Timeline of the 1987 Atlantic hurricane season

The 1987 Atlantic hurricane season was an event in the annual Atlantic hurricane season in the north Atlantic Ocean. It was a below-average season, having fewer named storms than in a normal year, that resulted in little impact throughout the Atlantic basin; the United States recorded no hurricane-related fatalities, making the 1987 season the fourth to do so since 1976. The season officially began on June 1, 1987 and ended November 30, 1987. These dates, adopted by convention, historically describe the period in each year when most systems form. Even so, a pre-season storm, Tropical Depression One, led to the season's starting on May 25. Storm activity ended several weeks early; the final storm of the season, Tropical Depression Fourteen, dissipated on November 4.

The season had fourteen tropical depressions, of which seven intensified into tropical storms&mdash;an average season has ten tropical storms &mdash;three became hurricanes and one, Emily, became a major hurricane. The inactivity throughout the basin was linked to persistent, strong vertical wind shear; most of the season's storms were unable to intensify due to the shear, resulting in a low number of named storms and hurricanes. The two most notable storms of the season were Hurricanes Arlene and Emily. Hurricane Arlene spent roughly 14.5 days as a tropical storm before intensifying into a hurricane, the longest span between these intensities on record. Hurricane Emily was the only major hurricane of the season; its wind speeds peaked at 125 mph before impacting the Dominican Republic. Three fatalities occurred in the Dominican Republic because of the storm and damages were estimated up to $80.3 million (1987 USD).

This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not initially warned upon, has been included.

By convention, meteorologists one time zone when issuing forecasts and making observations: Coordinated Universal Time (UTC), and also use the 24-hour clock (where 00:00 = midnight UTC). In this time line, all information is listed by UTC first with the respective local time included in parentheses.

May

 * May 24
 * 8:00 am EDT (1200 UTC) – Tropical Depression One forms 170 miles (275 kilometers) east-southeast of Cockburn Town, Turks and Caicos Islands.


 * May 30
 * 8:00 am EDT (1200 UTC) – Tropical Depression One makes landfall on Great Abaco Island in the northern Bahamas with winds of 35 mph.
 * 2:00 pm EDT (1800 UTC) – Tropical Depression One passes over the Berry Islands with winds of 35 mph.


 * May 31
 * 8:00 am EDT (1200 UTC) – Tropical Depression One makes its closest approach to the Florida Keys, tracking within 20 mi of Lower Matecumbe Key with winds of 30 mph.
 * 8:00 pm EDT (0000 UTC June 1) – Tropical Depression One dissipates in the Florida Strait.

June
The Atlantic hurricane season officially begins.
 * June 1

July

 * There was no tropical cyclone activity in the Atlantic basin during July 1987.

August

 * August 9
 * 7:00 am CDT (1200 UTC) – Tropical Depression Two forms about 260 mi southeast of Houston, Texas.
 * 1:00 pm CDT (1800 UTC) – Tropical Depression Two intensifies into a Tropical Storm but is not assigned a name.


 * August 10
 * 1:00 am CDT (0600 UTC) – Tropical Storm Two makes landfall near Galveston, Texas with winds of 45 mph.
 * 1:00 am CDT (0600 UTC) – Tropical Storm Two weakens into a tropical depression.


 * 2:00 pm EDT (1800 UTC) – Tropical Depression Three forms over Andros Island in The Bahamas.
 * 8:00 pm EDT (0000 UTC August 11) – Tropical Depression Three tracks over the Berry Islands with winds of 30 mph.
 * Exact time unknown – Tropical Depression Three makes landfall near Freeport on Grand Bahama Island.


 * August 11
 * 2:00 pm EDT (1800 UTC) – Tropical Depression Three intensifies into Tropical Storm Arlene roughly 255 mi northeast of Great Abaco Island in the Bahamas.


 * August 13
 * 11:00 am AST (1500 UTC) – Tropical Storm Arlene makes its closest approach to Bermuda, tracking roughly 45 mi to the north with winds of 65 mph.
 * 8:00 pm AST (0000 UTC August 14) – Tropical Depression Four forms about 840 mi (1,350 km) east-southeast of Barbados.


