1 31 05 02 12 20
SECURITE
WEATHER AND SEA BULLETIN ISSUED 11/AUG/2026 1200Z
DATE AND TIME UTC
PRESSURE HPA
WINDS BEAUFORT SCALE
WAVES HEIGHT METER
PART ONE WARNINGS
WARNING NR 509/2026
HIGH SURF WARNING
ISSUED AT 1500 08/AUG/2026
HIGH SURF BETWEEN ILHABELA/SP AND SAO JOAO DA BARRA/RJ
STARTING AT 102100. WAVES S 2.5.
VALID UNTIL 120300.
WARNING NR 512/2026
VERY ROUGH SEA WARNING-ALTO
ISSUED AT 1500 08/AUG/2026
OCEANIC AREA BETWEEN 36S048W, 25S040W, 27S020W AND
36S020W STARTING AT 082100. WAVES NW/W BECOMING W/SW,
4.0/7.0.
VALID UNTIL 120000.
THIS WARNING REPLACES THE WARNING NR 505/2026.
WARNING NR 515/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1330 SUN 09/AUG/2026
OCEANIC AREA BETWEEN 29S049W, 23S042W, 26S038W AND
31S043W STARTING AT 091200. WAVES SW/S 3.0/6.0.
VALID UNTIL 121200.
WARNING NR 516/2026
ROUGH SEA WARNING
ISSUED AT 1330 SUN 09/AUG/2026
OCEANIC AREA BETWEEN 26S038W, 23S042W, 19S038W AND
21S033W STARTING AT 101200. WAVES SW/S 3.0/4.0.
VALID UNTIL 121200.
WARNING NR 517/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1330 SUN 09/AUG/2026
OCEANIC AREA BETWEEN 30S045W, 30S023W, 36S020W AND
36S048W STARTING AT 090000. WIND NW/W BACK TO NW/SW 8
WITH GUSTS 9.
VALID UNTIL 121200.
THIS WARNING REPLACES THE WARNING NR 511/2026.
WARNING NR 518/2026
HIGH SURF WARNING
ISSUED AT 1300 MON 10/AUG/2026
HIGH SURF BETWEEN MOSTARDAS/RS AND TRAMANDAI/RS STARTING
AT 111100. WAVES S 2.5 .
VALID UNTIL 140000.
WARNING NR 519/2026
ROUGH/VERY ROUGH SEA WARNING
ISSUED AT 1300 MON 10/AUG/2026
OCEANIC AREA BETWEEN 34S053W, 36S048W, 31S043W AND
29S048W.
WAVES S 3.0/6.0 .
VALID UNTIL 121800.
THIS WARNING REPLACES THE WARNING NR 514/2026.
WARNING NR 520/2026
VERY ROUGH/HIGH SEA WARNING
ISSUED AT 1300 MON 10/AUG/2026
OCEANIC AREA BETWEEN 36S048W, 22S033W, 27S020W AND
36S020W STARTING AT 120000. WAVES SW/S 4.0/7.0
VALID UNTIL 140000.
WARNING NR 522/2026
ROUGH SEA WARNING
ISSUED AT 2000 MON 10/AUG/2026
OCEANIC AREA BETWEEN 18S038W, 16S036W, 17S033W AND
21S033W STARTING AT 111800.
WAVES S 3.0/3.5.
VALID UNTIL 130000.
THIS WARNING REPLACES THE WARNING NR 521/2026.
WARNING NR 523/2026
ROUGH SEA WARNING
ISSUED AT 1300 TUE 11/AUG/2026
OCEANIC AREA BETWEEN 34S053W, 36S048W, 31S043W AND
29S048W PARTIR DE 131800. WAVES SE/E 3.0/4.0.
VALID UNTIL 150000.
WARNING NR 524/2026
GALE/SEVERE GALE WARNING
ISSUED AT 1300 TUE 11/AUG/2026
OCEANIC AREA BETWEEN 30S040W, 36S040W, 36S020W AND
30S020W STARTING AT 130000. WIND W/SW 8 WITH GUSTS 9.
VALID UNTIL 150000.
PART TWO WEATHER ANALYSIS AT 111200
C-FRONT 17S038W, 21S028W AND 27S020W MOVING TO E/NE AT 5
KT. TROPICAL WAVE 18N054W, 13N055W AND 08N054W MOVING TO
W AT 10 KT. TROPICAL WAVE 18N035W, 12N036W AND 07N035W
MOVING TO W AT 10 A 15 KT.
INTERTROPICAL CONVERGENCE ZONE (ITCZ) 10N020W, 09N030W,
10N040W AND 08N050W.
