page_title: Timeline of the 1999 Atlantic hurricane season
section_title: August
hierarchical_section_title: Timeline of the 1999 Atlantic hurricane season / Timeline / August
caption_attribution_description: English: Track map of Hurricane Dennis of the 1999 Atlantic hurricane season. The points show the location of the storm at 6-hour intervals. The colour represents the storm's maximum sustained wind speeds as classified in the Saffir–Simpson scale (see below), and the shape of the data points represent the nature of the storm, according to the legend below. Saffir–Simpson scale Tropical depression≤38 mph≤62 km/h Category 3111–129 mph178–208 km/h Tropical storm39–73 mph63–118 km/h Category 4130–156 mph209–251 km/h Category 174–95 mph119–153 km/h Category 5≥157 mph≥252 km/h Category 296–110 mph154–177 km/h Unknown Storm type Tropical cyclone Subtropical cyclone Extratropical cyclone / Remnant low / Tropical disturbance / Monsoon depression
context_page_description: The 1999 Atlantic hurricane season was an event in the annual tropical cyclone season in the north Atlantic Ocean. This Atlantic hurricane season saw a near-average number of named tropical storms, though five of them became dangerous hurricanes of Category 4 intensity on the 5-level Saffir–Simpson scale, the most in a single season since 1886. The season officially began on June 1, 1999 and ended on November 30, 1999. These dates, adopted by convention, historically describe the period in each year when most tropical systems form. This season's first storm, Tropical Storm Arlene, formed on June 11, while the last, Hurricane Lenny, dissipated on November 23.
  Altogether, 12 tropical storms formed during the season, including eight hurricanes of which five intensified into major hurricanes. There were also four tropical depressions that did not reach tropical storm strength. The most significant hurricane of the season was Hurricane Floyd, which caused devastating flooding along the East Coast of the United States, especially in North Carolina, which had been hit only ten days earlier by Hurricane Dennis.
context_section_description: August 18
  18:00 UTC (1:00 p.m. CDT) – Tropical Depression Three forms in the Bay of Campeche.
  August 19
  00:00 UTC (8:00 p.m. AST, August 18) – Tropical Depression Four forms about 250 nautical miles (460 km; 290 mi) 155 miles (250 km) east-southeast of the Cape Verde Islands.
  18:00 UTC (1:00 p.m. CDT) – Tropical Depression Three strengthens into Tropical Storm Bret southeast of Tampico, Tamaulipas.
  August 20
  1:00 pm EDT (1800 UTC) - Tropical Depression Four strengthens into Tropical Storm Cindy.
  August 21
  00:00 UTC (7:00 p.m. CDT, August 20) – Tropical Storm Bret reaches hurricane strength about 225 miles (362 km) east of Tampico.
  18:00 UTC (1:00 p.m. CDT) – Hurricane Bret strengthens to a Category 2 hurricane.
  23:00 UTC (6:00 p.m. CDT) – Hurricane Bret strengthens to a Category 3 hurricane about 175 miles (282 km) southeast of Brownsville, Texas.
  August 22
  00:00 UTC (7:00 p.m. CDT, August 21) – Hurricane Bret rapidly strengthens to a Category 4 hurricane.
  00:00 UTC (8:00 p.m. AST, August 21) – Tropical Storm Cindy reaches hurricane strength about 450 mi (720 km) west of the Cape Verde Islands.
  12:00 UTC (7:00 a.m. CDT) – Hurricane Bret attains its peak intensity with winds of 145 mph (230 km/h) and a minimum pressure of 944 mbar (hPa; 27.88 inHg).
  18:00 UTC (1:00 p.m. AST) – Hurricane Cindy weakens to a tropical storm.
  August 23
  00:00 UTC (7:00 p.m. CDT, August 22) – Hurricane Bret makes landfall on central Padre Island, Texas as a Category 3 hurricane with winds of 115 mph (185 km/h).
  13:00 UTC (8:00 a.m. CDT) – Hurricane Bret weakens to a tropical storm about 40 mi (65 km) south-southwest of Alice, Texas.
  August 24
  00:00 UTC (7:00 p.m. CDT, August 23) – Tropical Storm Bret weakens to a tropical depression north of Laredo, Texas and later dissipates in the mountains of northern Mexico.
  00:00 UTC (8:00 p.m. AST, August 23) – Tropical Depression Five forms about 220 mi (350 km) east of Turks Island.
  06:00 UTC (2:00 a.m. AST) – Tropical Depression Five strengthens into Tropical Storm Dennis east of Turks Island.
  06:00 UTC (2:00 a.m. AST) – Tropical Depression Six forms about 410 mi (670 km) east of the southern Windward Islands.
  12:00 UTC (8:00 a.m. AST) – Tropical Depression Six strengthens into Tropical Storm Emily.
  18:00 UTC (2:00 p.m. AST) – Tropical Storm Emily attains its peak intensity east of the Windward Islands with winds of 50 mph (85 km/h) and a minimum pressure of 1004 mbar (hPa; 29.65 inHg).
  August 26
  00:00 UTC (8:00 p.m. AST, August 25) – Tropical Storm Cindy re-strengthens into a hurricane about 1,300 mi (2,000 km) southeast of Bermuda.
  06:00 UTC (2:00 a.m. AM AST) – Tropical Storm Dennis strengthens to hurricane strength about 290 mi (465 km) east-southeast of Nassau, Bahamas.
  August 27
  12:00 UTC (8:00 a.m. AST) – Hurricane Cindy strengthens to a Category 2 hurricane east-southeast of Bermuda.
  August 28
  00:00 UTC (8:00 p.m. AST, August 27) – Hurricane Cindy strengthens to a Category 3 hurricane.
  06:00 UTC (2:00 a.m. AST) – Hurricane Cindy strengthens to a category 4 hurricane.
  07:00 UTC (3:00 a.m. EDT) – Hurricane Dennis moves through the Abaco Islands in the Bahamas with winds of 85 mph (140 km/h) and makes landfall on some on the islands.
  12:00 UTC (8:00 a.m. AST) – Hurricane Cindy attains its peak intensity east-southeast of Bermuda with winds of 140 mph (220 km/h) and a minimum pressure of 942 mbar (hPa; 27.82 inHg).
  12:00 UTC (8:00 a.m. EDT – Hurricane Dennis strengthens to a Category 2 hurricane about 25 mi (40 km) northeast of Great Abaco Island.
  12:00 UTC (8:00 a.m. AST) – Tropical Storm Emily weakens to a tropical depression 770 mi (1,240 km) southeast of Bermuda, and is later absorbed by the much larger circulation of Hurricane Cindy.
  August 29
  12:00 UTC (8:00 a.m. AST) – Hurricane Cindy weakens to a Category 3 hurricane east of Bermuda.
  18:00 UTC (2:00 p.m. AST) – Hurricane Cindy weakens to a Category 2 hurricane east of Bermuda.
  August 30
  06:00 UTC (2:00 a.m. EDT) – Hurricane Dennis attains its peak intensity about 115 mi (185 km) south of Wilmington, North Carolina with winds of 105 mph (165 
caption: The erratic storm path of Hurricane Dennis
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