 * August 14
 * 8:00 pm EDT (0000 UTC August 15) – Tropical Depression Two re-emerges into the Gulf of Mexico.


 * August 15
 * 8:00 am AST (1200 UTC) – Tropical Depression Four dissipates roughly 55 mi northeast of the British Virgin Islands.
 * 2:00 pm EDT (1800 UTC) – Tropical Depression Two makes landfall in Gulf County, Florida with winds of 20 mph.


 * August 17
 * 2:00 am EDT (0600 UTC) – Tropical Depression Two dissipates over southeastern Georgia.


 * August 18
 * 2:00 am AST (0600 UTC) – Tropical Depression Five forms roughly 170 mi west of Dakar, Senegal.
 * 8:00 am AST (1200 UTC) – Tropical Depression Five tracks over the southern Cape Verde Islands with winds of 35 mph.
 * 2:00 pm AST (1800 UTC) – Tropical Depression Five strengthens into Tropical Storm Bret about 85 mi west-northwest of Brava, Cape Verde.


 * August 20
 * 2:00 am AST (0600 UTC) – Tropical Storm Bret reaches its peak intensity with winds of 50 mph while located about 710 mi (1,145 km) west-northwest of Brava, Cape Verde.


 * August 22
 * 2:00 am AST (0600 UTC) – Tropical Storm Arlene intensifies into a Category 1 hurricane on the Saffir–Simpson hurricane scale while located about 815 mi (1,310 km) southwest of the Azores Islands.
 * 8:00 am AST (1200 UTC) – Hurricane Arlene reaches its peak intensity with winds of 75 mph and a minimum barometric pressure of 987 mbar (hPa; 987 mbar).
 * 2:00 am AST (0600 UTC) – Tropical Storm Bret weakens into a tropical depression while located about 825 mi (1,330 km) northeast of Barbados.


 * August 23
 * 8:00 pm AST (0000 UTC) – The National Hurricane Center (NHC) issues their final advisory on Hurricane Arlene as it transitions into an extratropical cyclone.


 * August 24
 * 8:00 am AST (1200 UTC) – Tropical Depression Bret degenerates into a tropical wave over the central Atlantic Ocean.


 * August 30
 * 8:00 am AST (1200 UTC) – Tropical Depression Six forms roughly 515 mi west-southwest of Brava, Cape Verde.

September

 * September 2
 * 2:00 pm AST (1800 UTC) – Tropical Depression Six dissipates about 895 mi (1,440 km) west of Antigua and Barbuda.


 * September 5
 * 8:00 am AST (1200 UTC) – Tropical Depression Seven forms roughly 445 mi west of Brava, Cape Verde.
 * 8:00 pm AST (0000 UTC September 6) – Tropical Depression Eight forms around 115 mi northwest of Tobago.


 * September 6
 * 8:00 pm EDT (0000 UTC September 7) – Tropical Depression Nine forms roughly 145 mi northeast of Freeport, Bahamas.


 * September 7
 * 8:00 am AST (1200 UTC) – Tropical Depression Seven strengthens into Tropical Storm Cindy about 1,050 mi (1,690 km) northwest of the Cape Verde Islands.
 * 2:00 pm AST (1800 UTC) – Tropical Depression Eight makes landfall with winds of 35 mph near Puerto Cabezas, Nicaragua shortly before dissipating.
 * 2:00 pm EDT (0000 UTC September 8) – Tropical Depression Nine makes landfall near Myrtle Beach, South Carolina with winds of 35 mph.


 * September 8
 * 2:00 am EDT (0600 UTC) – Tropical Depression Nine dissipates over North Carolina.
 * 2:00 pm AST (1800 UTC) – Tropical Depression Ten forms about 205 mi southwest of Bissau, Guinea-Bissau.


 * September 10
 * (1200 UTC) – Tropical Depression Ten strengthens into Tropical Storm Dennis while located about 275 mi south of Brava, Cape Verde.
 * 2:00 pm AST (1800 UTC) – The last advisory on Tropical Storm Cindy is released as it becomes extratropical over the northern Atlantic.


 * September 13
 * 8:00 am AST (1200 UTC) – Tropical Depression Eleven forms near 375 mi northeast of Barbados.


