2008 Atlantic Ocean Tropical Cyclones

Tropical Cyclone Cyclogenesis Date Cyclolysis Date Highest Saffir-Simpson Category Maximum 6-hr Sustained Wind (kt) Maximum 6-hr Wind Gust (kt) Accumulated Cyclone Energy (ACE*) Index (kt2) Landfall Information (date, location and sustained winds)
Arthur 5/31/08 6/01/08 TS 35 N/A 0.6125 x 104
Bertha 07/03/08 07/21/08 Cat 3 105 N/A 29.3325 x 104
Cristobal 07/20/08 07/24/08 TS 55 N/A 3.4325 x 104
Dolly 07/20/08 07/24/08 Cat 2 85 N/A 5.4725 x 104 07/23/08 - South Pardre Island, Texas (83 kt)
7/22/08–7/24/08 Total Precip (map)
Edouard 08/03/08 08/05/08 TS 55 N/A 1.6875 x 104 08/05/08 - Upper coast of Texas (55 kt)
8/03/08–8/05/08 Total Precip (map)
Fay 08/15/08 08/23/08 TS 55 N/A 6.9175 x 104 08/18/08 - Southwestern coast of Cuba(45 kt)
08/18/08 - Cape Romano, FL (52 kt)
08/21/08 - Eastern coast of Florida (52 kt)
08/23/08 - near Panama City, Florida (42 kt)
8/17/08–8/27/08 Total Precip (map)
Gustav 08/25/08 09/02/08 Cat 4 130 N/A 18.9550 x 104 08/26/08 - Southern coast of Haiti (80 kt)
08/28/08 - Southern coast of Jamaica (60 kt)
08/30/08 - Southern coast of Cuba (130 kt)
09/01/08 - Southern coast of Louisiana (96 kt)
9/01/08–9/05/08 Total Precip (map)
Hanna 08/28/08 09/07/08 Cat 1 70 N/A 7.7950 x 104 09/06/08 - North Caralina/South Carolina border (80 kt)
09/05/08–9/08/08 Total Precip (map)
Ike 09/01/08 09/14/08 Cat 4 125 N/A 38.2450 x 104 09/07/08 - Northern coast of Cuba (108 kt)
09/09/08 - Western Pinar del Rio Province, Cuba (70 kt)
09/13/08 - Galveston Bay, TX (95 kt)
9/11/08–9/15/08 Total Precip (map)
Josephine 09/02/08 09/05/08 TS 55 N/A 2.7900 x 104
Kyle 09/25/08 09/29/08 Cat 1 70 N/A 4.7325 x 104 09/28/08 - Southern Nova Scotia Province (65 kt)
Laura 09/29/08 10/01/08 TS 50 N/A 2.2725 x 104
Marco 10/06/08 10/07/08 TS 55 N/A 1.2100 x 104 10/07/08 Southeast of Tuxpan, Mexico (55 kt)
Nana 10/12/08 10/13/08 TS 35 N/A .6125 x 104
Omar 10/14/08 10/18/08 Cat 3 110 N/A 7.7925 x 104
Paloma 11/06/08 11/09/08 Cat 4 120 N/A 9.8950 x 104 11/08/08 Santa Cruz del Sur, Cuba (104 kt)
*The (ACE) Index calculations are based on preliminary data.


*The Accumulated Cyclone Energy (ACE) Index is calculated by summing the squares of the estimated 6-hourly maximum sustained wind speed in knots (Vmax2) for all periods in which the tropical cyclone is a tropical storm or greater intensity (sustained winds of 34 kt or greater). Note that the official NOAA definition of the ACE Index does not include those periods when the system is characterized as sub-tropical. However, we are including this information to allow for comparison between individual cyclones across all basins, many of which contain records which inadequately distinguish between tropical and subtropical cyclones. For a complete description of the ACE Index see Bell and Chelliah (2006), Journal of Climate (19) 590-612.


The Saffir-Simpson Scale for Tropical Cyclones

Category Miles Per Hour (mph) Knots (kt) Kilometers Per Hour (km hr-1)
Tropical Storm (TS)
39-73 34-63 63-118
Cat 1
74-95 64-82 119-153
Cat 2
96-110 83-95 154-177
Cat 3
111-130 96-113 178-209
Cat 4
131-155 114-135 210-249
Cat 5
156 or greater 136 or greater 250 or greater