FIRST ALERT: Three chances of development, next storm name is Ida
MYRTLE BEACH, SC (WMBF) - We’re watching three chances of development this week and Ida is the next name on the 2021 list.
1. A broad trough of low pressure is producing disorganized showers and thunderstorms over the central tropical Atlantic about 900 miles east-northeast of the northern Leeward Islands. Little development of this system is expected during the next day or two due while it moves northwestward at about 15 mph over marginally conducive ocean temperatures and is affected by strong upper-level winds. Afterwards, environmental conditions are expected to become more favorable for gradual development, and a tropical depression could form by the end of the week while the system turns eastward over the central Atlantic. The chance of development remains at 20% over the next 48 hours and 60% over the next five days.
2. A broad area of low pressure is expected to form over the southwestern Caribbean Sea in a few days from a tropical wave currently located over the eastern Caribbean Sea. Environmental conditions are forecast to be conducive for development of the low, and a tropical depression could form late this week or this weekend while the system moves northwestward over the northwestern Caribbean Sea, across the Yucatan Peninsula of Mexico, and into the southwestern Gulf of Mexico by Sunday. The chance of development is at 60% over the next five days.
3. Another tropical wave over the far eastern tropical Atlantic located about 400 miles south-southwest of the Cabo Verde Islands is producing a concentrated area of showers and thunderstorms. Some development of this system is possible over the next several days while it moves westward to west-northwestward at 10 to 15 mph over the eastern tropical Atlantic. Upper-level winds are forecast to become less conducive for development by the weekend. The chance of development remains low at 20% over the next two days and 30% over the next five days.
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