 Tropical Storm Dean was a strong tropical storm that affected at least twelve islands along its path from the tropical Atlantic Ocean to east of Atlantic Canada in August 2001 . Dean developed from a tropical wave on August 22 over the Lesser Antilles , and was initially predicted to intensify further to reach hurricane status . However , strong wind shear quickly weakened Dean to cause it to dissipate on August 23 . The remnants turned northward , and redeveloped on August 26 to the north of Bermuda . Located over warm waters and in an area of favorable conditions , Dean steadily strengthened while moving to the northeast , and peaked just below hurricane status on August 27 about 465 miles ( 750 km ) southwest of Newfoundland . The storm subsequently weakened over cooler waters , and became extratropical on August 28 . 
