Puerto Rico, 2006

Heavy Rain in Puerto Rico, December 6, 2006

December 6, 2006 · NWS SJU · 1 event in 1 county or zone

Scattered showers and isolated thunderstorms with very heavy rain developed during the afternoon across the northwest section of Puerto Rico, mainly from the municipalities of Anasco to San Sebastian and Isabela and from Aguada to Aguadilla. The heaviest rains occurred in San Sebastian and Moca.

Where it happened

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  • 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
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.

Scattered showers and isolated thunderstorms with very heavy rain developed during the afternoon across the northwest section of Puerto Rico, mainly from the municipalities of Anasco to San Sebastian and Isabela and from Aguada to Aguadilla. The heaviest rains occurred in San Sebastian and Moca. By mid to late afternoon moderate showers and isolated thunderstorms were still affecting the municipality of San Sebastian. An NWS spotter from San Sebastian reported around 4 inches from 1430-1700 AST. The USGS river level sensor at Culebrinas in Moca indicated that the water levels were above flood stage during the early evening, while the USGS sensor at the Margarita Dam indicated the water level was gradually increasing. According to NWS spotter at Coloso Valley the river level rose along the flood control channels, flooding around 400 acres in the lower Coloso Valley.

The radar

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

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Event by event

1 heavy rain. Local standard time, as filed.

Heavy Rain, Northwest

When
December 6, 2:40 PM AST to 4:30 PM AST
Where
Northwest County, Aguadilla
Reported by
Other Federal Agency
Coordinates
18.470, -67.120

Scattered showers and isolated thunderstorms developed across the west and northwest section of Puerto Rico during the afternoon and produced periods of heavy rain that fed into the Culebrinas river basin. From 2030 LST through 0015 LST on December 7 the USGS river level sensor at Margarita Dam in Aguadilla indicated water levels at 14.97 feet. Flood stage is 14 feet.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

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, December 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 2026-09-30. Each event’s entry at NCEI: 5667.