TD 7 Becomes Grace

It really did not take long for tropical depression 7 to move up the ladder to a full fledged tropical storm dubbed Grace.

NHC forecasters are keeping their official track on the south side of the overall envelope of the various computer guidance tracks. Synoptic conditions should be conducive for some intensification during the next 24 to 36 hours, with the storm embedded in an environment of light easterly shear and over warm SSTs. The one caveat is that a general drying of the lower to middle troposphere
in the near-storm environment is forecast, possibly due to increasing subsidence, which could squelch additional strengthening. After 48 hours, the cyclone is expected to encounter westerly flow aloft associated with an enhanced upper-level trough extending from near the Antilles to the eastern tropical Atlantic. This pattern should produce enough vertical shear to cause weakening or possibly
even dissipation by day 4 or 5 of the forecast as it nears the Lesser Antilles.

-Brian-

Category: Tropical