|
=========
weather bulletin for the high seas for Metarea VII, east of 20e.
Issued by the South African Weather Service on the
24th July 2008 at 08:30 UTC.
For southeast sector of Metarea VII, prepared by reunion,
see area forecast 2 below.
Note: wx observations.
======================
Could all vessels experiencing unexpected, severe wx/sea state
plese make every effort to report this to saws via cape town
radio.
Area 1:
=======
forecast valid from 241000 to 251000 UTC.
Wind in knots, wave heights in metres. 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 warning(s):
================
1. Cape west : W to NW 35, reaching 40 to 45 in the south.
2. Cape east : NE to N reaching 35 to 40 over the central interior
but W to NW reaching 40 in the South-West.
3. Marion forties east : NE to N reaching 35 in the South-West at
first, becoming 35 by the second half of
the period.
Synoptic situation at 240600 UTC
=================================
high 1026 hpa 24s02w high 1042 hpa 35s54e
low 974 hpa 51s02w low 974 hpa 59s10e low 898 hpa 51s19e
low 990 hpa 50s75e
1. Cold front: 30s11e 35s20e 40s24e 50s21e 51s19e
Area forecast
=============
Cape east (32.5s/40s, 20e/50e)
wind : W to SW 15 in the extreme north-west at first, otherwise
NE to N 15 to 25 reaching 35 to 40 over the central interior
but W to NW 20 to 30, reaching 40 in the South-West.
Vis : good but poor in showers in the South-West.
Sea state: 3m to 4m, reaching 6 to 8m in the South-West, mainly SW swell.
Durban east (25s/32.5s, East Coast/55e)
wind : NE to E 25 to 30.
Vis : good.
Sea state: 2.5 to 3.5m, mainly se swell.
Mozambique channel:
wind : se 10 to 20.
Vis : good.
Sea state: 2.5m, S swell.
Madagascar east (10s/25s, East Coast/55e)
wind : E 20 in the extreme south, otherwise se 20 to 25.
Vis : moderate in showers.
Sea state: 3 to 4m, SSE swell.
Marion forties east (40s/50s, 35e/50e)
wind : NE to N 25 to 30 reaching 35 in the South-West at first,
becoming 30 to 35 by the second half of the period.
Vis : poor in rain and showers in the west.
Sea state: 4.5m to 5m, reaching 6m in the west at times, mainly NW swell.
Area forecast 2:
===============
marine meteorological bulletin from Meteo-France/La Reunion on
area ack (amsterdam-Crozet-kerguelen)
Date : 24/07/08 UTC time : 06:00
Averaged wind speed on Beaufort scale
wind gusts may be about 40% stronger than the averages given here.
Part 1:
Storm Warning : gale force 8 running over ams, strong gale force 9
expected over cro and ker. Violent gale force 10 expected over
ker.
Part 2:
general synopsis, 24/07/08 at 0000 UTC :
high 1040 hpa stationnary near 35s/53e, with ridge southwestward.
Waving cold front axis 45s/30 E, 44s/49e, 47/65 with low 998hpa hpa
near 49s/67e.
Part 3:
forecast for 24 hours from 24/07/08 at 0600 UTC to 25/07/08 at 0600 utc:
Wam (30s/40s,50e/65e) : showers.
Wind : anticlockwise 4/5, temporariy 6 over eastern.
Sea : moderate to rough becoming very rough over southeasthern at end.
Moderate southwesterly swell .
Vis : moderate in showers.
Ams (30s/40s,65e/80e) :showers then rain and snow over eastern tonight.
Wind: W 6/7 setting-up 8 over southern this afternoon and this night.
Sea : moderate to rough, becoming very rough to high in the evening.
Moderate southwesterly swell .
Vis : poor in rain, snow and showers.
Cro (40s/50s,50e/65e) : rain, snow and frontal showers.
Wind : W 8/9 over eastern decreasing temporariy 6/7 in night
increasing 7/8 at end.
Sea : rough, becoming very rough.
Moderate to heavy westerly swell.
Vis : poor in rain, snow and showers.
Ker (40s/50s,65e/80e) : rain and snow in front.
Wind:w 7/9 temporally 10 during the day..
sea : rough,to very rough to high. Heavy westerly swell .
Vis : poor in rain, snow and showers.=
|
