Hi,
Yep, I have had a busy summer, followed by a bit of a vacation, and now busy again. But, I do take a peak at the weather discussions every now and then.
Wilma really bombed the other day, falling to the lowest Atlantic storm pressure ever recorded. And it did it with spectacular speed, breaking records for fastest drops in pressure, going from a nominal Cat 1 to a strong Cat 5 in twelve hours.
At this time, the hurricane is undergoing an Eye Replacement Cycle. During this time, the hurricane usually loses a bit of steam. It is likely to pick up again once the cycle has completed, perhaps back to a Cat 5. The storm may clip the Yucatan which would likely degrade the storm again. There is a good bit of warm water in the SE Gulf of Mexico to sustain it afterward.
Guidance. The storm has been a bit west of predicted, so this is a concern. Primarily, the guidance of this storm is based on timing. The jet stream is dropping down to 'meet' the hurricane and push it east. While most of the models today place landfall on the south end of Florida, the GFDL (a fairly reliable indicator) falls slightly north of the pack. The LBAR model takes landfall further north toward Tampa and Orlando. I dont know how reliable the LBAR has been.
Going forward, the factors to watch for are -
1) If the storm slows a bit or the jet doesnt dip at right moment, the guidance may be more north; if they connect at the right moment, the Keys are in danger. A few degrees in angle or a change in timing may be all the difference.
2) I will note that the further west or longer it takes for a move more northward, the tighter the easterly angle will need to be to meet current forecasts.
3) How well does the
recover after an Eye Replace Cycle. How close the storm gets to the Yucatan. What will the warm water after the Yucatan do?
How does this affect Orlando? Even if the storm doesnt make a direct hit (and its in window), do expect a stormy weekend with some intense outer bands that can extend hundreds of miles away from the center.
Here are some interesting links...
Sat History of Storm
Sea Surface Temps
The National Hurricane Center
-- Karl
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