IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 16th OF JULY 2024 AT 13:30 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2 BELOW.
NOTE: WX OBSERVATIONS.
======================
COULD ALL VESSELS EXPERIENCING UNEXPECTED, SEVERE WX/SEA STATE PLEASE MAKE EVERY EFFORT TO REPORT THIS TO SAWS VIA CAPE TOWN RADIO.
AREA 1:
=======
FORECAST VALID FROM 162200 TO 172200 UTC:
WIND IN KNOTS, WAVE HEIGHTS IN METERS. NO SEA STATE GIVEN IF WAVES LESS THAN 3M.
NOTE THE WIND SPEEDS QUOTED HERE ARE THE EXPECTED AVERAGE SPEEDS.
INDIVIDUAL GUSTS MAY EXCEED THESE VALUES BY A FACTOR OF UP TO 1.5.
WAVE HEIGHTS ARE SIGNIFICANT WAVE HEIGHTS, WHICH MAY BE ACCOMPANIED BY INDIVIDUAL WAVES 1.5 TO 2.0 TIMES HIGHER.
GALE FORCE WARNINGS:
====================
1. CAPE EAST: W to NW 35 in the south-east at first.
SYNOPTIC CHART 06:00Z
======================
Low 1010 hPa 42s22e
Low 998 hPa 45s08w
Low 990 hPa 47s45e
Low 992 hPa 44s42e
Cold Front: 37s17w 42s08w into 45s08w.
Cold Front: 28s12w 43s04e into 47s45e cont. 52s08e 57s09e.
Cold Front: 27s48e 32s52e 37s56e 42s57e 47s54e into 44s42e.
AREA FORECAST:
==============
CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to NW 15 to 25, reaching 35 in the south-east at first, but
SW 10 to 20 over the central part.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the south-east until mid-
period, S to SW swell, but SE over the south-central parts.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the north-west, otherwise W to NW 10 to
20, becoming N to NE 15 to 25 in the extreme west by the end
of the period.
VIS : Moderate in showers and rain in the east.
SEA STATE: 3.0m in the extreme south-east, SW swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the extreme south, otherwise E to SE 10
to 20.
VIS : Good.
MADAGASCAR EAST:
WIND : S to SE 20 to 30, but N to NE 10 to 20 in the south, but
NW 10 to 15 in the extreme south.
VIS : Moderate in showers in places.
SEA STATE: 3.0m in the extreme north, E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Cyclonic 15 to 25 in the north-east at first, spreading to the
south-east by mid-period, otherwise S to SW 15 to 25, becoming
N to NW 10 to 20.
VIS : Moderate to poor in showers and rain, but good in the west.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the north-east until mid-
period, subsiding in the west towards the end of the period,
cyclonic swell.
AREA 2:
=======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/16 AT 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING :
– GALE FORCE 8 OVER WAM AND CRO.
PART 2: GENERAL SYNOPSYS, 24/07/16 AT 1200 UTC :
– LOW 985 HPA NEAR 43S/42E, WITH COLD FRONT ASSOCIATED AXIS: 25S/47E, 32S/53E, 40S/56E, 48S/49E EXPECTED 994 HPA NEAR 47S/53E AT END.
– HIGH 1036 HPA NEAR 35S/70E, EXPECTED 1037 HPA NEAR 34S/78E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 16/07/24 AT 1800 UTC TO 17/07/24 AT 1800 UTC :
WAM (30S/40S,50E/65E) :
FRONTAL SHOWERS.WIND : NORTHERLY 6 TO 7 WITH GUSTS AHEAD THE FRONT, INCREASING LOCALLY 8 OVER SOUTHERN AREA, BACKING NORTH-WEST 5 TO 7 BEHIND, THEN DECREASING 4 TO 6 AT END.SEA: ROUGH TO VERY ROUGH.
WESTERLY SWELL 3 TO 4 M OVER WESTERN AREA.VISI : POOR IN PRECIPITATIONS.
AMS (30S/40S,65E/80E) :
SHOWERS OVER WESTERN AREA AT END.WIND : ANTICLOCKWISE 3 TO 5 SETTING-UP NORTH 6 TO 7 BY WESTERN AREA IN THE MORNING.SEA : MODERATE TO ROUGH, LOCALLY VERY ROUGH OVER SOUTHERN AREA. SOUTHERLY SWELL 3 TO 4M ABATING.VISI : POOR OVER WESTERN AREA AT END.
CRO (40S/50S,50E/65E) :
SHOWERS AND SQUALLS.WIND : BECOMING CLOCKWISE 5 TO 7, LOCALLY NORTH 8 OVER EASTERN AREA. GUSTS.SEA : ROUGH TO VERY ROUGH. NORTHERLY SWELL 3 TO 4 M THEN WEST SWELL 4 M OVER NORTH-WESTERN PART AT END.VISI: POOR TO VERY POOR IN PRECIPITATIONS.
KER (40S/50S,65E/80E) :
FRONTAL SHOWERS.WIND : SOUTH-WEST 6 TO 7 OVER EASTERN AREA, SETTING-UP NORTHERLY 5 TO 7 BY WESTERN PART AND REACHING ALL THE AREA AT END.SEA: ROUGH TO VERY ROUGH. SOUTH-WESTERLY SWELL 3 TO 5M ABATING, THEN NORTH-WEST SWELL 4 TO 5 M BY WESTERN PART AT END.
VISI :
POOR UNDER PRECIPITATIONS
ENDS THIS IS CAPE TOWN RADIO
NNNN
