Dean became tropical depression four on the morning of August 13th when it was about 2000 miles east of the Lesser Antilles. On August 14th the depression increased its strength and was upgraded to Tropical Storm Dean when it was located about 1490 miles east of the Lesser Antilles. The storm continued to intensify and on August 16th at 5 am was upgraded to hurricane status, with maximum winds of 75 mph. Then it was located about 590 miles east of Martinique. At 5 pm on August 16th, a tropical storm watch was issued for Puerto Rico and the U.S Virgin Islands, at 11 pm, the tropical storm watch for Puerto Rico and the U.S. Virgin Islands was upgraded to a  tropical storm warning. Dean continued to intensify during Friday August 17th,and by 2 am Saturday August 18th, its maximum sustained winds had increased to near 150 mph. It maintained its westward track through Saturday morning, when at 11 am the  tropical storm warning for the U.S. Virgin Islands and Puerto Rico was discontinued. Most of local effects associated with the passage of Hurricane Dean south of the U.S. Virgin Islands and Puerto Rico were in association with the extreme outer rain bands along the northern part of the hurricane and the extensive radius of sustained tropical storm force winds. Sustained tropical storm-force winds likely occurred over most of the Saint Croix and Puerto Rico near shore waters. Although no sustained tropical storm force winds were officially observed in any of the sensors at the airports in Saint Croix and Puerto Rico, tropical storm force winds gusts were observed. Very likely the higher elevations of Saint Croix and Puerto Rico experienced sustained tropical storm force winds. The maximum ASOS-measured peak wind gusts included 46 mph at the Saint Croix airport, 41 mph at the Saint Thomas Airport, 44 mph at Ceiba Airport, and 36 mph at the Carolina airport. Other unofficial wind gust measurements included 59 mph at the NOAA Crews Salt River Bay Station in Saint Croix, 58 mph at Hess Oil Refinery, and 46 mph at the NOAA Crews Station at La Parguera, in Lajas. Mostly beach erosion and some coastal flooding incidents were observed along the southeast, south and southwest coast of Puerto Rico. Friday night several coastal roads were flooded in Punta Santiago, Humacao and between Santa Isabel and Salinas. Some coastal residents were evacuated from their homes at Playita Cortada in Santa Isabel. On Saturday afternoon a coastal segment of Highway 2 at Las Cucharas in Ponce was closed to traffic. The Santa Isabel pier at El Malecon was destroyed by the rough seas, in Guanica, the coastal community of San Jacinto community Power outages were registered in many sectors due to the winds loosening cables or tree limbs downing power lines.

High Surf in PONCE AND VICINITY, PUERTO RICO
From 17-AUG-07 23:30:00 to 18-AUG-07 00:30:00 (AST-4)
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Storm swells flooded road 1 at Los Ochenta sector, from Salinas municipality to Santa Isabel.

High Surf in SOUTHWEST, PUERTO RICO
From 18-AUG-07 10:00:00 to 18-AUG-07 10:00:00 (AST-4)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A small craft broke loose from its mooring at the San Jacinto pier in Guanica, crashed against the pier and causing damage.

Tropical Storm in SOUTHWEST, PUERTO RICO
From 18-AUG-07 10:00:00 to 18-AUG-07 10:00:00 (AST-4)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical storm force wind gusts downed trees in the Guayama municipality.

High Surf in SOUTHEAST, PUERTO RICO
From 17-AUG-07 23:30:00 to 18-AUG-07 00:30:00 (AST-4)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Along road 901 in Yabucoa, Puente del Indio sector a coastal home was evacuated due to onshore flow and storm swells washing ashore.