 * September 17
 * 8:00 am AST (1200 UTC) – Tropical Depression Eleven dissipates about 280 mi northeast of San Juan, Puerto Rico.


 * September 18
 * 2:00 pm AST (1800 UTC) – Tropical Storm Dennis weakens into a tropical depression while located around 660 mi (1,060 km) northeast of Barbados.


 * September 19
 * 8:00 pm AST (0000 UTC September 20) – Tropical Depression Twelve forms roughly 605 mi southeast of Barbados.


 * September 20
 * 2:00 pm AST (1800 UTC) – Tropical Depression Dennis transitions into an extratropical cyclone over the central Atlantic.
 * 2:00 pm AST (1800 UTC) – Tropical Depression Twelve strengthens into Tropical Storm Emily while located about 245 mi southeast of Barbados.


 * September 21
 * 8:00 am AST (1200 UTC) – Tropical Storm Emily makes landfall in St. Vincent with winds of 50 mph.


 * September 22
 * 2:00 am AST (0600 UTC) – Tropical Storm Emily intensifies into a Category 1 hurricane.
 * 8:00 am AST (1200 UTC) – Hurricane Emily intensifies into a Category 2 hurricane.
 * 2:00 pm AST (1800 UTC) – Hurricane Emily reaches its peak intensity with winds of 125 mph as it intensifies into a Category 3 hurricane.
 * 11:00 pm AST (0300 UTC) – Hurricane Emily weakens to a Category 2 hurricane and makes landfall near Barahona, Dominican Republic with winds of 110 mph.


 * September 23
 * 2:00 am AST (0600 UTC) – Hurricane Emily weakens into a Category 1 hurricane.
 * 8:00 am AST (1200 UTC) – Hurricane Emily weakens into a tropical storm.


 * September 25
 * 2:00 am AST (0600 UTC) – Tropical Storm Emily re-intensifies into a hurricane while located about 235 mi southwest of Bermuda.
 * 7:45 am AST (1145 UTC) – Hurricane Emily makes landfall in Bermuda with winds of 85 mph.


 * September 26
 * 2:00 pm AST (1800 UTC) – Hurricane Emily transitions into an extratropical cyclone over the northeastern Atlantic.

October

 * October 9
 * 2:00 am EDT (0600 UTC) – Tropical Depression Thirteen forms roughly 85 mi northeast of Puerto Cabezas, Nicaragua.


 * October 10
 * 8:00 pm EDT (1200 UTC) – Tropical Depression Thirteen strengthens into Tropical Storm Floyd while located about 230 mi south-southwest of Grand Cayman Island.
 * October 11
 * 8:00 pm EDT (0000 UTC October 12) – Tropical Storm Floyd makes landfall in western Cuba near Guane.


 * October 12
 * 8:00 am EDT (1200 UTC) – Tropical Storm Floyd intensifies into a Category 1 hurricane as it reaches its peak windspeeds of 75 mph.
 * 2:00 pm EDT (1800 UTC) – Hurricane Floyd tracks over the Florida Keys with winds of 75 mph.
 * 8:00 pm EDT (0000 UTC) – Hurricane Floyd weakens into a tropical storm.


 * October 13
 * 2:00 pm EDT (1800 UTC) –Tropical Storm Floyd transitions into an extratropical cyclone to the northeast of the Bahamas.


 * October 31
 * 2:00 pm EDT (1800 UTC) – Tropical Depression Fourteen forms roughly 110 mi south-southeast of Kingston, Jamaica.

November

 * November 2
 * 8:00 pm EDT (0000 UTC November 3) – Tropical Depression Fourteen makes landfall in southern Matanzas Province, Cuba with winds of 35 mph.
 * Exact time unknown – Tropical Depression Fourteen makes landfall in southern La Habana Province, Cuba with winds of 35 mph.


 * November 4
 * 8:00 am EDT (1200 UTC) – Tropical Depression Fourteen makes landfall near Tampa, Florida.
 * 2:00 pm EDT (1800 UTC) – Tropical Depression Fourteen dissipates over Florida.


 * November 30
 * The Atlantic hurricane season officially ends.