page_title: Timeline of the 2007 Pacific hurricane season
section_title: September
hierarchical_section_title: Timeline of the 2007 Pacific hurricane season / Timeline of storms / September
caption_attribution_description: English: Track map of Hurricane Henriette of the 2007 Pacific 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 2007 Pacific hurricane season was an event in the annual cycle of tropical cyclone formation. This timeline documents all the storm formations, strengthening, weakening, landfalls, extratropical transitions, and dissipation. The timeline also includes information which was not operationally released, which is information from post-storm analysis by the National Hurricane Center.
  The season officially started on May 15, 2007 in the eastern Pacific, designated as the area east of 140°W, and on June 1, 2007 in the central Pacific, which is between the International Date Line and 140°W, and lasted until November 30, 2007. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. The season began slowly; through the end of July, the seasonal Accumulated Cyclone Energy was the third lowest since the geostationary satellite era began in the 1966 Pacific hurricane season. The inactivity continued through the next month, which was the third quietest August in terms of ACE since reliable records began in the basin during the 1971 Pacific hurricane season.
context_section_description: September 2
  11:00 a.m. PDT (18:00 UTC) – Tropical Depression Gil is downgraded to a remnant low.
  September 3
  11:00 p.m. PDT (06:00 UTC September 4) – Tropical Storm Henriette is upgraded to Hurricane Henriette.
  September 4
  2:00 p.m. PDT (21:00 UTC) – Hurricane Henriette makes landfall just east of San José del Cabo, Mexico with 80 mph (130 km/h) winds.
  September 5
  5:00 p.m. PDT (00:00 UTC September 6) – Hurricane Henriette is downgraded to a tropical storm.
  5:00 p.m. PDT (00:00 UTC September 6) – Tropical Storm Henriette makes a second landfall near Guaymas, Mexico.
  September 5
  11:00 p.m. PDT (06:00 UTC September 6) – Tropical Storm Henriette is downgraded to a tropical depression.
  September 6
  5:00 a.m. PDT (12:00 UTC) – Tropical Depression Henriette dissipates.
  September 17
  11:00 p.m. PDT (06:00 UTC September 18) – Tropical Depression Twelve-E forms south-southeast of the southern tip of Baja California.
  September 18
  5:00 p.m. PDT (00:00 UTC September 19) – Tropical Depression Twelve-E is upgraded to Tropical Storm Ivo.
  September 18
  11:00 p.m. PDT (06:00 UTC September 19) – Tropical Depression Thirteen-E forms west-southwest of the southern tip of Baja California.
  September 19
  5:00 p.m. PDT (00:00 UTC September 20) – Tropical Storm Ivo is upgraded to Hurricane Ivo.
  September 20
  5:00 p.m. PDT (00:00 UTC September 21) – Tropical Depression Thirteen-E is downgraded to a remnant low.
  September 21
  11:00 a.m. PDT (18:00 UTC) – Hurricane Ivo is downgraded to a tropical storm.
  September 22
  5:00 p.m. PDT (00:00 UTC September 23) – Tropical Storm Ivo is downgraded to a tropical depression.
  September 23
  11:00 a.m. PDT (18:00 UTC) – Tropical Depression Ivo is downgraded to a low.
  September 28
  5:00 p.m. PDT (00:00 UTC September 29) – Tropical Depression Fourteen-E forms west-southwest of Manzanillo.
  September 29
  5:00 a.m. PDT (12:00 UTC) – Tropical Depression Fourteen-E is upgraded to Tropical Storm Juliette.
caption: Hurricane Henriette track map
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