weather bulletin for shipping - Metarea 6-
09:00 UTC November 20, 2009
National Weather Service
part one: Gale Warning
low 981 hpa at 39 S 34 W deeppening and moving to southeast to
20 kts provokes strong gale around itself
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part two: synoptic situation at 09:00 UTC, November/20/2009
low 981 hpa at 39 S 34 W deeppening moving southeast at 20 kts
extends cold front at 40 S 27 W 37 S 30 W 34 S 36 W moving
northeast at 10 kts associated with occluded front 38 S 33 W
39 S 37 W 43 S 33 W 40 S 28 W
high 1020 hpa at 56 S 38 W intensifying
high 1016 hpa at 34 S 54 W moving east at 10 kts
low 989 hpa at 52 S 66 W deeppening moving east at 10 kts
extends cold front at 54 S 68 W 53 S 61 W 48 S 59 W 42 S 59 W
moving east at 10 kts
warm front at 55 S 67 W 56 S 63 W 56 S 55 W moving south at 5
kts
occluded front at 56 S 68 W 60 S 76 W 57 S 85 W moving east at
10 kts
low 985 hpa at 49 S 78 W moving east at 10 kts extends cold
front at 50 S 78 W 49 S 75 W 44 S 75 W 41 S 79 W moving east at
10 kts
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parth three: forecast issued 12:00 UTC November 20,2009 valid
until 06:00 UTC November 21,2009
1- coastal areas:
outer Rio de la Plata: moderate to fresh breeze from sector
north/ gusts/ variably cloudy/ possible rain/ storms as from
nightfall/ visbility good to moderate.
Inner Rio de la Plata: gentle to moderate breeze from sector
north changing temporarily to sector east/ cloudy increase/
possible rain/ storms towards the evening/ visbility good to
moderate.
Islas Malvinas coasts: near gale gale gusts from sector north/
variably cloudy/ possible rain/ showers/ speels of good weather/
visibility good/ occasionally/ visibility moderate.
36 17'23'' S a 38 s: gentle to moderate breeze from sector
north/ mist breaking up/ variably cloudy/ visibility good/
occasionally/ visibility moderate.
38 S a 40 s: moderate breeze from sector west changing to fresh
from sector north afterwards gentle breeze from sector south/
fair sky to partly cloudy/ visibility good.
40 S a 45 s: fresh breeze/ gusts from sector west veering to
sector north changing to sector south afterwards decreasing/
variably cloudy/ visibility good.
45 S a 50 s: fresh breeze/ near gale from sector north
decreasing/ variably cloudy/ possible rain towards the
afternoon/ visibility good/ occasionally/ visibility moderate.
50 S a 55 s: moderate breeze from sector north changing to fresh
variable prevailing from sector east afterwards fresh breeze
from sector west/ variably cloudy/ possible isolated rain/
visibility good/ occasionally.
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2- oceanic areas
35 S 20 W 40 S 20 W 40 S 30 W 35 S 30 W 35 S 20 W :strong gale
from sector north veering to sector west afterwards decreasing/
cloudy/ possible rain/ showers/ visibility poor.
35 S 30 W 40 S 30 W 40 S 40 W 35 S 40 W 35 S 30 W :gale from
sector north changing to strong from sector south decreasing/
cloudy to partly cloudy/ possible rain/ showers/ improving/
visibility poor/ visibility good.
35 S 40 W 40 S 40 W 40 S 50 W 35 S 50 W 35 S 40 W :fresh breeze
from sector south changing to moderate variable prevailing from
sector west afterwards from sector north/ variably cloudy/
visibility good.
35 S 50 W 40 S 50 W 40 S 55 W 35 S 55 W 35 S 50 W :moderate
breeze from sector west changing to fresh from sector north/
fair sky to partly cloudy/ visibility good.
40 S 20 W 45 S 20 W 45 S 30 W 40 S 30 W 40 S 20 W :near gale
from sector east changing to gale from sector north afterwards
strong gale from sector south decreasing/ cloudy/ possible rain/
showers/ visibility poor.
40 S 30 W 45 S 30 W 45 S 40 W 40 S 40 W 40 S 30 W :gale from
sector south decreasing/ variably cloudy/ possible showers/
improving/ visibility moderate to good.
40 S 40 W 45 S 40 W 45 S 50 W 40 S 50 W 40 S 40 W :moderate
breeze from sector south veering to sector north/ variably
cloudy/ visibility good.
40 S 50 W 45 S 50 W 45 S 60 W 40 S 60 W 40 S 50 W :moderate
breeze from sector north increasing fresh breeze/ variably
cloudy/ possible isolated rain/ improving/ visibility good.
45 S 20 W 50 S 20 W 50 S 30 W 45 S 30 W 45 S 20 W :near gale
gale from sector east veering to sector south/ gusts/ variably
cloudy/ possible showers/ visibility moderate.
45 S 30 W 50 S 30 W 50 S 35 W 45 S 35 W 45 S 30 W :fresh breeze
from sector east changing to sector south/ variably cloudy/
possible showers/ improving/ visibility moderate to good.
45 S 35 W 50 S 35 W 50 S 50 W 45 S 50 W 45 S 35 W :fresh breeze
from sector east changing to sector north/ variably cloudy/
possible isolated rain/ visibility moderate.
45 S 50 W 50 S 50 W 50 S 60 W 45 S 60 W 45 S 50 W :fresh breeze/
gusts from sector north/ variably cloudy/ possible rain/
visibility moderate.
50 S 20 W 55 S 20 W 55 S 30 W 50 S 30 W 50 S 20 W :strong
breeze/ near gale from sector south/ variably cloudy/ visibility
good.
50 S 30 W 55 S 30 W 55 S 35 W 50 S 35 W 50 S 30 W :moderate
breeze from sector east changing to gentle variable/ variably
cloudy/ possible mist/ visibility moderate.
50 S 35 W 55 S 35 W 55 S 45 W 50 S 45 W 50 S 35 W :moderate
breeze from sector east changing to strong from sector north/
variably cloudy/ visibility good.
50 S 45 W 55 S 45 W 55 S 55 W 50 S 55 W 50 S 45 W :strong breeze
from sector north/ near gale variably cloudy/ possible rain/
visibility moderate.
55 S 20 W 60 S 20 W 60 S 30 W 55 S 30 W 55 S 20 W :moderate
breeze from sector south/ variably cloudy/ isolated snowfall/
improving/ visibility moderate/ visibility good.
55 S 30 W 60 S 30 W 60 S 40 W 55 S 40 W 55 S 30 W :moderate
breeze from sector west changing to fresh from sector north/
variably cloudy/ possible isolated snowfall/ visibility
moderate.
55 S 40 W 60 S 40 W 60 S 50 W 55 S 50 W 55 S 40 W :moderate
breeze near gale from sector north/ variably cloudy/ possible
rain/ snowfall/ visibility moderate.
55 S 50 W 60 S 50 W 60 S 60 W 55 S 60 W 55 S 50 W :near gale
from sector north changing temporarily to gale cloudy/ possible
rain/ snowfall/ visibility moderate.
55 S 60 W 60 S 60 W 60 S 67 W 55 S 67 W 55 S 60 W :moderate
breeze from sector north veering to sector west afterwards from
sector south/ variably cloudy/ possible showers/ rain and snow
mixture/ visibility moderate.
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