Category 5 Hurricane Celia

June 25th, 2010 |

GOES-11 IR images

GOES-11 IR images

Hurricane Celia became the first Category 5 tropical cyclone of the 2010 East Pacific season on 24 June — in fact, the 140 knot intensity of Celia tied with Hurricane Ava (1973) as the strongest East Pacific Basin hurricane on record during the month of June. GOES-11 IR images from the CIMSS Tropical Cyclones site (above) displayed an annular structure with a well-defined small diameter eye as the hurricane began to slowly weaken on 25 June 2010.

85 GHz microwave imagery from the SSM/I instrument (below) also revealed the nearly symmetric structure of the eye of the Celia.

SSMI/S 85 GHz microwave imagery

SSMI/S 85 GHz microwave imagery

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Terra MODIS 11.0 µm IR image

Terra MODIS 11.0 µm IR image

McIDAS images of Terra MODIS 11.0 µm IR channel data (above) showed the well-defined eye of Celia during the pre-dawn hours on 25 June, while GOES-11 0.65 µm visible channel images (below) show the evolution of the eye later in the day.

GOES-11 0.65 µm visible images

GOES-11 0.65 µm visible images

On the previous day (24 June) — as Celia was rapidly intensifying (CIMSS ADT plot) — the tropical cyclone exhibited  IR brightness temperature values as cold as -91º C at 07:30 UTC on GOES-11 10.7 µm IR images (below).

GOES-11 10.7 µm IR images

GOES-11 10.7 µm IR images

Update on the Gulf of Mexico oil slick

June 25th, 2010 |
MODIS true color (using bands 1/4/3) and false color (using bands 7/2/1) RGB images

MODIS true color (using bands 1/4/3) and false color (using bands 7/2/1) RGB images

A comparison of 250-meter resolution MODIS true color (created using bands 1/4/3) and false color (created using bands 7/2/1) images on 25 June 2010 from the SSEC MODIS Today site (above) showed the extent of the surface oil slick from the Deepwater Horizon offshore oil rig accident.

AWIPS images of early morning POES AVHRR 0.63 µm visible and 3.7 µm shortwave IR data (below) revealed a thin smoke plume drifting northwestward from a small fire hot spot (orange color enhancement) due to a fire that was set to burn off some of the surface oil.

POES AVHRR 0.63 µm visible and 3.7 µm shortwave IR images

POES AVHRR 0.63 µm visible and 3.7 µm shortwave IR images