Timeline of the 2009 Atlantic hurricane season

A map of the Atlantic Ocean depicting the tracks of 11 tropical cyclones.
Track map of all Atlantic tropical cyclones in 2009

The 2009 Atlantic hurricane season was a below-average year in which nine tropical storms formed, the fewest since 1997.[nb 1][1] Although Tropical Depression One formed on May 28, 2009, the season officially began on June 1 and ended on November 30.[2][3] The season's last storm, Hurricane Ida, dissipated on November 11.[4]

The season had eleven tropical depressions, of which nine intensified into tropical storms, three became hurricanes, and two became major hurricanes.[nb 2] The inactivity throughout the basin was linked to the formation of an El Niño, which increased wind shear.[1] The two most significant storms of the season, in terms of loss of life and damage, were Hurricanes Bill and Ida. Hurricane Bill was an unusually large storm and was also the season's strongest, attaining winds of 135 mph (215 km/h).[5] Tropical Storm Claudette was the only storm during 2009 to make landfall in the United States; Hurricane Ida became extratropical shortly before coming ashore in Alabama.

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

Timeline of events

Hurricane Ida (2009) Tropical Storm Henri (2009) Tropical Storm Grace (2009) Hurricane Fred (2009) Tropical Storm Erika (2009) Tropical Storm Danny (2009) Tropical Storm Claudette (2009) Hurricane Bill (2009) Tropical Storm Ana (2009) Tropical Depression One (2009) Saffir–Simpson Hurricane Scale

May

Satellite picture of a small cluster of clouds off the U.S. East Coast
Pre-season Tropical Depression One on May 28
May 28
May 29

June

June 1

July

August

Satellite image of a mature hurricane over the open Atlantic displaying several characteristics of an intense hurricane, including an eye at the center and large spiraling rainbands
Hurricane Bill near peak intensity
August 11
August 12
August 13
August 14
August 15
August 16
August 17
Map of the southern United States detailing the rainfall totals from a tropical storm. The heaviest totals, denoted in orange coloring, are located over northern Florida.
Rainfall totals from Tropical Storm Claudette in the Southeast United States
August 18
August 19
August 20
August 21
August 22
Satellite image of a disorganized mass of clouds over open waters
Tropical Storm Danny shortly after being classified
August 23
August 24
August 26
August 29

September

September 1
September 2
September 3
Oblique view of a hurricane in the eastern Atlantic Ocean
Computer visualization of Hurricane Fred on September 9 showing the storm's proximity to Africa
September 7
September 8
September 9
September 10
September 11
September 12
September 25
September 26

October

The track of a tropical storm starting over the central Atlantic, completing a counter-clockwise loop, and bending northeastward towards Europe
Track of Tropical Storm Grace
October 4
October 5
October 6
October 7
October 8

November

November 4
November 5
A sprawling hurricane over the Yucatan Channel, with clouds from the storm covering much of the Caribbean Sea
Hurricane Ida over the Yucatan Channel near peak intensity on November 8
November 6
November 7
November 8
November 9
November 10
November 30

See also

Notes

  1. An average season has eleven tropical storms, six hurricanes and two major hurricanes.
  2. A major hurricane is a storm that ranks as Category 3 or higher on the Saffir-Simpson Hurricane Scale.
  3. The figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's operational products for each storm. All other units are rounded to the nearest digit.

References

  1. 1 2 National Hurricane Center (November 30, 2009). "Slow Atlantic Hurricane Season Comes to a Close". National Oceanic and Atmospheric Administration. Retrieved January 20, 2010.
  2. Neal Dorst (2009). "Subject: G1) When is hurricane season?". National Hurricane Center. Retrieved January 20, 2010.
  3. 1 2 3 4 Robbie Berg (June 12, 2009). "Tropical Depression One Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 18, 2010.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Lixion A. Avila and John Cangialosi (January 14, 2010). "Hurricane Ida Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lixion A. Avila (January 18, 2010). "Hurricane Bill Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 18, 2010.
  6. Eric S. Blake (July 1, 2009). "Monthly Tropical Weather Summary for June 2009". National Hurricane Center. Retrieved January 18, 2010.
  7. 1 2 Neal Dorst (2009). "Subject: G1) When is hurricane season ?". National Hurricane Center. Retrieved January 18, 2010.
  8. Lixion A. Avila and Eric S. Blake (August 1, 2009). "Monthly Tropical Weather Summary for July 2009". National Hurricane Center. Retrieved January 18, 2010.
  9. 1 2 3 4 5 6 7 Eric S. Blake (September 26, 2009). "Tropical Storm Ana Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 18, 2010.
  10. 1 2 3 4 5 6 7 Richard J. Pasch (January 5, 2010). "Tropical Storm Claudette Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 18, 2010.
  11. 1 2 3 John L. Beven II (January 6, 2010). "Tropical Storm Danny Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 18, 2010.
  12. 1 2 3 4 5 Daniel P. Brown (October 29, 2009). "Tropical Storm Erika Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.
  13. 1 2 3 4 5 6 7 8 9 Michael J. Brennan (October 23, 2009). "Hurricane Fred Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.
  14. 1 2 Todd B. Kimberlain (October 23, 2009). "Tropical Depression Eight Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.
  15. 1 2 3 4 Robbie Berg (November 28, 2009). "Tropical Storm Grace Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.
  16. 1 2 3 4 5 Eric S. Blake (November 17, 2009). "Tropical Storm Henri Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved January 20, 2010.

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