page_title: Timeline of the 1980 Atlantic hurricane season
section_title: September
hierarchical_section_title: Timeline of the 1980 Atlantic hurricane season / Timeline / September
context_page_description: The 1980 Atlantic hurricane season was an event in the annual tropical cyclone season in the north Atlantic Ocean. It was an average Atlantic hurricane season in which eleven named storms formed. The season officially began on June 1, 1980 and ended November 30, 1980. These dates, adopted by convention, historically describe the period in each year when most Atlantic systems form. Even so, Tropical Depression One did not form until July 17. The season's final storm, Hurricane Karl, dissipated on November 27.
  The season produced fourteen tropical depressions, of which 12 intensified into tropical storms, four became hurricanes and two became major hurricanes. The only significant storm during the season was Hurricane Allen, a long-lived Cape Verde-type hurricane that became one of the strongest hurricanes recorded in the Atlantic Ocean, as well as the earliest Category 5 hurricane on the Saffir–Simpson Hurricane Wind Scale ever recorded, a record that stood until Hurricane Emily during the 2005 season. Allen reached its peak intensity with maximum sustained winds of 190 mph with a minimum barometric pressure of 899 mbar.
context_section_description: September 1
  0000 UTC (8 p.m. AST August 31) – Tropical Depression Seven forms in the Central Atlantic.
  September 4
  1800 UTC (2 p.m. AST) – Tropical Depression Eight forms off the coast of Louisiana.
  1200 UTC (8 a.m. AST) – Tropical Depression Nine forms in the Eastern Atlantic.
  September 5
  1200 UTC (8 a.m. AST) – Tropical Depression Seven strengthens into a subtropical storm.
  1800 UTC (2 p.m. AST) – Tropical Depression Eight strengthens into Tropical Storm Danielle.
  0000 UTC (8 p.m. AST September 4) – Tropical Depression Nine strengthens into Tropical Storm Earl.
  September 6
  1200 UTC (8 a.m. AST) – Tropical Storm Danielle weakens to a tropical depression.
  0000 UTC (8 p.m. AST September 5) – Tropical Depression Ten forms off the coast of Africa.
  1800 UTC (2 p.m. AST) – Tropical Depression Ten strengthens to Tropical Storm Frances.
  September 7
  1200 UTC (8 a.m. AST) – Tropical Depression Danielle dissipates over Texas.
  0000 UTC (8 p.m. AST) – The subtropical storm transitioned into Tropical Storm Georges.
  September 8
  0000 UTC (8 p.m. September 7) – Tropical Storm Frances strengthens into a Category 1 hurricane.
  0000 UTC (8 p.m. September 7) – Tropical Storm Georges strengthens into a Category 1 hurricane.
  0600 UTC (2 a.m. AST) – Tropical Storm Earl strengthens into a Category 1 hurricane.
  1800 UTC (2 p.m. AST) – Hurricane Frances strengthens into a Category 2 hurricane.
  1800 UTC (2 p.m. AST) – Hurricane Georges transitions into an extratropical cyclone.
  September 9
  0000 UTC (8 p.m. AST September 8) – Hurricane Frances strengthens into a Category 3 hurricane.
  1800 UTC (2 p.m. AST) – Hurricane Frances weakens into a Category 2 hurricane.
  September 10
  1200 UTC (8 a.m. AST) – Hurricane Earl weakens into a tropical storm.
  1800 UTC (2 p.m. AST) – Tropical Storm Earl transitions into an extratropical storm.
  September 12
  0000 UTC (8 p.m. AST September 11) – Hurricane Frances weakens into a Category 1 hurricane
  September 13
  0600 UTC (2 a.m. AST) – Hurricane Frances re-strengthens into a Category 2 hurricane.
  September 17
  1200 UTC (8 a.m. AST) – Hurricane Frances weakens into a Category 1 hurricane.
  September 20
  0600 UTC (2 a.m. AST) – Hurricane Frances weakens into a tropical storm.
  1200 UTC (8 a.m. AST) – Tropical Depression Eleven forms approximately 237 miles (381 kilometers) to the south of Kingston, Jamaica.
  September 21
  0000 UTC (8 p.m. AST) – Tropical Storm Frances transitions into an extratropical storm.
  0600 UTC (2 a.m. AST) – Tropical Depression Eleven strengthens into Tropical Storm Hermine.
  September 22
  1200 UTC (8 a.m. AST) – Tropical Storm Hermine makes landfall in Belize with maximum sustained winds of 70 mph (110 km/h).
  September 24
  0600 UTC (2 a.m. AST) – Tropical Storm Hermine makes landfall in Coatzacoalcos, Mexico with maximum sustained winds of 70 mph (110 km/h).
  September 25
  1800 UTC (2 p.m. AST) – Tropical Storm Hermine weakens into a tropical depression.
  September 26
  0000 UTC (8 p.m. AST September 25) – Tropical Depression Hermine dissipates over Mexico.
caption: Frances as a hurricane in the Eastern Atlantic.
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