September 16, 2010 - Tropical Storm Karl (13L) approaching the Yucatan Peninsula

Tropical Storm Karl (13L) approaching the Yucatan Peninsula

The birth of Tropical Storm Karl over the northwest Caribbean Sea was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite as it passed overhead on September 14, 2010 at 19:05 UTC. Near that time, an Air Force Reserve Hurricane Hunter aircraft investigating the low pressure area found a vigorous wind/pressure system inside the larger cyclonic development. Subsequently, at 21:00 UTC the National Hurricane Center (NHC) issued the first advisory on the system, bringing it immediately to Tropical Storm status.

At the time of the first advisory, the storm was located at about 270 mi (435 km) east of Chetumal Mexico with maximum sustained winds of 40 mph (65 km/hr) and tracking west northwest at 15 mph (24 km/hr). By the next morning the winds had intensified to 65 mph (100 km/hr) – just 9 mph less than Hurricane strength on the Saffir-Simpson Hurricane Wind Scale.

Tropical Storm Karl made landfall on September 15, 2010 at about 12:45 UTC along the southeast coast of the Yucatan Peninsula, about 30 miles (50 kilometers) east-northeast of Chetumal, Mexico. Shortly before that land, Hurricane Hunter aircraft measured maximum sustained winds of approximately 65 mph (100 km/hr). As the storm reached land, radar indicated the formation of an eye, but there is no other evidence to suggest it had reached Hurricane strength.

Since landfall, the storm has weakened slightly, and this weakening is expected to continue until Karl is reduced to a Tropical Depression by the time it reaches the west coast of the Yucatan Peninsula. One it moves over the warm, open waters of the Gulf of Mexico, forecasters predicted strengthening, possibly to Hurricane status before making landfall in mainland Mexico.

Image Facts
Satellite: Aqua
Date Acquired: 9/14/2010
Resolutions: 1km ( B), 500m ( B), 250m ( B)
Bands Used: 1,4,3
Image Credit: Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC