Disturbance 1. Tropical Storm Helene is just offshore the northeastern coast of the Yucatan Peninsula and about 60 miles ENE of Cozumel, Mexico. Helene is moving NW at 9 MPH with maximum sustained winds of 70 MPH. Additional strengthening is forecast, and Helene is expected to become a hurricane later today. Helene is expected to begin a general northward motion later today and continuing through Friday. On the forecast track, the center of Helene will reach the Big Bend coast of Florida late Thursday. https://www.nhc.noaa.gov/text/refresh/MIATCPAT4+shtml/251153.shtml?
Disturbance 2. Eastern and Central Tropical Atlantic (AL98): A broad low pressure system associated with a tropical wave is located west of the Cabo Verde Islands. Environmental conditions appear favorable for gradual development of this system, and a tropical depression is likely to form in a few days while it moves westward to west-northwestward across the eastern and central tropical Atlantic. Formation chance through 48 hours...medium...50 percent and formation chance through 7 days...high...80 percent.
Disturbance 3. Central Subtropical Atlantic (AL99): A non-tropical area of low pressure is currently located several hundred miles to the northeast of Bermuda. The system is currently producing winds up to storm force, and environmental conditions could support some subtropical or tropical development over the next several days as the system moves generally eastward, remaining over the open waters of central Subtropical Atlantic. Formation chance through 48 hours...low...10 percent and formation chance through 7 days...low...20 percent.
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