Super Typhoon Sanba

September 13th, 2012 |
MTSAT-2 10.8 µm IR channel images (click image to play animation)

MTSAT-2 10.8 µm IR channel images (click image to play animation)

McIDAS images of MTSAT-2 10.8 µm IR channel images (above; click image to play animation) showed the formation of a large and well-defined eye as Super Typhoon 17W (Sanba) intensified over the West Pacific Ocean on 13 September 2012.

A plot of the CIMSS Advanced Dvorak Technique intensity estimate (below) showed the trend of rapid intensification.

CIMSS ADT plot for Storm 17W (Sanba)

CIMSS ADT plot for Storm 17W (Sanba)

Sanba was in an environment characterized by relatively low values of Deep Layer Wind Shear (below), which favored intensification.

MTSAT-2 IR images + Deep layer wind shear

MTSAT-2 IR images + Deep layer wind shear

Sanba had also been moving over a region with very warm Sea Surface Temperatures and a very high Ocean Heat Content values (below).

Track of Sanba overlaid on Sea Surface Temperature + Ocean Heat Content products

Track of Sanba overlaid on Sea Surface Temperature + Ocean Heat Content products

The first daylight MTSAT-2 0.7 µm visible channel images (below) showed nice eye and eyewall structure.

MTSAT-2 0.7 µm visible channel images

MTSAT-2 0.7 µm visible channel images