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SECURITE
WEATHER AND SEA BULLETIN ISSUED 22/AUG/2026 1200Z
DATE AND TIME UTC
PRESSURE HPA
WINDS BEAUFORT SCALE
WAVES HEIGHT METER
PART ONE WARNINGS
WARNING NR 552/2026
ROUGH SEA WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 25S044W, 26S038W, 31S043W AND
29S049W STARTING AT 210600. WAVES NE/NW BECOMING SW/S,
3.0/4.0.
VALID UNTIL 230000.
WARNING NR 557/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 30S030W, 30S020W, 36S020W AND
36S030W STARTING AT 211500. WIND NW/W 8 WITH GUSTS 9.
VALID UNTIL 230000.
WARNING NR 558/2026
VERY ROUGH SEA WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 36S030W, 36S020W, 32S020W AND
32S030W STARTING AT 220000. WAVES NW/W 4.0/5.0.
VALID UNTIL 230000.
WARNING NR 559/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 34S052W, 36S048W, 31S043W AND
29S048W STARTING AT 221200. WAVES SW/S 3.0/6.0 .
VALID UNTIL 231200.
WARNING NR 560/2026
HIGH SURF WARNING
ISSUED AT 1400 THU 20/AUG/2026
HIGH SURF BETWEEN TORRES/RS AND FLORIANOPOLIS/SC
STARTING AT 211500. WAVES SW/SE 2.5/3.0.
VALID UNTIL 221800.
WARNING NR 561/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
COASTAL AREA BETWEEN CHUI/RS AND LAGUNA/SC TO 300 NM
OFFSHORE STARTING AT 211200. WIND SW/S 7/8 WITH GUSTS.
VALID UNTIL 231200.
THIS WARNING REPLACES THE WARNING NR 550/2026.
WARNING NR 562/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 26S046W, 28S040W, 31S043W AND
29S049W STARTING AT 220600. WIND W/SW 7/8 WITH GUSTS.
VALID UNTIL 231200.
WARNING NR 563/2026
ROUGH-VERY ROUGH SEA WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 28S048W, 29S048W, 31S043W AND
28S040W STARTING AT 230600. WAVES SW/S 3.0/5.0.
VALID UNTIL 241200.
WARNING NR 566/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 30S042W, 30S030W, 36S030W AND
36S048W STARTING AT 221200. WIND NW/SW 8/9 WITH GUSTS.
VALID UNTIL 241200.
WARNING NR 567/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 30S030W, 30S020W, 36S020W AND
36S030W STARTING AT 231200. WIND NW/W 8/9 WITH GUSTS.
VALID UNTIL 241200.
WARNING NR 569/2026
HIGH SURF WARNING
ISSUED AT 1400 FRI 21/AUG/2026
HIGH SURF BETWEEN MOSTARDAS/RS AND FLORIANOPOLIS/SC
STARTING AT 231500. WAVES S/SE 2.5/3.0 .
VALID UNTIL 241500.
WARNING NR 570/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 34S053W, 29S049W, 31S043W AND
36S048W STARTING AT 231200. WIND SW 7/8.
VALID UNTIL 240300.
WARNING NR 571/2026
ROUGH SEA WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 34S052W, 36S048W, 31S043W AND
29S048W STARTING AT 231200. WAVES SW/S 3.0/5.0 .
VALID UNTIL 251200.
WARNING NR 572/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 26S046W, 28S040W, 31S043W AND
29S049W STARTING AT 231200. WIND W/SW 7/8.
VALID UNTIL 241200.
THIS WARNING REPLACES THE WARNING NR 562/2026.
WARNING NR 573/2026
VERY ROUGH SEA WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 36S030W, 36S020W, 30S020W AND
30S030W STARTING AT 240000. WAVES W/SW 4.0/6.0 .
VALID UNTIL 251200.
WARNING NR 575/2026
VERY ROUGH SEA WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 36S048W, 36S030W, 30S030W AND
30S042W STARTING AT 221200. WAVES W/SW 4.0/6.0 .
