SATL: Akará - Post-Tropical

[Sciencerocks]

[rodolfo alves]

WPC/NOAA

[rodolfo alves]

[Sciencerocks]

Tight LLC
Fairly tight windfield
convection being sheared by sustained and generated close to the core.

Sure, there might still be a frontal boundary to the northeast but once that fades this should become a tropical cyclone if not already one.

This has a decent chance at being within the top 10 for the south Atlantic. We'll see if we can get a cane!!! Probably borderline on that.

[rodolfo alves]

WARNING NR 076/2024
SPECIAL WARNING
ISSUED AT 0000Z – SAT – 17/FEB/2024
SUBTROPICAL DEPRESSION WITH CENTRAL PRESSURE 1008 HPA AT 24.5S039W, MOVING SOUTHWARD WITH ESTIMATED
MAXIMUM WINDS FORCE 7 (28/33 KT) WITH GUSTS FORCE 8 (40 KT) ON EAST SECTOR AND ROUGH/VERY ROUGH SEA
ASSOCIATED WITH WAVES 3.0/5.0 METERS OFFSHORE AFFECTING BRAVO, DELTA AND SOUTH OCEANIC AREAS.

ESTIMATED POSITION:
170600Z: 25S 039W – 1006 HPA – MAXIMUM SUSTAINED WIND 25/30 KT – SUBTROPICAL DEPRESSION
171200Z: 25.5S 039W – 1006 HPA – MAXIMUM SUSTAINED WIND 33/40 KT – SUBTROPICAL STORM
171800Z: 25.5S 039W – 1004 HPA – MAXIMUM SUSTAINED WIND 33/40 KT – SUBTROPICAL STORM
180000Z: 26S 039.5W – 1002 HPA – MAXIMUM SUSTAINED WIND 33/40 KT – TROPICAL STORM
180600Z: 26.5S 040W – 1000 HPA – MAXIMUM SUSTAINED WIND 33/40 KT – TROPICAL STORM
181200Z: 27S 040.5W – 1000 HPA – MAXIMUM SUSTAINED WIND 33/40 KT – TROPICAL STORM
VALID UNTIL 220000Z.
THIS WARNING REPLACES THE WARNING NR 072/2024.

[Sciencerocks]

[cycloneye]

Trying to organize.

[jaguarjace]

https://www.force-13.com/satellite?flt=01Q

[cycloneye]

[rodolfo alves]

WARNING NR 081/2024
SPECIAL WARNING
ISSUED AT 1300Z – SAT – 17/FEB/2024
SUBTROPICAL DEPRESSION WITH CENTRAL PRESSURE 1006 HPA AT 25S039W, MOVING TO SOUTHWARD WITH
ESTIMATED MAXIMUM WINDS FORCE 7 (28/33 KT) WITH GUSTS FORCE 8 (40 KT) ON EAST SECTOR AND ROUGH
SEA ASSOCIATED WITH WAVES 3.0/4.0 METERS OFFSHORE AFFECTING BRAVO AND SOUTH OCEANIC AREAS.

ESTIMATED POSITION:
171800Z: 25.5S 039W – 1004 HPA – MAXIMUM SUSTAINED WIND 25/30 KT – SUBTROPICAL DEPRESSION
180000Z: 25.5S 039.5W – 1004 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
180600Z: 26S 040W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
181200Z: 26.5S 040.5W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
181800Z: 27.5S 041W – 1000 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
190000Z: 28.5S 041.5W – 998 HPA – MAXIMUM SUSTAINED WIND 40/45 KT – TROPICAL STORM
VALID UNTIL 220000Z.
THIS WARNING REPLACES THE WARNING NR 076/2024.

[Sciencerocks]

[rodolfo alves]

[rodolfo alves]

WARNING NR 082/2024
SPECIAL WARNING
ISSUED AT 1500Z – SAT – 17/FEB/2024
SUBTROPICAL DEPRESSION WITH CENTRAL PRESSURE 1006 HPA AT 25S039W, MOVING TO SOUTHWARD
WITH ESTIMATED MAXIMUM WINDS FORCE 7 (28/33 KT) WITH GUSTS FORCE 8 (40 KT) ON EAST SECTOR
AND ROUGH SEA ASSOCIATED WITH WAVES 3.0/4.0 METERS OFFSHORE AFFECTING BRAVO AND SOUTH
OCEANIC AREAS.

