Figure 1. Best Track analysis of Hurricane Lisa, the last hurricane of the 2004 Season. 1
Light Red=Category 1-2 Hurricane
Dark Red=Category 3-5 Hurricane
Lisa was an interesting Cape-Verde type hurricane which followed a very similar path to that taken by Hurricane Karl a few days before. Lisa was the last hurricane to develop during the highly active 2004 Atlantic Hurricane Season, reaching very high latitudes before puttering out over the North Atlantic.
Lisa developed from a weak tropical wave that emerged off the coast of Africa around 16 September, just a few hundred miles east of Tropical Depression Twelve, which would become Hurricane Karl a few days later. Lisa’s proximity to Hurricane Karl would cause her some problems in the Central Atlantic.
At 18 UTC on 19 September, the Tropical wave west of the Cape Verde Islands began to organize, and advisories were started on Tropical Depression Thirteen.2 A few hours later, TD 13 had organized sufficiently to be classified as Tropical Storm Lisa at 12Z on 20 September. This is where Lisa’s intensification stopped, as outflow from Karl to her west began shearing thunderstorms off her low level center of circulation. During the afternoon of 23 September, Lisa succumbed to the increasing vertical wind shear, and weakened to a 30 kt Tropical Depression.3
At 06 UTC on 24 September, TD 13 once again strengthened into a Tropical Storm, before weakening to a Depression six hours later. At 06 UTC on 25 September, the depression strengthened one more time into a Tropical Storm nearly 1500 miles west of the Cape Verde Islands.4 Lisa would maintain Tropical Storm Intensity for 12 days as she wandered northward in the Central Atlantic. Early on 2 October, Lisa finally strengthened into a minimal, 65 kt (75 mph) hurricane 745 miles west of the Azores. This intensity was short-lived, however, as cooler Sea Surface Temperatures, increasing shear, and interaction with a frontal boundary began to affect the tropical cyclone. At 06 UTC on 3 October, Lisa became extratropical over the northern Atlantic Ocean.
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MODIS Aqua RGB using the MOD02HKM product. This image is of the swath data from Oct 01 at 1540 hrs. More images like this and parameters animation created from other datasets can be seen in our Archive Image Gallery for hurricane Lisa
1. Image courtesy of the NOAA coastal Services Center Http://hurricane.csc.noaa.gov/hurricanes
2. Lawrence, Miles. “Tropical Depression Thirteen Advisory Number 1.” 19 September 2004. http://www.nhc.noaa.gov/archive/2004/pub/al132004.public.001.shtml? (7 August 2006).
3. Lawrence, Miles. “Tropical Depression Thirteen Discussion Number 18.” 23 September 2004. http://www.nhc.noaa.gov/archive/2004/dis/al132004.discus.018.shtml? (7 August 2006).
4. Beven, Jack. “Tropical Storm Lisa Advisory Number 24.” 25 September 2004. http://www.nhc.noaa.gov/archive/2004/pub/al132004.public.024.shtml? (7 August 2006).