WWST02 SABM 201200

1:31:06:01:00

SECURITE

WEATHER BULLETIN FOR SHIPPING - METAREA 6-

2026-03-20, 12:00 UTC.

NATIONAL WEATHER SERVICE

SEA ICE AND ICEBERGS ISSUED BY SHN

PRESSURE HPA

BEAUFORT SCALE WINDS.

PART 1

NO WARNINGS

PART 2 GENERAL SYNOPSIS AT 09:00UTC

LOW 1001HPA 52S 54W MOV SE DPN EXP 57S 36W BY 21/1200 EXTENDS CFNT AT 53S 50W

47S 53W 40S 64W MOV SE EXP 57S 30W 53S 34W 51S 40W BY 21/1200 ASOCIATED WITH

OFNT AT 53S 50W 54S 56W 52S 63W 49S 59W

HIGH 1018HPA 45S 39W MOV SE INTSF EXP 47S 20W BY 21/1200 EXTENDS RIDGE AT 45S

39W 35S 58W EXP 47S 20W 43S 43W 43S 43W 36S 48W BY 21/1200

HIGH 1012HPA 56S 40W MOV NE INTSF EXTENDS RIDGE AT 56S 40W 60S 41W MOV NE

191400 UTC 1.SEA ICE LIMIT 7154S 02000W 6600S 03005W 6737S 03005W 6144S 03252W

6050S 03918W 6145S 04430W 6205S 04951W 6346S 05402W 6307S 05725W 6354S 06153W

6440S 06432W 6632S 06716W 2.ICEBERGS GREATER THAN 10NM A23K 5037S 03505W 10X7NM

A76C 5900S 03619W 16X7NM 3.ICEBERGS SMALLER THAN 10NM A23A 4835S 03036W 9X7NM

ICEBERG1 5812S 03538W 3X2NM ICEBERG2 4846S 03326W 3X2NM ICEBERG3 5236S 03311W

7X2NM ICEBERG4 4722S 03117W 3X1NM ICEBERG5 4843S 03136W 4X2NM ICEBERG6 4852S

03111W 4X1NM ICEBERG7 4847S 03054W 3X2NM ICEBERG8 4846S 03034W 2X2NM 4.ICEBERGS

AREA A 7303S 02000W 4555S 02000W 4400S 03100W 4900S 04000W 6136S 04000W B 6136S

04000W 5800S 04000W 5800S 04900W 6211S 04900W C 6211S 04900W 5900S 04900W 6100S

06100W 6600S 06716W 6644S 06716W





PART 3 FORECAST ISSUED 12:00 UTC VALID UNTIL 12:00 UTC 2026-03-21

COASTAL AREAS:

