.
Flood, Toa Baja
- When
- September 6, 4:27 PM AST to 5:30 PM AST
- Where
- Toa Baja County, 1.45 mi ENE of Toa Baja to 1.55 mi E of Toa Baja
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.435, -66.178
Flooding reported along Calle Aurelio Due o in the 7th section of Levittown.
Flood, Bayamon
- When
- September 6, 4:35 PM AST to 5:30 PM AST
- Where
- Bayamon County, 4.16 mi NNE of Bayamon to 4.14 mi NNE of Bayamon
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.403, -66.140
Flooding reported along Calle Zaragoza in the Urbanization of Villa Espa a.
Debris Flow, Bayamon
- When
- September 8, 4:20 PM AST
- Where
- Bayamon County, 1.8 mi SW of Bayamon to 1.76 mi SW of Bayamon
- Cause
- Heavy Rain
- Reported by
- Social Media
- Coordinates
- 18.330, -66.187
Mudslide at Barrio Buena Vista PR-829 KM 5.1 in Bayamon.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- Debris Flow
- A fast-moving slurry of mud, rock and debris, usually on a slope soaked by heavy rain or stripped by a fire.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Excessive Heat and Heat in Arizona, September 6 to 9, 20197 deaths · 17 events
- Flash Flooding and Hail in Colorado, September 6, 2019$155,000 · 1 in hail · 3 events
- Tornado and Hail in Colorado, September 6, 2019$50,000 · EF0 · 8 events
- Flash Flooding and Heavy Rain in North Carolina, September 6 to 7, 201919 events
- Tropical Storm and Flood in Massachusetts, September 6 to 7, 2019$5,000 · 55 kt wind · 17 events
- Damaging Winds and Heavy Rain in Montana, September 6 to 9, 201962 kt wind · 11 events
- Lightning Strike in Washington, September 6, 20191 injured · 1 event
- Heavy Rain in Virginia, September 6 to 7, 20199 events
- Coastal Flood in Virginia, September 6, 20197 events
- Coastal Flood in North Carolina, September 6, 20196 events
- Damaging Winds in Wyoming, September 6, 201970 kt wind · 6 events
- Damaging Winds in Idaho, September 6, 201956 kt wind · 2 events
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 2026-09-24. Each event’s entry at NCEI: 856268, 856269, 856270, 856271, 856272, 856274, 856282.