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From the 2:05 tropical discussion: "Another upper cyclone...400NM in diameter...is along the W periphery of the altc ridge near 24N78W. The cyclone is retrograding W at about 10KT...possibly contributing slightly to Frances steering N of due W at this time." Recall I suggested yesterday and again this morning this low would influence the course of the strom and because it was not retrograding as fast as the storm was approaching. Iit could explain why the models had picked up on the NW move... Now the latest WV suggests that this ULL is accelerating to the SW a little faster and the strom has actually pushed this west much more today than it did yesterday. the eastern most influence of it westerday was over Hipanola, but today it is west of the Bahamas, and the axis of the ULL is digging to the SW. Perhaps the models tomorrow will reflect the lessining of the influence of this VERY LARGE upper feature, and reshape the projected path again. |