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Tropical Tropical Depression Eleven (1 Viewer)

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#9
97L has already been a tropical depression for a day at least, the NHC is being lazy and assumed it would go away but obviously it must have had a strong LLC last night because it's been naked for almost the entire day and is still continuously firing convection to its east (due to strong westerly shear) while low-level westerlies are obvious from the low-level cloud field.
 

ForsythSnow

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#10
97L has already been a tropical depression for a day at least, the NHC is being lazy and assumed it would go away but obviously it must have had a strong LLC last night because it's been naked for almost the entire day and is still continuously firing convection to its east (due to strong westerly shear) while low-level westerlies are obvious from the low-level cloud field.
I was thinking that earlier. Isaac looked about the same, and it's evident there is an organized tight LLC.

Now the NHC issued a special update, but it's contradictory in terms of words and percent.

Updated: Shower and thunderstorm activity associated with a
well-defined low pressure system located about 500 miles east of the
Windward Islands has become better organized over the past few
hours, and a tropical depression could form later tonight or
Saturday. Strong upper-level winds and dry air are likely to
prevent additional development of this system by late this weekend
while it moves west-northwestward to northwestward at around 10 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...40 percent.
 

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