INNER RIO DE LA PLATA: SECTOR E 3/6 WITH GUSTS BACK SECTOR N 5/4 WITH GUSTS PROB

OF RAIN STORMS STARTING EARLY MORNING VIS GOOD TO POOR OCNL MODERATE

OUTER RIO DE LA PLATA: SECTOR E 3/6 WITH GUSTS BACK SECTOR N 5/4 WITH GUSTS PROB

OF RAIN STORMS STARTING EARLY MORNING VIS GOOD TO POOR OCNL MODERATE

URUGUAY SOUTH EAST COASTS: NE 3/6 WITH GUSTS TOWARDS THE END OF THE PERIOD

WORSENING VIS GOOD OCNL MODERATE

MAR DEL PLATA COASTS(36�17S - 38�30S): SECTOR N 4/5 WITH GUSTS PROB OF MIST FOG

PATCHES DISSIPATING PROB OFHVY RAIN STORMS STARTING EARLY MORNING VIS MODERATE

OCNL GOOD TO POOR

RINCON BAHIA BLANCA COASTS(38�30S - 41�S): VRB 4 BACK SECTOR E BACK SECTOR S 5

WITH GUSTS PROB OF HVY RAIN STORMS STARTING EVENING VIS GOOD TO MODERATE OCNL

POOR

PENINSULA DE VALDES COASTS(41�S - 45�S): VRB 4 PROB OF SH RAIN SPELLS OF GOOD

WEATHER VIS GOOD OCNL MODERATE

GOLFO DE SAN JORGE COASTS(45�S - 48�S): SECTOR S 4 BACK SECTOR N 5/6 WITH GUSTS

PROB OF SH RAIN STARTING EARLY MORNING VIS GOOD OCNL MODERATE

SOUTH PATAGONIA COASTS(48�S - 54�S): VRB 3 VEER SECTOR N 4/6 WITH GUSTS MIST

DISSIPATING PROB OF SH RAIN STARTING EARLY MORNING VIS MODERATE OCNL GOOD

FIN DEL MUNDO COASTS(54�S - 55�S): VRB 3 VEER SECTOR N 4/5 MIST DISSIPATING PROB

OF SH RAIN STARTING EARLY MORNING VIS MODERATE OCNL GOOD

ISLAS MALVINAS COASTS: SECTOR W 4 BACK VRB 3 VEER SECTOR N 5 PROB OF SH FOG

PATCHES RAIN STARTING EARLY MORNING IMPR VIS MODERATE OCNL POOR TO GOOD



OCEANIC AREAS:

NORTH AREA (35S- 40S AND 20W- 55W) E OF 45W: SECTOR E 4 LOW PROB OF ISOL SH RAIN

VIS GOOD OCNL MODERATE

 REST OF THE AREA: SECTOR E 4 BACK SECTOR N 5 LOW PROB OF ISOL SH RAIN VIS GOOD

OCNL MODERATE

CENTRAL EAST AREA (40S- 50S AND 20W- 40W) E OF 30W: VRB 4 BACK SECTOR N LOW PROB

OF SH PROB OF MIST FOG PATCHES VIS MODERATE TO GOOD OCNL POOR

 REST OF THE AREA: VRB 4 PROB OF MIST FOG PATCHES VIS GOOD TO MODERATE OCNL

POOR

CENTRAL WEST AREA (40S- 50S AND 40W- 60W): SECTOR N 4 LOW PROB OF SH PROB OF

MIST FOG PATCHES VIS GOOD TO MODERATE OCNL POOR

SOUTH EAST AREA (50S- 60S AND 20W- 40W) E OF 30W: SW 6/5 WITH GUSTS VEER SECTOR

N 4/6 WITH GUSTS PROB OF SH RAIN STARTING NIGTH VIS MODERATE OCNL POOR

 REST OF THE AREA: VRB 4 VEER SECTOR N 5/6 WITH GUSTS BACK SECTOR W 7 WITH GUSTS

PROB OF SH FOG PATCHES RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL POOR

SOUTH WEST AREA (50S- 60S AND 40W- 60W) N OF 55 - E OF 50W: SECTOR N 6 WITH

GUSTS BACK SECTOR W 7/5 WITH GUSTS PROB OF SH FOG PATCHES RAIN DURING THE EARLY

MORNING IMPR VIS MODERATE OCNL POOR TO GOOD

 S OF 55 - E OF 50W: SECTOR N 4 VEER SECTOR S 5 PROB OF SH FOG PATCHES RAIN

DURING THE EARLY MORNING IMPR VIS MODERATE OCNL POOR TO GOOD

 REST OF THE AREA: VRB 4 VEER SECTOR N 5 PROB OF SH FOG PATCHES RAIN TOWARDS

NIGTH IMPR VIS MODERATE OCNL POOR TO GOOD

DRAKE AREA (55S- 60S AND 60W- 67W): SECTOR N 4/5 WITH GUSTS BACK SECTOR S 6 WITH

GUSTS PROB OF SH RAIN SPELLS OF GOOD WEATHER VIS MODERATE OCNL GOOD

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