Disturbance 1. Hurricane Helene has become a Category 2 hurricane with significant additional strengthening expected before landfall in Florida this evening or early Friday morning. Helene is currently currently packing near 100 MPH winds and is located about 320 miles SW of Tampa moving toward the north-northeast near 12 mph. This general motion is expected to continue with a significant increase in forward speed during the next 24 hours. On the forecast track, Helene will move across the eastern Gulf of Mexico today and cross the Florida Big Bend coast this evening or early Friday morning as a major hurricane. After landfall, Helene is expected to turn northwestward and slow down over the Tennessee Valley on Friday and Saturday.
Disturbance 2. Tropical Storm Isaac is moving east away from our area and is no threat to us. There are no coastal watches or warnings in effect.
Disturbance 3. Eastern and Central Tropical Atlantic (AL98): An area of low pressure is located several hundred miles west of the Cabo Verde Islands and has become more organized during the past several hours. Environmental conditions appear conducive for continued development of this system, and a tropical depression could form as soon as later today while it moves generally westward to west-northwestward near 15 mph today and tomorrow. The system is then forecast to slow down and turn northward late Friday and Saturday. Formation chance through 48 hours...high...80 percent and formation chance through 7 days...high...90 percent.
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