Puerto Rico, 2006

Flash Flooding and Heavy Rain in Puerto Rico, November 26 to 27, 2006

November 26 to 27, 2006 · NWS SJU · 4 events in 3 counties and zones

A weak disturbance in the low level wind flow passed south of Puerto Rico and interacted with an approaching upper trough and an old frontal boundary. Showers and a few thunderstorms developed during the evening and caused heavy rains over the municipalities of Ciales, Arecibo, Manati, Florida, Vega Alta, Toa Alta, Dorado and Toa Baja.

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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

A weak disturbance in the low level wind flow passed south of Puerto Rico and interacted with an approaching upper trough and an old frontal boundary. Showers and a few thunderstorms developed during the evening and caused heavy rains over the municipalities of Ciales, Arecibo, Manati, Florida, Vega Alta, Toa Alta, Dorado and Toa Baja.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 heavy rain, 2 flash flood. Local standard time, as filed.

Heavy Rain, Central Interior

When
November 26, 5:00 PM AST to 6:00 PM AST
Where
Central Interior County, Morovis
Reported by
Emergency Manager
Coordinates
18.320, -66.420

Heavy rains and gusty winds were reported in La Playita sector of Morovis municipality during the late afternoon.

Heavy Rain, San Juan and Vicinity

When
November 27, 8:39 PM AST to 10:15 PM AST
Where
San Juan and Vicinity County, San Juan
Reported by
Emergency Manager
Coordinates
18.380, -66.050

Residents reported very heavy rain. The 24 hour rainfall accumulation for the Luis Munoz Marin Airport ASOS ending at 0800 LST Nov. 28 indicated 3.36 inches.

Flash Flood, San Juan and Vicinity

When
November 27, 9:10 PM AST to 11:59 PM AST
Where
San Juan and Vicinity County, Toa Baja
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.430, -66.200

Flooding was reported across La Virgencita sector in Toa Baja municipality. |

Flash Flood, North Central

When
November 27, 9:40 PM AST to 11:59 PM AST
Where
North Central County, Vega Alta
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.420, -66.330

Highway 2 was reported closed to trafic between Vega Alta and Vega Baja municipalities. Several small streams were reported overflowing their banks in Vega Alta municipality.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Puerto Rico in 2006Every state in 2006This day in weather historyWarnings in Puerto Rico, November 2006

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: 5584, 5583, 5462, 5440.