Posted on 05/25/2018 9:50:01 AM PDT by BBell
Thanks.
No. A sub-tropical storm is a hybrid tropical storm. It has the wind speeds of a tropical storm but not all of the tropical characteristics, meaning it is completely warm-core. It is a hybrid between a topical and extra-tropical system.
Their convection and strongest winds are usually on the north and northeast sides and the center of lowest pressure is usually sheered. They will usually transition to a warm-core system given enough time.
There are also sub-tropical depressions. They name them because they can be just as dangerous, mostly due to fresh-water flooding (heavy rain) as a regular tropical storm.
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