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SECURITE
WEATHER AND SEA BULLETIN ISSUED 21/AUG/2026 1200Z
DATE AND TIME UTC
PRESSURE HPA
WINDS BEAUFORT SCALE
WAVES HEIGHT METER
PART ONE WARNINGS
WARNING NR 548/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 34S052W, 36S048W, 31S043W AND
29S048W STARTING AT 210600. WAVES NW/SW BECOMING SW/S,
3.0/5.0.
VALID UNTIL 221200.
WARNING NR 550/2026
NEAR GALE/GALE WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 34S053W, 36S048W, 31S043W AND
29S049W STARTING AT 211200. WIND SW/S 7 WITH GUSTS 8.
VALID UNTIL 221200.
WARNING NR 551/2026
NEAR GALE/GALE WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 23S042W, 26S038W, 31S043W AND
29S049W STARTING AT 210000. WIND NW/SW 7 WITH GUSTS 8.
VALID UNTIL 220600.
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 556/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1300 WED 19/AUG/2026
OCEANIC AREA BETWEEN 30S042W, 30S030W, 36S030W AND
36S048W STARTING AT 210000. WIND NW/SW 8 WITH GUSTS 9.
VALID UNTIL 221200.
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 564/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
COASTAL AREA BETWEEN LAGUNA/SC AND ARRAIAL DO CABO/RJ
TO 120 NM OFFSHORE STARTING AT 210900. WIND SW/S 7/8
WITH GUSTS.
VALID UNTIL 220000.
WARNING NR 565/2026
NEAR GALE/GALE WARNING
ISSUED AT 1400 THU 20/AUG/2026
COASTAL AREA BETWEEN ARRAIAL DO CABO/RJ AND VITORIA/ES
TO 300 NM OFFSHORE STARTING AT 210000. WIND NE/NW BACK
TO SW/S, 7/8 WITH GUSTS.
VALID UNTIL 220300.
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 568/2026
VERY ROUGH SEA WARNING
ISSUED AT 1400 THU 20/AUG/2026
OCEANIC AREA BETWEEN 36S048W, 36S030W, 30S030W AND
30S042W STARTING AT 221200. WAVES W/SW 4.0/6.0.
VALID UNTIL 231200.
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 574/2026
GALE WARNING
ISSUED AT 1400 FRI 21/AUG/2026
OCEANIC AREA BETWEEN 36S045W, 30S040W, 30S020W AND
36S020W STARTING AT 241200. WIND NW/SW 8 WITH GUSTS 9.
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.
PART TWO WEATHER ANALYSIS AT 211200
TROUGH 36S043W, 34S043W AND 33S051W. C-FRONT 38S037W,
26S042W AND 18S055W MOVING TO E/NE AT 10 KT.
INTERTROPICAL CONVERGENCE ZONE (ITCZ) EM 10N020W,
10N030W, 11N040W AND 10N050W.
PART THREE WEATHER FCST VALID FM 220000 TO 230000
AREA ALFA (FM CHUI TO LAGUNA)
ISOL SHWRS. WIND SW/S 5/6 WITH GUSTS 7/8. WAVES SW/S
2.5/4.5, WITH SURGE N OF TORRES (RS) TO 221800Z. VIS
MOD DURING SHWRS.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
ISOL SHWRS. WIND SW/S 5/6 WITH GUSTS 7/8 BECMG 4/5 WITH
GUSTS 6/7 . WAVES SW/S 3.0/4.0 S OF 26S AND NE/NW
1.5/2.5 BECMG SW/S 2.5/3.0 N OF 26S. VIS MOD DURING
SHWRS.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
ISOL SHWRS NEAR THE COAST. WIND SW/S 4/5 BACK S/SE 2/4.
WAVES SW/SE, 1.5/2.5 NEAR THE COAST, WITH SURGE S OF
FLORIANOPOLIS (SC) TO 231800Z, AND 2.0/3.0 ELSE. VIS
MOD DURING SHWRS.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
ISOL SHWRS. WIND NE/NW BACK NW/SW, 4/5, WITH GUSTS 7
EARLY. WAVES NE/NW 1.5/2.5. VIS MOD DURING SHWRS.
