Late on October 4th, the weather system in the far northeast Atlantic acquired sufficient tropical characteristics to be classified as a Tropical Storm, and Grace was named. The visible image from GOES-12 above shows the counterclockwise swirl of clouds. GOES-12 is over the Equator at 75 degrees W Longitude,... Read More
MTSAT-1R 10.7 µm IR images (above) showed Super Typhoon Choi-Wan (17W) as it reached Category 5 intensity over the western North Pacific Ocean during the 15 September – 16 September 2009 period. The eye of the typhoon was quite large (which moved just... Read More
Meteosat-9 IR images from the CIMSS Tropical Cyclones site (above) showed that Hurricane Fred began to exhibit a well-defined eye as it rapidly intensified to a Category 3 storm on 09 September 2009. As noted in the National... Read More
Vertical wind shear is the change of wind speed and/or direction with height. For tropical cyclones, wind shear is something that must be overcome if strengthening is to occur. For (minimal) tropical storm Danny, strong wind shear has persisted in keeping convection far from the storm center. When the storm... Read More
