A Tropical/Subtropical Storm May Form Just North-Northeast of Bermuda

| September 24, 2021 @ 1:42 pm

We continue to stay rather active out in the tropics as we have four areas of interest to keep our eyes on. You know about Hurricane Sam already. His next advisory will come out around 4pm. We also have the remnants of Odette, along with two other areas where cyclone formation is possible. Here is the latest from the National Hurricane Center:

Surface observations and recent satellite wind data indicate that a surface low located a couple hundred miles north-northeast of Bermuda is gradually becoming better defined as it interacts with an upper-level trough. This system is producing winds of 40 to 45 mph north of the low center, and additional development into a subtropical or tropical storm appears likely. Advisories could be initiated as soon as this afternoon as the system moves slowly toward the north-northwest over the next day or so.
* Formation chance through 48 hours… high… 70 percent.
* Formation chance through 5 days… high… 70 percent.

A gale-force, non-tropical low pressure system, the remnants of Odette, is located less than 600 miles west of the westernmost Azores. Showers and thunderstorms have mostly dissipated near the low, and strong upper-level winds are now expected to prevent further development as this system moves gradually southward until dissipation.
* Formation chance through 48 hours… low… near 0 percent.
* Formation chance through 5 days… low… near 0 percent.

A tropical wave is expected to move off the west coast of Africa by the end of this weekend. Thereafter, environmental conditions are forecast to be conducive for gradual development, and a tropical depression could form by the middle of next week while the system moves westward at 10 to 15 mph over the far eastern tropical Atlantic.
* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…medium…50 percent.

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Category: ALL POSTS, Tropical

About the Author ()

Scott Martin is an operational meteorologist, professional graphic artist, musician, husband, and father. Not only is Scott a member of the National Weather Association, but he is also the Central Alabama Chapter of the NWA president. Scott is also the co-founder of Racecast Weather, which provides forecasts for many racing series across the USA. He also supplies forecasts for the BassMaster Elite Series events including the BassMaster Classic.

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