First Depression May Form Soon
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An unusually strong tropical wave is moving across the central part of the Atlantic Ocean this morning. The National Hurricane Center has designated the disTurbinece as 92L and it has the potential of becoming 2010's first tropical depression today or tomorrow. Seeing a developing tropical system over the central Atlantic this early in the season is very rare. Tropical Storm Ana in 1979 is the only named storm that has developed between Africa and the Leeward Islands during the month of June.
According to satellite data, the 92L may have a broad, low level circulation, but it's not well formed. Wind shear is low for now, but it may encounter slightly higher levels of wind shear over the next two days with its westward movement. Moisture in the higher levels is abundant and is forecast to stay favorable for the system on its current forecast track. One inhibiting factor for development is its southern location. Right now, 92L is centered near 8° North, and its proximity to the equator prevents it from using the Earth's rotation to get its "spin".
Forecast models are in general agreement for further development, with some bringing 92L to tropical storm status. None of the models, however, forecast 92L to become a hurricane at this time.
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