Tracking generally west-northwestward , Ophelia was upgraded Cause_to_make_progress to a tropical storm Catastrophe on September 21 , and reached Arriving an initial peak of 65 mph ( 100 km/h ) on September 22 .

It moved Motion quickly west-northwestward , strengthening Cause_change_of_strength into a hurricane by August 4 .

Initially continuing northwestward , Bill re-curved Self_motion west-northwestward later on June 16 .

Initially a tropical storm Catastrophe , it moved Motion west-northwestward and intensified Cause_change_of_strength into a Category 1 hurricane on the modern day Saffir–Simpson hurricane wind scale by August 19 .

While heading west-northwestward , Fran steadily strengthened Cause_change_of_strength into a hurricane on August 29 , but weakened Cause_change_of_strength back to a tropical storm Catastrophe on the following day .

It moved Motion west-northwestward and strengthened Cause_change_of_strength into a tropical storm Catastrophe on the following day .

Originating Creating near Antigua on 3 September , it initially drifted Motion west-northwestward , soon nearing Self_motion Puerto Rico .

Thereafter , the hurricane Catastrophe curved Motion_directional slightly west-northwestward and continued intensifying Cause_change_of_strength .

Tracking west-northwestward , the depression intensified Cause_change_of_strength into a tropical storm over the central Philippines before entering Arriving the South China Sea .

Fifi is also the first billion-dollar hurricane Catastrophe not to make landfall in the U.S. , Originating Coming_to_be from a strong tropical wave on September 14 , the system steadily tracked Self_motion west-northwestward through the eastern Caribbean .

Forming Coming_to_be on August 18 off the west coast of Africa , Able moved Motion generally west- to west-northwestward for much of its duration .

It moved Motion west-northwestward under the influence Influence of the subtropical ridge to its north , and steadily strengthened Cause_change_of_strength in an area of warm water temperatures and light wind shear .

Steadily strengthening Cause_change_of_strength as it tracked Self_motion west-northwestward , the tropical storm Catastrophe reached Arriving hurricane intensity the next day .

Diane initially moved Motion west-northwestward with little change Change in its intensity , but began Process_start to strengthen Cause_change_of_strength rapidly after turning Becoming to the north-northeast .

By late on July 30 , Damrey began Process_start to accelerate Cause_change_of_position_on_a_scale west-northwestward .

Tracking generally west-northwestward , the disturbance was initially disorganized ; under favorable atmospheric conditions , shower and thunderstorm activity began Process_start to consolidate Cause_change_of_strength around a low-pressure center .

It developed Coming_to_be from a tropical wave on September 3 and moved Motion west-northwestward across the tropical Atlantic Ocean , steadily intensifying Cause_change_of_strength until it attained Getting hurricane Catastrophe status on September 4 , becoming Becoming the fifth named storm Catastrophe and third hurricane Catastrophe of the season .

The tropical storm moved Motion rapidly west-northwestward , steadily intensifying to a hurricane .

It then moved Motion west-northwestward and remained at the same intensity for the next 24 hours .

Initially a tropical depression , it headed Motion west-northwestward and failed Earnings_and_losses to strengthen Cause_change_of_strength significantly .

Moving Motion briskly west-northwestward , the storm Catastrophe became Becoming a major hurricane Catastrophe on September 13 .

Originating Coming_to_be from a tropical disturbance near Palau on June 4 , Dot tracked Self_motion west-northwestward towards the Philippines .

The system moved Motion west-northwestward and struck Attack Davao Oriental in Mindanao on November 12 , bringing heavy rainfall that killed two people and disrupted relief efforts following Haiyan .

The seventh named Name_conferral storm of the 1978 Atlantic hurricane season , Greta formed Coming_to_be from a tropical wave just northwest of Trinidad on September 13 , and despite being in a climatologically unfavorable area , gradually intensified Cause_change_of_strength while moving Motion west-northwestward .

Already a tropical storm Catastrophe upon initial observations , the cyclone Catastrophe curved Motion_directional west-northwestward and intensified Cause_change_of_strength , becoming Becoming a hurricane Catastrophe on August 25 .

Once clear of the islands , data on the storm Catastrophe became Becoming sparse , and the status of Debbie was uncertain over the following several days as it tracked Self_motion west-northwestward and later northward .

Tracking steadily west-northwestward , it slowly intensified Cause_change_of_strength due to only marginally favorable conditions .