ESTIMATED POSITION:
171800Z: 25.5S 039W – 1004 HPA – MAXIMUM SUSTAINED WIND 25/30 KT – SUBTROPICAL DEPRESSION
180000Z: 25.5S 039.5W – 1004 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
180600Z: 26S 040W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
181200Z: 26.5S 040.5W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
181800Z: 27.5S 041W – 1000 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
190000Z: 28.5S 041.5W – 998 HPA – MAXIMUM SUSTAINED WIND 40/45 KT – TROPICAL STORM
VALID UNTIL 220000Z.
THIS WARNING REPLACES THE WARNING NR 081/2024.

[cycloneye]

What will be the name when is classified as a SS Storm?

[Hurricane2022]

What will be the name when is classified as a SS Storm?

Akará.

[rodolfo alves]

Weather forecast on Brazilian TV talking about the formation of the Subtropical Storm.

[Sciencerocks]

 https://twitter.com/VortixWx/status/1758896532923793868

[cycloneye]

WARNING NR 082/2024
SPECIAL WARNING
ISSUED AT 1500Z – SAT – 17/FEB/2024
SUBTROPICAL DEPRESSION WITH CENTRAL PRESSURE 1006 HPA AT 25S039W, MOVING TO SOUTHWARD
WITH ESTIMATED MAXIMUM WINDS FORCE 7 (28/33 KT) WITH GUSTS FORCE 8 (40 KT) ON EAST SECTOR
AND ROUGH SEA ASSOCIATED WITH WAVES 3.0/4.0 METERS OFFSHORE AFFECTING BRAVO AND SOUTH
OCEANIC AREAS.

ESTIMATED POSITION:
171800Z: 25.5S 039W – 1004 HPA – MAXIMUM SUSTAINED WIND 25/30 KT – SUBTROPICAL DEPRESSION
180000Z: 25.5S 039.5W – 1004 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
180600Z: 26S 040W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
181200Z: 26.5S 040.5W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
181800Z: 27.5S 041W – 1000 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
190000Z: 28.5S 041.5W – 998 HPA – MAXIMUM SUSTAINED WIND 40/45 KT – TROPICAL STORM
VALID UNTIL 220000Z.
THIS WARNING REPLACES THE WARNING NR 081/2024.

You have the link to the warnings section from the Brazil folks?

[rodolfo alves]

WARNING NR 082/2024
SPECIAL WARNING
ISSUED AT 1500Z – SAT – 17/FEB/2024
SUBTROPICAL DEPRESSION WITH CENTRAL PRESSURE 1006 HPA AT 25S039W, MOVING TO SOUTHWARD
WITH ESTIMATED MAXIMUM WINDS FORCE 7 (28/33 KT) WITH GUSTS FORCE 8 (40 KT) ON EAST SECTOR
AND ROUGH SEA ASSOCIATED WITH WAVES 3.0/4.0 METERS OFFSHORE AFFECTING BRAVO AND SOUTH
OCEANIC AREAS.

ESTIMATED POSITION:
171800Z: 25.5S 039W – 1004 HPA – MAXIMUM SUSTAINED WIND 25/30 KT – SUBTROPICAL DEPRESSION
180000Z: 25.5S 039.5W – 1004 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
180600Z: 26S 040W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – SUBTROPICAL STORM
181200Z: 26.5S 040.5W – 1002 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
181800Z: 27.5S 041W – 1000 HPA – MAXIMUM SUSTAINED WIND 34/40 KT – TROPICAL STORM
190000Z: 28.5S 041.5W – 998 HPA – MAXIMUM SUSTAINED WIND 40/45 KT – TROPICAL STORM
VALID UNTIL 220000Z.
THIS WARNING REPLACES THE WARNING NR 081/2024.

You have the link to the warnings section from the Brazil folks?

Brazilian Navy in english: https://www.marinha.mil.br/chm/dados-do ... s/warnings

[cycloneye]

Will ATCF designate it as a invest / TD/ SS/ TS?

https://ftp.nhc.noaa.gov/atcf/btk/