Thats a High Density Ob, and is only representative of 10 minutes data, not the entire recon flight. However, these obs do provide some pretty good detail on the disturbance.

EDIT: As an example, the last batch of data from 1910 - 1920Z shows the aircraft is moving NE away from Trinidad and Tobago, and as it heads closer to the apparent centre, the extrapolated pressure is gradually dropping - down to 1010.3 mb at the last entry.

1930z - Pressure down to 1009.8 according to the latest HDOB, as the aircraft heads towards Barbados