Talking the Tropics With Mike: 50 Year Anniversary of Hurricane Agnes

Action right now is in the E. Pacific

Jacksonville, Fl. — The “Buresh Bottom Line”: Always be prepared!.....First Alert Hurricane Survival Guide... City of Jacksonville Preparedness Guide... Georgia Hurricane Guide.

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REMEMBER WHEN A TROPICAL STORM OR HURRICANE IS APPROACHING: Taping windows is *NOT* helpful & will not keep glass from breaking.

Realize the forecast cone (”cone of uncertainty”) is the average forecast error over a given time - out to 5 days - & *does not* indicate the width of the storm &/or damage that might occur.

Tropics:

* “Disturbed weather” (disorganized showers & t’storms) continues over the far W. Caribbean. This looks to be an area - W. Caribbean/Yucatan/Bay of Campeche, SW Gulf - to keep an eye on. Heavy rain will continue over parts of Central America/the Yucatan Peninsula. Strong upper level high pressure over the U.S. will continue to steer any potential tropical “trouble” over/near the Caribbean/S. Gulf to the west.

* A strong tropical wave has also emerged off the coast of Africa. It doesn’t look like this wave will have much potential over at least the next several days.

* 50 years ago - June 19, 1972 - one of the few June hurricanes to make a U.S. landfall came ashore near Panama City, FL as Cat. 1 “Agnes” developing into a flooding disaster for parts of the Eastern U.S. as far north as New York. The hurricane produced flooding & tornadoes across Florida & Agnes remains one of the costliest U.S. disasters on record.

Wind shear analysis shows winds out of the west at more than 50 mph! over parts of the Southern Gulf & N. Caribbean:

The location of development of tropical systems in June since 1851 generally favors the NW Caribbean, Gulf of Mexico & far Western Atlantic:


Saharan dust is spread west each year from Africa by the prevailing winds (from east to west over the Atlantic). Dry air - yellow/orange/red/pink. Widespread dust is indicative of dry air that can impede the development of tropical cyclones. However, sometimes “wanna’ be” waves will just wait until they get to the other side of - or away from - the plume then try to develop if other conditions are favorable. In my personal opinion, way too much is made about the presence of Saharan dust & how it relates to tropical cyclones. In any case, we’ve already has a couple of dust plumes spread west to the Caribbean & Gulf with the peak of Saharan dust typically in June & July.

2022 names..... “Alex” was the first name on the Atlantic list (names are picked at random by the World Meteorological Organization... repeat every 6 years... “Bonnie” is next. Historic storms are retired [Florence & Michael in ’18... Dorian in ’19 & Laura, Eta & Iota in ‘20 & Ida in ‘21]). The WMO decided - beginning last year - that the Greek alphabet will be no longer used & instead there will be a supplemental list of names if the first list is exhausted (has only happened three times - 2005, 2020 & 2021). The naming of tropical cyclones began on a consistent basis in 1953. More on the history of naming tropical cyclones * here *.

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 over the Gulf, Caribbean & deep tropical Atlantic:

Sea surface temp. anomalies:

SE U.S. surface map:

Surface analysis centered on the tropical Atlantic:

Surface analysis of the Gulf:

Caribbean:

GFS wave forecast at 48 & 72 hours (2 & 3 days):

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

The East Pacific:

Poorly organized “Celia” has joined weakening “Blas” over the far East Pacific. Blas will continue to weaken while Celia battles shear while moving slowly west away from Central America. If Celia can survive the shear, strengthening will be possible mid to late week as the system moves west then gradually turns more northwest.

West Pacific IR satellite:

Global tropical activity:



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