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Hurricane Chris

By Scott Bachmeier •

GOES-16

GOES-16 “Red” Visible (0.64 µm, left) and “Clean” Infrared Window (10.3 µm, right) images [click to play MP4 animation]

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed Chris as it rapidly intensified (ADT | SATCON) to a Category 1 Hurricane by 2100 UTC (NHC discussion) on 10 July 2018.

A toggle between 375-meter resolution NOAA-20 Visible (0.64 µm) and Infrared Window (11.45 µm) images (below) revealed cloud-top infrared brightness temperatures as cold as -81ºC (violet enhancement) in a convective burst just northeast of the eye. [Note: the 1821 UTC NOAA-20 images are incorrectly labeled as Suomi NPP images]

NOAA-20 VIIRS Visible (0.64 µm) and Infrared Window (11.45 µm) images [click to enlarge]

NOAA-20 VIIRS Visible (0.64 µm) and Infrared Window (11.45 µm) images [click to enlarge]

Earlier in the day, a GPM satellite GMI Microwave (85 GHz) image from the CIMSS Tropical Cyclones site (below) showed that Tropical Storm Chris had not yet formed a closed eye at 1326 UTC.

GPM GMI Microwave (85 GHz) image [click to enlarge]

GPM GMI Microwave (85 GHz) image [click to enlarge]

However, a MIMIC-TC animation spanning the 0000 to 1925 UTC time period (below) showed the eye formation process completing as the estimated maximum speed (Vmax) increased from 60 to 75 knots.

MIMIC-TC morphed microwave image product [click to enlarge]

MIMIC-TC morphed microwave image product [click to enlarge]

Categories: GOES-16, Microwave, NOAA-20, Other Satellites, Tropical cyclones, VIIRS