December 24th and December 25th stood out because they were the wettest days of the month which in turn evolved into the most hydrologically active period across the region. By the evening of December 24th, a Flood Watch was issued for most of Puerto Rico and the U.S. Virgin Islands as heavy rain began to envelope the area due to shower and thunderstorm development from the interaction of local effects and a low pressure center northeast of Hispaniola that was slowly drifting east northeast across the forecast area.  Maximum rainfall reports from this event ranged from 5 to 9 inches.  The two highest reports in Puerto Rico were 7.13 inches in San Lorenzo and 9.0 inches in Aibonito. The runoff from this rainfall resulted in flash flooding in Aibonito, Fajardo, Las Piedras and Naguabo. Rapid and significant rises were also noted on the Rio Fajardo, Rio Naguabo, Rio Gurabo, Rio de La Plata and the Rio Grande de Loiza and many of its tributaries.

Flash Flood in CIDRA, PUERTO RICO
From 25-DEC-09 02:28:00 to 25-DEC-09 04:46:00 (AST-4)
Location: CIDRA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

River was reported out of its banks along road 173 at Barrio Rabanal.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 02:20:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two flooded homes were reported along the Domingo Colon street in Barrio San Luis.

Flash Flood in CAYEY, PUERTO RICO
From 25-DEC-09 01:44:00 to 25-DEC-09 04:46:00 (AST-4)
Location: CAYEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along road 14 at Barrio Toita, Sector La Merced.

Flash Flood in HUMACAO, PUERTO RICO
From 25-DEC-09 01:38:00 to 25-DEC-09 03:00:00 (AST-4)
Location: HUMACAO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A car was covered by flood waters along road 929 before reaching Barrio Brazo Seco.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:50:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Baldorioty street.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:26:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Road 173, at La Plata.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 02:05:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two stranded vehicles and flooding were reported along road 717 in Barrio Pasto.

Flash Flood in CIDRA, PUERTO RICO
From 25-DEC-09 04:24:00 to 25-DEC-09 04:45:00 (AST-4)
Location: CIDRA
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along road 7729 In Barrio Toita, Filemon Sector.

Flash Flood in CAYEY, PUERTO RICO
From 25-DEC-09 02:52:00 to 25-DEC-09 04:46:00 (AST-4)
Location: CAYEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along the Malave sector at Barrio Buena Vista.

Flash Flood in GURABO, PUERTO RICO
From 25-DEC-09 02:22:00 to 25-DEC-09 03:00:00 (AST-4)
Location: GURABO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Road 189 in front of Valle de los Ensuenos was reported flooded.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 20:55:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded at Sauce street in Fajardo Gardens.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 21:04:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along El Conquistador Avenue, Monte Brisas neighborhood.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 21:12:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded at San Marcos street, San Pedro neighborhood.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 21:20:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along street 4, Baralt neighborhood.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 21:31:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Street flooding was reported along Union street.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:57:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Trinitaria street in Brisas de Aibonito.

Flash Flood in CAYEY, PUERTO RICO
From 25-DEC-09 02:13:00 to 25-DEC-09 04:46:00 (AST-4)
Location: CAYEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Matias Soto street in downtown Cayey.

Flash Flood in CAYEY, PUERTO RICO
From 25-DEC-09 02:15:00 to 25-DEC-09 04:46:00 (AST-4)
Location: CAYEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along road 14 at Barrio Maton Abajo.

Flash Flood in SAN LORENZO, PUERTO RICO
From 25-DEC-09 01:37:00 to 25-DEC-09 03:00:00 (AST-4)
Location: SAN LORENZO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded by runoff at Lirio Street in Villas de San Lorenzo.

Flash Flood in CAGUAS, PUERTO RICO
From 25-DEC-09 02:46:00 to 25-DEC-09 03:00:00 (AST-4)
Location: CAGUAS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along road 789, Las Flores sector, Tomas de Castro II in Caguas.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 02:43:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along Sardis street at Extension San Luis.

Heavy Rain in AIBONITO, PUERTO RICO
From 24-DEC-09 17:00:00 to 25-DEC-09 02:00:00 (AST-4)
Location: AIBONITO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Periods of heavy rain were reported across the municipality of Aibonito. The heavy rains led to flash flooding and landslides.

