Weather

Talking the Tropics With Mike: Nontropical low pressure over the Central Atlantic

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An area of low pressure continues over the Central Atlantic & has merged with a cold front. Some forecast models show the low stalling by late week/this weekend over the Atlantic at which point it’s possible the low could acquire some subtropical characteristics while drifting rather aimlessly to the south while not impacting any land areas.

Atlantic Basin wave forecast for 24, 48 & 72 hours respectively:



Saharan dust, dry air:

2020 names..... “Wilfred” was the last name on the Atlantic list (names are picked at random by the World Meteorological Organization... repeat every 6 years... historic storms are retired (Florence & Michael in ’18 & Dorian is certain to be retired from the ’19 list). Interesting side note: the last six of the names on the ’20 list had never been used. So it’s on to the Greek alphabet. "Kappa” is next... the first time the Greek alphabet has been used since 2005 (total of 28 named storms using 6 Greek letter names in ’05 [there was one unnamed storm). Theta broke the record for the most Atlantic storms in a single season on record at 29.

East Atlantic:

Mid & upper level wind shear (enemy of tropical cyclones) analysis (CIMMS). The red lines indicate strong shear:

Water vapor imagery (dark blue indicates dry air):

Deep oceanic heat content:

Sea surface temp. anomalies:

SE U.S. surface map:

Surface analysis centered on the tropical Atlantic:

Surface analysis of the Gulf:

Caribbean:

Global tropical activity: