Talking the Tropics With Mike: Disturbance over the Bay of Campeche slowly organizing

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A tropical wave combined now with an area of low pressure with persistent showers & t'storms has moved over the Bay of Campeche of the SW Gulf of Mexico.  There are some signs of organization & t'storms are increasing.  Indications are that this low will move north/northeast & eventually - over the weekend - hook up with a cold front & move northeast to the Gulf Coast by late Sat./Sun.  It appears that the system will remain rather weak but could become a tropical depression or even low end tropical storm before feeling the effects of shear & before becoming more extra- or post-tropical (hybrid low pressure) by late in the weekend.

Expect at least heavy rain through the weekend from the Texas coast eastward through Louisiana, Mississippi & Alabama & the Fl. Panhandle.

Rainfall forecast:

Atlantic dust:

2019 names..... "Olga" is next on the Atlantic list (names are picked at random... repeat every 6 years... historic storms are retired (Florence & Michael last year) & Dorian is almost certain to be next:

Nontropical low pressure will developing over the open North Atlantic through next week well to the north & east of Bermuda.  There is some chance for transition to a tropical or subtropical low in the long range (7+ days).

East Atlantic:

Mid & upper level wind shear (enemy of tropical cyclones) analysis (CIMMS). The red lines indicate strong shear of which there is plenty across the Atlantic at the moment:

The Atlantic Basin:

Water vapor imagery (dark blue indicates dry air):

Deep oceanic heat content is extreme over the NW Caribbean:

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....  typhoon "Bualoi" will recurve the next few days to the east of Japan.