PART THREE WEATHER FCST VALID FM 120000 TO 130000
AREA ALFA (FM CHUI TO LAGUNA)
OCNL HVY SHWRS AND ISOL THUNDERSTORMS N OF 30S. WIND
SW/S BACK E/NE 2/4. WAVES SW/S 2.5/3.5 WITH SURGE N OF
MOSTARDAS/RS. VIS MOD/POOR DURING SHWRS.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
OCNL HVY SHWRS AND ISOL THUNDERSTORMS S OF 25S AND W OF
045W. WIND S/SE 2/3 BACK E/NE 3/5. WAVES SW/S 2.5/3.5.
VIS MOD/POOR DURING SHWRS.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
OCNL HVY SHWRS AND ISOL THUNDERSTORMS S OF 28S. WIND
S/SE BACK E/NE, 2/4. WAVES SW/SE 2.0/2.5. VIS MOD/POOR
DURING SHWRS.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
WIND S/SE BACK E/NE, 3/4. WAVES S/SE 2.0/3.0. VIS GOOD.
AREA ECHO (FM CARAVELAS TO SALVADOR)
SHWRS N OF 15S. WIND S/SE 3/5. WAVES SW/S 2.5/3.5. VIS
MOD DURING SHWRS.
AREA FOXTROT (FM SALVADOR TO NATAL)
SHWRS. WIND SE/E 3/4. WAVES S/SE 1.5/2.5. VIS MOD DURING
SHWRS.
AREA GOLF (FM NATAL TO SAO LUIS)
WIND SE/E 3/5 WITH GUSTS 6 NEAR THE COAST. WAVES SE/E
1.0/2.0. VIS GOOD.
AREA HOTEL (FM SAO LUIS TO OIAPOQUE)
WIND SE/E 2/3. WAVES E/NE 0.5/1.5. VIS GOOD.
SOUTH OCEANIC AREA
S OF 30S W OF 030W
WIND W/SW 5/6 WITH GUSTS 8 E OF 040W. WAVES SW/S
4.0/6.0. VIS GOOD.
S OF 30S E OF 030W
SHWRS. WIND W/SW 7/8 WITH GUSTS 9. WAVES W/SW 5.0/7.0.
VIS MOD DURING SHWRS.
BETWEEN 30S AND 25S
WIND W/SW 5/6 WITH GUSTS 7/8. WAVES W/SW 4.0/6.0. VIS
GOOD.
N OF 25S
ISOL SHWRS N OF 20S. WIND S/SE 4/5. WAVES SW/SE, 1.5/2.5
BECMG 2.5/4.5 S OF 20S. VIS MOD DURING SHWRS.
NORTH OCEANIC AREA
SHWRS N OF 05N. WIND SE/E 2/4 S OF EQUATOR AND SW/SE
ELSE, 3/5. WAVES S/SE 1.5/2.5. VIS MOD DURING SHWRS.
WEATHER FCST VALID FM 130000 TO 140000
AREA ALFA (FM CHUI TO LAGUNA)
WIND SE/NE 4/5. WAVES S/SE 2.5/3.5.
AREA BRAVO (FM LAGUNA TO ARRAIAL DO CABO OCEANIC)
WIND NE/N BACK S/SE 3/4. WAVES S/SE 2.5/3.5.
AREA CHARLIE (FM LAGUNA TO ARRAIAL DO CABO SHORE)
WIND NE/N BACK S/SE 2/4. WAVES S/SE 2.0/3.0 BECMG
1.5/2.5.
AREA DELTA (FM ARRAIAL DO CABO TO CARAVELAS)
WIND NE/NW 3/4. WAVES S/SE 2.0/3.0.
AREA ECHO (FM CARAVELAS TO SALVADOR)
WIND S/SE 2/3. WAVES S/SE 2.0/3.5.
AREA FOXTROT (FM SALVADOR TO NATAL)
WIND SE/E 3/4. WAVES S/SE 1.5/2.5.
AREA GOLF (FM NATAL TO SAO LUIS)
WIND SE/NE 3/5 WITH GUSTS 6/7 NEAR THE COAST. WAVES
SE/NE 1.0/2.0.
AREA HOTEL (FM SAO LUIS TO OIAPOQUE)
WIND SE/E 3/4. WAVES E/NE 0.5/1.5.
SOUTH OCEANIC AREA
S OF 30S W OF 030W
WIND SW/SE 5/6 WITH GUSTS 8/9. WAVES SW/S 3.5/5.5.
S OF 30S E OF 030W
WIND NW/W 6/7 WITH GUSTS 8/9. WAVES SW/S 4.5/6.0.
BETWEEN 30S AND 25S
WIND W/SW 3/5. WAVES SW/S 3.0/4.5.
N OF 25S
WIND SE/E BACK NE/NW, 2/4. WAVES SW/SE 2.5/3.5.
NORTH OCEANIC AREA
WIND SE/E 2/4 S OF EQUATOR AND SW/SE ELSE, 3/5. WAVES
S/SE 1.5/2.5.=