[Cpex-cv-all] [EXTERNAL] Use of today's (23 Sept) DC-8 CPEX-CV data by NHC

[Zawislak, Jonathan A]

Good evening team,

Thanks for all of your hard work to make today’s flight happen, especially given all of our challenges today between a reduced crew, lack of workable airspace in Dakar controlled areas due to their ATC strike, and rapidly evolving weather. In addition to the great science we were able to accomplish, I also want to call attention to the fact that our data was used in the declaration of the African easterly wave we flew as Tropical Depression 10 by the National Hurricane Center, as described in their first advisory...https://www.nhc.noaa.gov/text/refresh/MIATCDAT5+shtml/231445.shtml? <https://www.nhc.noaa.gov/text/refresh/MIATCDAT5+shtml/231445.shtml?>

Excellent team work by all in the air and on the ground!
Have a great down day tomorrow,

Jon

Satellite images indicate that the strong tropical wave that NHC has 
been tracking for several days over western Africa has developed a 
well-defined surface center over the far eastern Atlantic with 
organized bands of convection.  Dropsonde data from a DC-8 aircraft 
with the NASA field program Convective Processes EXperiment-Cabo 
Verde (CPEX-CV) has been quite useful in determining the central 
pressure and surface circulation definition of the low, with the 
central pressure of 1003 mb based on the dropsondes.  The initial 
wind speed is set to 30 kt, perhaps conservatively since the eastern 
side of the circulation has not been sampled by scatterometer or 
aircraft data.

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Jonathan Zawislak, PhD
Associate Scientist, UM/CIMAS, NOAA/AOML/HRD
4301 Rickenbacker Cswy
Miami, FL 33149
305-361-4403 (Office) — on telework, so use cell
302-383-9927 (Cell)
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