Re: Con-Vergence
Posted by Jake on 7/26/2011, 9:33 am
D,

Although an upper anticyclonic outflow is lacking, deep layer moisture, high oceanic heat content and moderate vertical 850-500mb vorticity have been sufficient to sustain convection and form a TC as was the case with Bret!!! . Current upper air dynamics are weak, with an inverted upper trough across the southern gulf and a strong upper high over the US. This feature is forecast to keep  a moderate easterly 200-300mb flow which normally is not favorable, but a WNW track @ 15-20mph would keep the center moving with the vertical flow and aid the disturbance.

The system has its work cut-out in the days ahead, shear and possibly the northern yucatan.

If the trend continues, the NHC will increase prob today as a TD maybe forming. Pressures around the nearest bouy was down to 29.84. !!
88
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Con-Vergence - Doorman, 7/26/2011, 8:59 am
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