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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