Flood, San Juan
- When
- November 21, 3:35 PM AST to 11:30 PM AST
- Where
- San Juan County, 3.45 mi NW of San Juan
- Cause
- Heavy Rain
- Reported by
- 911 Call Center
- Coordinates
- 18.420, -66.081
Flooding reported at calle 18 in Urbanization Puerto Nuevo.
Flood in Puerto Rico, November 21, 2016
Moist and unstable weather pattern continued across the local region as a broad trough aloft along with low level moisture prevailed across the northeastern Caribbean. A flash flood watch was in effect.
Where it happened
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS SJU wrote it up.
Moist and unstable weather pattern continued across the local region as a broad trough aloft along with low level moisture prevailed across the northeastern Caribbean. A flash flood watch was in effect.
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 Nov 21, 1:49 PM AST, 1 hour 46 minutes earlier.
Area forecast discussion, Nov 21, 1:49 PM AST, 1 hour 46 minutes before
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</html>Hazardous weather outlook, Nov 21, 5:08 AM AST, 10 hours 27 minutes before
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</html>The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in Puerto Rico in 2016Every state in 2016This day in weather historyWarnings in Puerto Rico, November 2016
Sources
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: 667058.