Ocean Basin Tropical Cyclone Cyclogenesis Date Cyclolysis Date Saffir-Simpson Category Maximum 6-hr Sustained Wind (kt) Maximum 6-hr Wind Gust (kt) Accumulated Cyclone Energy (ACE) Index (kt2)* Atlantic Alex 7/31/04 8/5/04 Cat 3 105 130 11.17 x 104 Atlantic Bonnie 8/9/04 8/12/04 TS 55 65 2.5 x 104 Atlantic Charley 8/9/04 8/15/04 Cat 4 125 150 10.44 x 104 Atlantic Danielle 8/13/04 8/21/04 Cat 2 90 110 11.95 x 104 Atlantic Earl 8/13/04 8/16/04 TS 40 50 1.05 x 104 Atlantic Frances 8/25/04 9/7/04 Cat 4 125 155 46.80 x 104 Atlantic Gaston 8/27/04 9/1/04 TS 60 75 2.18 x 104 Atlantic Hermine 8/29/04 8/31/04 TS 45 55 1.01 x 104 Atlantic Ivan 9/3/04 9/22/04 9/17/04 9/24/04 Cat 5 145 175 69.86 x 104 Atlantic Jeanne 9/14/04 9/27/04 Cat 3 100 120 24.80 x 104 Atlantic Karl 9/17/04 9/24/04 Cat 4 120 145 27.99 x 104 Atlantic Lisa 9/20/04 10/3/04 Cat 1 65 80 9.27 x 104 Atlantic Matthew 10/8/04 10/10/04 TS 40 50 0.77 x 104 Atlantic Nicole 10/10/04 10/11/04 Sub-TS 45 55 1.16 x 104

http://www.ncdc.noaa.gov/oa//climate/research/2004/atlantic-2004-ace.html Downloaded Wednesday, 25-Nov-2009 06:09:30 EST Last Updated Wednesday, 20-Aug-2008 12:22:58 EDT by David.Levinson@noaa.gov Please see the NCDC Contact Page if you have questions or comments.