September 2006 Tropical Cyclones Report

• Atlantic Basin
• Pacific Basin

Atlantic Basin

Hurricane Florence Satellite Image	Hurricane Florence Track Saffir-Simpson Scale Color Legend
Florence formed between Africa and the Lesser Antillies on September 3rd and began tracking to the Northwest. Florence became a Category 1 hurricane and brushed the western coast of Bermuda causing large swells, rip tides and undertows. Maximum winds for Florence were 80 kt and minimum central pressure was 972 millibars (28.70 inches of mercury). The ACE Index Value was 12.2207 x 104 kt2. More information on Florence is available from the NOAA National Hurricane Center.
Hurricane Gordon Satellite Image	Hurricane Gordon Track Saffir-Simpson Scale Color Legend
Northeast of the Lesser Antilles, Gordon became organized on the 10th and began a northwesterly track. The storm attained Category 3 status with winds of 105 kt on the 13th, the first major hurricane of the Atlantic season. Minimum central pressure was 955 millibars (28.20 inches of mercury). Gordon eventually turned to the northeast and became extratropical. The ACE value for Gordon was 21.415 x 104 kt2. More information on Gordon is available from the NOAA National Hurricane Center.
Hurricane Helene Satellite Image	Hurricane Helene Track Saffir-Simpson Scale Color Legend
A tropical wave formed off the African coast on the 11th and quickly orgranized. Helene went from a tropical depression to a major hurricane in just 5 days and remained in the central Atlantic before dissipating. While a major hurricane, Helene's maximum sustained winds were 110 kt and mimimum central pressure was 954 millibars (28.17 inches of mercury). The ACE value for Helene was 27.8713 x 104 kt2. More information on Helene is available from the NOAA National Hurricane Center.
Hurricane Isaac Satellite Image	Hurricane Isaac Track Saffir-Simpson Scale Color Legend
Isaac became a depression in the central Atlantic on the 27th and passed about 280 miles (450 km) east of Bermuda as a Category 1 hurricane with winds sustained at 75 kt and a mimimum central pressure of 985 millibars (29.09 inches of mercury). Isaac continued tracking to the north and began to weaken. It brushed the Newfoundland coast as a tropical storm before dissipating. The ACE value for Isaac was 6.725 x 104 kt2. More information on Isaac is available from the NOAA National Hurricane Center.

Pacific Basin

September was a quite month when compared with August. One tropical storm and one hurricane formed. Hurricane Lane made landfall along the Mexican coast as a category 3 storm on the 16th. For additional information, see the summaries below.

Tropical Storm Miriam Satellite Image	Tropical Storm Miriam Track map Saffir-Simpson Scale Color Legend
Miriam formed as a tropical disturbance on the 16th approximately 500 miles southeast of Cabo San Lucas, Mexico. The storm moved northeast, under the influence of Hurricane Lane, and gained strength becoming a tropical storm later that day. Lane reached a peak intensity of 40 kt (45 mph) before weakening due to the effects of cooler waters and vertical wind shear. Minimum central pressure was 999 millibars (29.50 inches of mercury). The ACE value for Miriam was 0.8475 x 104 kt2. More information on Miriam is available from the NOAA National Hurricane Center.
Hurricane Lane Satellite Image	Hurricane Lane Track map Saffir-Simpson Scale Color Legend
Lane began as a tropical disturbance located about 125 miles west-southwest of Acapulco, Mexico. The storm moved parallel to the Mexican coast and continued to strengthen, eventually becoming a major hurricane with maximum sustained winds of 110 kt. Minimum central pressure was 952 millibars (28.11 inches of mercury). Lane made landfall as a Category 3 storm in the Sinaloa State of Mexico on the 16th. The ACE value for Lane was 6.8225 x 104 kt2. More information on Lane is available from the NOAA National Hurricane Center.

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