Debris Flow in EASTERN INTERIOR, PUERTO RICO
From 24-DEC-09 18:00:00 to 25-DEC-09 05:00:00 (AST-4)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Roads 173, and 14 Barrio La Plata; 162 at Barrio Cuyon; 718 at Sector Campo Bello, Barrio Pasto;  722 at Barrio Robles; 717 at Barrio Algarrobo; 723 at Pulguillas; 722 at Sector La Sierra Rabanal; 162 at Barrio Pasto and Cuyon; 716 at Barrio Cuyon; 718 Sector Playita Barrio Pasto. Most of these roads experienced landslides, and some were closed to traffic.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 02:59:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Siloe street at Barriada San Luis.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 02:59:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Mileto street at Extension San Luis.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:20:00 to 25-DEC-09 04:32:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 800.00K
Crop damage: 50.00K
Reported by: Newspaper

Heavy rains that began on Christmas evening persisted through early Christmas Day. Around 250 families were affected by the rains and floods. The worst hit area was the Aibonito town and the San Luis sector. Many homes close to the river and the town were flooded, as well as Barrios La Plata, Pasto, and Cuyon. Flood water levels rose to around 3 feet in some of the properties. USGS river gauge at Rio de la Plata at Proyecto La Plata rose above flood stage to 18.77 feet. Twenty seven persons were rescued from the flash floods.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 22:37:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along Union street, in Puerto Real.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 22:13:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along 13 street at Barrio Quebrada Vueltas.

Flash Flood in FAJARDO, PUERTO RICO
From 24-DEC-09 22:06:00 to 25-DEC-09 02:50:00 (AST-4)
Location: FAJARDO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home was reported flooded along marginal road, barrio San Isidra III.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:58:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Jerico street was reported flooded at Barriada San Luis.

Flash Flood in SAN LORENZO, PUERTO RICO
From 25-DEC-09 01:37:00 to 25-DEC-09 03:30:00 (AST-4)
Location: SAN LORENZO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A house was reported flooded at Vistas de San Lorenzo sector, Lirio Rd in the municipality of San Lorenzo.

Flash Flood in CAYEY, PUERTO RICO
From 25-DEC-09 01:44:00 to 25-DEC-09 04:32:00 (AST-4)
Location: CAYEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A house was flooded at Bo. Toita , rd 14 intersection with Rd 7729, at sector La Merced in the municipality of Cayey.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:49:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along Domingo Colon street at Barriada San Luis.

Flash Flood in AIBONITO, PUERTO RICO
From 25-DEC-09 01:47:00 to 25-DEC-09 04:46:00 (AST-4)
Location: AIBONITO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported at the end of Nazareth street in Barriada San Luis.

Flood in LOIZA, PUERTO RICO
From 25-DEC-09 05:37:00 to 25-DEC-09 11:30:00 (AST-4)
Location: LOIZA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Loiza river was reported out of its banks along road 951 at Barrio Las Cuevas. Callejon Salgado and El Ancon street were reported flooded.

Flash Flood in NAGUABO, PUERTO RICO
From 25-DEC-09 01:51:00 to 25-DEC-09 03:00:00 (AST-4)
Location: NAGUABO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Road 31 was reported flooded in Pena Pobre.

Flash Flood in JUNCOS, PUERTO RICO
From 24-DEC-09 23:12:00 to 25-DEC-09 01:00:00 (AST-4)
Location: JUNCOS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A flooded home was reported along road 935, Barrio Ceiba Norte, Marin sector.

Flash Flood in LAS PIEDRAS, PUERTO RICO
From 25-DEC-09 00:49:00 to 25-DEC-09 01:00:00 (AST-4)
Location: LAS PIEDRAS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A car was reported stranded in water in front of Olympic City.

Debris Flow in EASTERN INTERIOR, PUERTO RICO
From 25-DEC-09 05:30:00 to 25-DEC-09 05:30:00 (AST-4)
Property damage: 4800.00K
Crop damage: 0.00K
Reported by: Newspaper

A wall of mud and debris at least five feet high crashed into a home at Barrio Arenas, Los Ares sector in Las Piedras municipality, damaging all its contents, and forcing its residents to evacuate and seek shelter in a neighboring home. Twenty four fighting roosters were killed by the mudslide.