AREA ECHO (FM CARAVELAS TO SALVADOR)
ISOL SHWRS. WIND NE/N BACK SE/NE, 2/4. WAVES SE/E
1.0/1.5. VIS MOD DURING SHWRS.
AREA FOXTROT (FM SALVADOR TO NATAL)
ISOL SHWRS. WIND SE/NE 3/5. WAVES SE/E 1.0/1.5. VIS MOD
DURING SHWRS.
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. VIS GOOD.
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 E OF 040W AND
ISOL SHWRS ELSE. WIND NW/SW 7/8 WITH GUSTS 9. WAVES
NW/SW 3.0/4.0, BECMG 3.5/5.0 W OF 040W. VIS MOD/POOR
DURING SHWRS.
S OF 30S E OF 030W
OCNL HVY SHWRS AND ISOL THUNDERSTORMS. WIND NW/SW, 7/8
WITH GUSTS 9 BECMG 4/5 WITH GUSTS 6/7. WAVES NW/SW
2.0/4.0. VIS MOD/POOR DURING SHWRS.
BETWEEN 30S AND 25S
OCNL HVY SHWRS AND ISOL THUNDERSTORMS BETWEEN 035W AND
025W AND ISOL SHWRS ELSE. WIND NW/SW 4/5 WITH GUSTS
6/7. WAVES NW/SW, 2.0/3.0 W OF 025W AND 1.0/2.0 ELSE.
VIS MOD/POOR DURING SHWRS.
N OF 25S
ISOL SHWRS W OF 025W. WIND SE/NE BACK NE/NW, 2/4. WAVES
SW/SE 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 SW/SE
1.0/2.0. VIS MOD/POOR DURING SHWRS.
WEATHER FCST VALID FM 230000 TO 240000
AREA ALFA (FM CHUI TO LAGUNA)
WIND SW/S 5/6 WITH GUSTS 7/8. WAVES SW/SE 2.0/3.0 NEAR
THE COAST, WITH SURGE N OF MOSTARDAS (RS) PARTIR
231500Z, AND 3.0/6.0 ELSE.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
WIND SW 5/6 WITH GUSTS 7/8 S OF 27S AND SW/SE 3/5 ELSE.
WAVES SW/S, 2.5/3.5 BECMG 3.5/4.5 S OF 28S AND 2.0/3.0
ELSE.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
WIND S/SE 2/4. WAVES SW/SE, 1.5/3.0, WITH SURGE S OF
FLORIANOPOLIS (SC) PARTIR DE 231500Z.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
WIND NW/SW BACK SE/NE, 3/4. WAVES NE/NW BECMG SW/S,
1.5/2.5.
AREA ECHO (FM CARAVELAS TO SALVADOR)
WIND SE/NE 2/4. WAVES SE/E NEAR THE COAST AND SE BECMG
SW/S ELSE, 1.0/1.5.
AREA FOXTROT (FM SALVADOR TO NATAL)
WIND SE/E 3/4. WAVES SE/E 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 1.5/2.0.
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 BECMG
4.0/6.0.
S OF 30S E OF 030W
WIND NW/SW 3/5 BECMG 6/8 WITH GUSTS 9. WAVES NW/SW
2.5/4.5.
BETWEEN 30S AND 25S
WIND NW/SW 4/5 WITH GUSTS 6. WAVES NW/SW, 2.0/3.0 BECMG
2.5/4.0 W OF 030W AND 1.5/2.5 ELSE.
N OF 25S
WIND NE/NW S OF 20S AND E/NE N OF 20S, 2/4. WAVES SW/SE
1.0/2.0.
NORTH OCEANIC AREA
WIND SE/E 3/5 S OF 03N AND SW/SE 2/4 ELSE. WAVES SW/SE
1.0/2.0.=