Keeping in mind that the UKMET was one of the earliest, to consistently predict Dolly with runs doing that going back as far as 7 days fwiw:
The 12Z UKMET has a low form in the subtropics well off the SE coast that later either his or is about to hit the SE US for the 3rd run in a row. Yesterday’s 12Z’s low was weak and it was about to hit NE FL at the end (Sept 2nd). Today’s 0Z had a TS about to come into the S portion of the FL E coast on Sept. 3rd.
Today’s 12Z UKMET has TCG at hour 108 that initially moves W but then strengthens into a TS that turns NW to hit Charleston on Sept. 3rd:
NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 108 HOURS
FORECAST POSITION AT T+108 : 29.8N 74.4W
LEAD CENTRAL MAXIMUM WIND
VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS)
-------------- ---- -------- ------------- -------------
0000UTC 01.09.2026 108 29.8N 74.4W 1013 26
1200UTC 01.09.2026 120 29.8N 74.8W 1011 30
0000UTC 02.09.2026 132 29.5N 75.8W 1009 36
1200UTC 02.09.2026 144 30.3N 77.3W 1008 37
0000UTC 03.09.2026 156 31.4N 78.5W 1004 39
1200UTC 03.09.2026 168 33.1N 80.0W 1001 39