VALID UNTIL 251200.
THIS WARNING REPLACES THE WARNING NR 568/2026.
WARNING NR 576/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1400 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 28S048W, 31S043W, 26S038W AND
23S042W STARTING AT 241200. WAVES SW/SE 3.0/5.0 .
VALID UNTIL 261200.
WARNING NR 577/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1400 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 29S049W, 25S047W, 24S045W AND
23S042W STARTING AT 240000. WAVES SW/SE 3.0/4.0 .
VALID UNTIL 251200.
WARNING NR 578/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1400 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 30S042W, 30S030W, 36S030W AND
36S048W STARTING AT 241200. WIND W/SW 8 WITH GUSTS 9.
VALID UNTIL 261200.
THIS WARNING REPLACES THE WARNING NR 574/2026.
WARNING NR 579/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1400 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 30S030W, 30S020W, 36S020W AND
36S030W STARTING AT 241200. WIND NW/W 8 WITH GUSTS 9.
VALID UNTIL 261200.
WARNING NR 580/2026
VERY ROUGH SEA WARNING
ISSUED AT 1400 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 30S042W, 27S039W, 27S020W AND
30S020W STARTING AT 231200. WAVES W/SW 4.0/5.0 .
VALID UNTIL 251200.
WARNING NR 581/2026
ROUGH SEA WARNING
ISSUED AT 1500 SAT 22/AUG/2026
OCEANIC AREA BETWEEN 23S042W, 20S036W, 21S035W AND
26S038W STARTING AT 240600. WAVES SW/S 3.0/4.0 .
VALID UNTIL 251200.
PART TWO WEATHER ANALYSIS AT 221200
HIGH 1030 31S060W. C-FRONT 19S039W, 28S029W AND 39S020W
MOVING TO E/NE AT 5 KT.
INTERTROPICAL CONVERGENCE ZONE (ITCZ) 06N020W, 07N030W,
08N040W AND 07N055W.
PART THREE WEATHER FCST VALID FM 230000 TO 240000
AREA ALFA (FM CHUI TO LAGUNA)
SHWRS E OF 050W. WIND SW/S 5/6 WITH GUSTS 7/8. WAVES
SW/S, 2.5/4.5 BECMG 3.0/6.0, WITH SURGE N OF MOSTARDAS
(RS) FM 231500Z. VIS MOD DURING SHWRS.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
WIND SW/S 4/6 WITH GUSTS 7/8. WAVES SW/S, 3.0/5.0 S OF
26S AND 2.0/3.0 ELSE. VIS GOOD.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
WIND SE/E 2/4. WAVES SW/S 1.5/3.0, WITH SURGE S OF
FLORIANOPOLIS (SC) FM 231500Z. VIS GOOD.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
SHWRS N OF 22S. WIND SW/SE BACK SE/NE, 2/4. WAVES SW/S
1.5/3.0. VIS MOD DURING SHWRS.
AREA ECHO (FM CARAVELAS TO SALVADOR)
ISOL SHWRS. WIND SE/NE 2/4. WAVES SW/SE 1.0/1.5. VIS
MOD DURING SHWRS.
AREA FOXTROT (FM SALVADOR TO NATAL)
ISOL SHWRS. WIND SE/E 3/5. WAVES SE/E 1.0/2.0. VIS MOD
DURING SHWRS.
AREA GOLF (FM NATAL TO SAO LUIS)
ISOL SHWRS. WIND SE/NE 4/5 WITH GUSTS 6/7 NEAR THE
COAST. WAVES SE/NE 1.5/2.0. VIS MOD DURING SHWRS.
AREA HOTEL (FM SAO LUIS TO OIAPOQUE)
ISOL SHWRS. WIND SE/NE 3/5. WAVES SE/NE, 0.5/1.5 NEAR
THE COAST AND 1.5/2.0 ELSE. VIS MOD DURING SHWRS.
