Hurricane Sandy moves north of the Bahamas

October 26th, 2012 |
GOES-14 0.63 µm visible channel images and 10.7 µm infrared channel images (click image to play animation)

GOES-14 0.63 µm visible channel images and 10.7 µm infrared channel images (click image to play animation)

SRSO-R operations continue today with GOES-14, allowing for very high temporal resolution imaging of a sheared Hurricane Sandy as it moves away from the Bahamas. The exposed low-level circulation is apparent in the imagery, as well as strong convection north and west of the low-level center. A closer view of the exposed low-level circulation can be seen in this QuickTime movie of GOES-14 visible imagery.

A map of deep layer wind shear, below, from the CIMSS Tropical Cyclones site, shows strong shear associated with an upper level low pressure system south and west of Sandy.

Wind Shear, 1800 UTC 26 October

Wind Shear, 1800 UTC 26 October

A comparison of AWIPS images of Suomi NPP VIIRS 0.64 µm visible channel and 11.45 µm IR channel data (below) showed the exposed low-level circulation center of Sandy at 18:26 UTC (2:26 PM local time), and the deep convection to the north which exhibited cloud top IR brightness temperatures as cold as -87 C (violet color enhancement).

Suomi NPP VIIRS 0.64 µm visible channel and 11.45 µm IR channel images

Suomi NPP VIIRS 0.64 µm visible channel and 11.45 µm IR channel images

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