Tropical Cyclone Sidr

November 14th, 2007 |

Meteosat-7 IR images (Animated GIF)

Meteosat-7 IR images sourced from the CIMSS Tropical Cyclones site (above) showed Category 4 intensity Tropical Cyclone Sidr as it moved northward across the Bay of Bengal on 14 November 2007. Increasing amounts of deep layer wind shear (below) to the north of the storm may act to diminish the intensity of Sidr somewhat as it approaches land, but catastrophic storm surge flooding will still be a danger across much of the flood-prone flat river delta regions along the coast of Bangladesh. A tropical cyclone with winds of 150 mph (240 km/hr) and a storm surge of 16-32 feet (5-10 meters) killed an estimated 500,000 people in Bangladesh in November 1970.

Meteosat-7 IR image + wind shear analysis

CIMSS Advanced Dvorak Technique intensity estimate

The CIMSS Advanced Dvorak Technique (ADT) plot (above) indicated an intensity estimate of 140 knots late in the day on 14 November — this was not long after the center of Sidr passed over a region of higher Ocean Heat Content over the Bay of Bengal (below).
Ocean Heat Content