SOUTH OCEANIC AREA
S OF 30S W OF 030W
OCNL HVY SHWRS AND ISOL THUNDERSTORMS. WIND NW/SW 7/8
WITH GUSTS 9. WAVES NW/SW, 3.0/4.0 BECMG 4.0/6.0. VIS
MOD/POOR DURING SHWRS.
S OF 30S E OF 030W
OCNL HVY SHWRS AND ISOL THUNDERSTORMS. WIND NW/SW, 3/5
BECMG 7/8 WITH GUSTS 9. WAVES NW/SW 2.5/3.5 BECMG
3.0/5.0. VIS MOD/POOR DURING SHWRS.
BETWEEN 30S AND 25S
OCNL HVY SHWRS AND ISOL THUNDERSTORMS E OF 030W. WIND
NW/SW 4/5 WITH GUSTS 6/7. WAVES NW/SW, 1.5/3.0 BECMG
2.5/5.0. VIS MOD/POOR DURING SHWRS.
N OF 25S
ISOL SHWRS S OF 24S. WIND SE/NE BACK NE/NW, 2/4. WAVES
SE/E BECMG SW/S, 1.0/2.0. VIS MOD DURING SHWRS.
NORTH OCEANIC AREA
OCNL HVY SHWRS AND ISOL THUNDERSTORMS N OF 01N. WIND
SE/E 3/5 S OF 03N AND SW/SE 2/4 ELSE. WAVES S/SE
1.0/2.0. VIS MOD/POOR DURING SHWRS.
WEATHER FCST VALID FM 240000 TO 250000
AREA ALFA (FM CHUI TO LAGUNA)
WIND SW/S, 5/6 WITH GUSTS 7/8, BECMG 3/5. WAVES SW/S,
3.0/5.5 BECMG 2.0/4.0, WITH SURGE N OF MOSTARDAS (RS)
TO 241500Z.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
WIND SW/S 4/6 WITH GUSTS 7/8 BACK S/SE 2/4. WAVES SW/S
2.5/5.0.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
WIND SE/E 2/4. WAVES SW/S, 1.5/3.0 BECMG 2.5/4.0, WITH
SURGE S OF FLORIANOPOLIS (SC) TO 241500Z.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
WIND SE/NE, 2/4 BECMG 3/5. WAVES SW/S, 1.5/3.0 BECMG
2.0/4.0.
AREA ECHO (FM CARAVELAS TO SALVADOR)
WIND SE/NE 2/4. WAVES SW/SE 1.0/1.5.
AREA FOXTROT (FM SALVADOR TO NATAL)
WIND SE/E 3/5. WAVES SE/E BECMG SW/SE, 1.0/2.0.
AREA GOLF (FM NATAL TO SAO LUIS)
WIND SE/NE 4/5 WITH GUSTS 6/7 NEAR THE COAST. WAVES
SE/NE 1.5/2.5.
AREA HOTEL (FM SAO LUIS TO OIAPOQUE)
WIND SE/NE 3/5. WAVES SE/NE, 0.5/1.5 NEAR THE COAST AND
1.5/2.0 ELSE.
SOUTH OCEANIC AREA
S OF 30S W OF 030W
WIND NW/SW 7/8 WITH GUSTS 9. WAVES W/SW 3.0/5.0.
S OF 30S E OF 030W
WIND NW/W 5/6 BECMG 7/9. WAVES W/SW, 2.5/4.5 BECMG
3.5/6.0.
BETWEEN 30S AND 25S
WIND NW/SW 4/5 WITH GUSTS 6/7. WAVES W/SW, 2.0/3.0
BECMG 2.5/5.0.
N OF 25S
WIND NE/NW S OF 20S AND E/NE ELSE, 2/4. WAVES SE/E
BECMG SW/S, 1.5/3.5.
NORTH OCEANIC AREA
WIND SE/E 3/5 S OF 03N AND SW/SE 2/4 ELSE. WAVES S/SE
BECMG SW/S, 1.0/2.0.
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