10:00pm Dennis is now a category 4 storm with a pressure is 951 mb. 135mph winds, gusts to 160 mph. The next advisory update will reflect this. New forecast insight from Clark now available below or on the Met Blogs (available at left).
9:30pm Latest Recon report suggests Dennis is now a Category 4 storm. More to come soon. Dvorak T Numbers of 6.0 also suggest this.
7:45pm At 8PM, Dennis is now a very strong Category 3 storm, bordering on Category 4. It still has room for strengthening.
Pressure is down to 951 millibars and dropping.
Also, in the eastern Atlantic, another Tropical Wave is crossing the Atlantic.
Original Update Dennis is strengthening, probably a few more miles an hour at 8PM. No reason right now to adjust the track. But the cone of error still exists, and until the storm is in the Gulf, it would be wise for all to watch it and not assume that it will verify as shown now. Much depends on the ridge to the east of Florida now.
Recon Aircraft have found the eye to be completely closed off now, and pressure to be a few mb lower. So 8PM should up the speed. It has a running chance to get to be a category 4 before landfall in Cuba. Not good news for Cubans.
The warnings are up in the lower keys and evacuations are underway. There is a fair chance that Dennis will cross over or just west of Key West, so it is VERY IMPORTANT to heed emergency management suggestions there. Be prepared.
More to come later...
Keys Close up:
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