page_title: Timeline of the 1990 Atlantic hurricane season
section_title: August
hierarchical_section_title: Timeline of the 1990 Atlantic hurricane season / Timeline of storms / August
caption_attribution_description: Image of Hurricane Gustav of the 1990 Atlantic hurricane season on 30 August 1990
context_page_description: The 1990 Atlantic hurricane season featured the most named storms of any hurricane season at the time. During the season, 14 tropical cyclones in the Atlantic Ocean became named storms. Although Tropical Depression One formed on May 24, the season officially began on June 1; it ended on November 30, dates that conventionally delimit the period of each year when most tropical cyclones develop in the Atlantic basin. The season's final storm, Hurricane Nana, dissipated on October 21.
  The season produced 16 tropical depressions, of which 14 intensified into tropical storms, 8 became hurricanes, and 1 became a major hurricane. Although the season had the highest number of named storms at the time, it featured only two notable storms, primarily because many of the tropical cyclones remained either weak or at sea. The two most significant storms of the season, in terms of damage and loss of life, were Hurricane Diana and Tropical Storm Marco. However, the strongest tropical cyclone of the season was Hurricane Gustav.
context_section_description: August 2
  0000 UTC (8:00 p.m. EDT August 2) – Hurricane Bertha attains its peak intensity with winds of 80 mph (130 km/h) and a minimum barometric pressure of 973 mbar (hPa; 28.73 inHg).
  0000 UTC (8:00 p.m. EDT August 2) – Tropical Depression Four intensifies into Tropical Storm Cesar.
  0600 UTC (2:00 a.m. EDT) – Hurricane Bertha weakens to a tropical storm while making landfall near Sydney, Nova Scotia, with winds of 70 mph (115 km/h). Simultaneously, Tropical Storm Bertha transitions into an extratropical storm.
  1200 UTC (8:00 a.m. EDT) – Tropical Storm Cesar attains its peak intensity with winds of 50 mph (85 km/h) and a minimum barometric pressure of 1000 mbar (hPa; 29.53 inHg).
  1800 UTC (2:00 p.m. EDT) – A second subtropical depression develops in the vicinity of the Azores.
  August 3
  1200 UTC (8:00 a.m. EDT) – The second subtropical depression intensifies into a subtropical storm.
  August 4
  0000 UTC (8:00 p.m. EDT August 3) – Tropical Depression Five develops in the southwestern Caribbean Sea.
  1800 UTC (2:00 p.m. EDT) – The subtropical storm weakens to a subtropical depression.
  August 5
  0000 UTC (8:00 p.m. EDT August 4) – Tropical Depression Five intensifies into Tropical Storm Diana.
  2000 UTC (3:00 p.m. CDT) – Tropical Storm Diana makes landfall near Felipe Carrillo Puerto, Quintana Roo, on the Yucatan Peninsula with winds of 65 mph (100 km/h).
  August 6
  1200 UTC (8:00 a.m. EDT) – Tropical Storm Cesar weakens to a tropical depression.
  1800 UTC (2:00 p.m. EDT) – The subtropical depression acquires tropical characteristics and is reclassified as Tropical Depression Six.
  August 7
  0600 UTC (2:00 a.m. EDT) – Tropical Storm Diana intensifies into a Category 1 hurricane after emerging into the Bay of Campeche.
  1800 UTC (2:00 p.m. EDT) – Tropical Depression Cesar dissipates roughly 1,150 miles (1,850 km) east of Bermuda.
  1800 UTC (1:00 p.m. CDT) – Hurricane Diana intensifies into a Category 2 hurricane. Simultaneously, the storm attains its peak intensity with winds of 100 mph (165 km/h) and a minimum barometric pressure of 980 mbar (hPa; 28.94 inHg).
  1900 UTC (2:00 p.m. CDT) – Hurricane Diana makes landfall near Tuxpan, Veracruz, Mexico, with winds of 100 mph (165 km/h).
  August 8
  0000 UTC (7:00 p.m. CDT August 7) – Hurricane Diana rapidly weakens to a tropical storm.
  1200 UTC (7:00 a.m. CDT) – Tropical Storm Diana weakens to a tropical depression.
  1800 UTC (2:00 p.m. EDT) – Tropical Depression Six intensifies into Tropical Storm Edouard.
  August 9
  0600 UTC (2:00 a.m. EDT) – Tropical Storm Edouard attains its peak intensity with winds of 45 mph (75 km/h) and a minimum barometric pressure of 1003 mbar (hPa; 29.62 inHg).
  1800 UTC (12:00 p.m. MDT) – Tropical Depression Diana dissipates after emerging into the Gulf of California.
  August 10
  1200 UTC (8:00 a.m. EDT) – Tropical Storm Edouard weakens to a tropical depression.
  August 11
  1200 UTC (8:00 a.m. EDT) – Tropical Depression Edouard transitions into an extratropical storm while located east-northeast of the Azores.
  1200 UTC (8:00 a.m. EDT) – Tropical Depression Seven develops southwest of Cape Verde.
  August 13
  0000 UTC (8:00 p.m. EDT August 12) – Tropical Depression Seven degenerates into a tropical wave.
  1200 UTC (8:00 a.m. EDT) – The tropical wave re-generates into Tropical Depression Seven.
  1800 UTC (2:00 p.m. EDT) – Tropical Depression Seven intensifies into Tropical Storm Fran.
  August 14
  1200 UTC (8:00 a.m. EDT) – Tropical Storm Fran attains its peak intensity with winds of 40 mph (65 km/h) and a minimum pressure of 1007 mbar (hPa; 29.74 inHg).
  1800 UTC (2:00 p.m. EDT) – Due to heavy land interaction with Venezuela, Tropical Storm Fran dissipates in the extreme southeast Caribbean.
  August 24
  0600 UTC (2:00 a.m. EDT) – Tropical Depression Eight develops 965 miles (1,555 km) east of Barbados.
  August 25
  0000 UTC (8:00 p.m. EDT August 24) – Tropical Depression Eight intensifies into Tropical Storm Gustav.
  0000 UTC (8:00 p.m. EDT August 24) – Tropical Depression Nine develops 700 miles (1,100 km) west-southwest of Cape Verde.
  August 26
  0600 UTC (2:00 a.m. EDT) – Tropical Depress
caption: Hurricane Gustav near peak intensity
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