weather bulletin for shipping - Metarea 6-





09:00 UTC     August 29, 2008





National Weather Service





part one: Gale Warning





nil 





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part two: synoptic situation at 09:00 UTC, August/29/2008





low 1000 hpa at 35 S 48 W deeppening moving southeast at 30 kts 





extends occluded front at 34 S 50 W 38 S 48 W 41 S 42 W moving 





southeast at 30 kts 





low 1000 hpa at 41 S 42 W deeppening moving southeast at 30 kts 





extends cold front at 41 S 40 W 34 S 43 W 25 S 46 W moving 





southeast at 30 kts 





warm front at 41 S 41 W 44 S 36 W 45 S 28 W moving southeast at 





20 kts 





low 1003 hpa at 48 S 50 W weakening moving east at 20 kts 





extends occluded front at 46 S 52 W 49 S 51 W 46 S 42 W moving 





east at 20 kts 





high 1027 hpa at 56 S 39 W weakening moving east at 10 kts 





cold front at 34 S 75 W 47 S 68 W 54 S 80 W moving east at 20 





kts 





ridge at 35 S 63 W 46 S 61 W 56 S 62 W moving east at 20 kts 





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parth three: forecast issued 12:00 UTC August 29,2008 valid 





until 06:00 UTC August 30,2008





1- coastal areas:





outer Rio de la Plata: moderate to fresh breeze from southwest 





decreasing towards the evening veering to northwest/ variably 





cloudy/ visibility good.





Inner Rio de la Plata: moderate to gentle breeze from southwest 





veering to northwest increasing by the end of the forecast 





period/ fair sky/ visibility good.





Islas Malvinas coasts: moderate to gentle breeze from sector 





south veering to sector east increasing to fresh breeze/ 





variably cloudy/ possible drizzle/ improving/ visibility 





moderate.





36 17'23'' S a 38 s: moderate to gentle breeze from southwest 





veering to sector north increasing/ fair sky to partly cloudy/ 





mist during the morning/ visibility moderate to good.





38 S a 40 s: gentle breeze from sector south veering to sector 





north increasing to fresh breeze/ cloudy increase/ visibility 





good.





40 S a 45 s: variable gentle breeze changing to sector north 





increasing to fresh breeze decreasing by the end of the forecast 





period/ cloudy increase/ visibility good.





45 S a 50 s: moderate breeze to strong breeze from sector north 





decreasing during daybreak/ variably cloudy/ possible rain/ 





improving/ visibility moderate.





50 S a 55 s: moderate breeze to strong breeze from northeast 





veering to east/ partly cloudy to cloudy/ possible rain/ 





drizzle/ visibility good afterwards visibility poor.





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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 :moderate 





breeze from west veering to northwest increasing to strong 





breeze/ partly cloudy to cloudy/ visibility good.





35 S 30 W 40 S 30 W 40 S 40 W 35 S 40 W 35 S 30 W :strong to 





near gale from northwest veering to west increasing to gale 





cloudy/ possible showers and storms/ visibility poor to 





moderate.





35 S 40 W 40 S 40 W 40 S 50 W 35 S 50 W 35 S 40 W :strong to 





near gale from sector south veering to sector west decreasing to 





fresh breeze/ variably cloudy/ rain/ showers/ improving/ 





visibility poor afterwards visibility good.





40 S 20 W 45 S 20 W 45 S 30 W 40 S 30 W 40 S 20 W :fresh breeze 





to near gale from northwest/ partly cloudy to cloudy/ possible 





rain/ storms/ visibility moderate to poor.





40 S 30 W 45 S 30 W 45 S 40 W 40 S 40 W 40 S 30 W :strong to 





near gale from northwest changing to gale from sector west/ 





cloudy/ showers and storms/ visibility poor.





45 S 20 W 50 S 20 W 50 S 30 W 45 S 30 W 45 S 20 W :moderate 





breeze to gale from sector east/ partly cloudy to cloudy/ 





possible rain/ showers/ visibility moderate to poor.





45 S 30 W 50 S 30 W 50 S 40 W 45 S 40 W 45 S 30 W :strong breeze 





to strong gale from sector east/ cloudy/ possible rain/ showers/ 





visibility moderate to poor.





50 S 20 W 55 S 20 W 55 S 40 W 50 S 40 W 50 S 20 W :moderate to 





gentle breeze from sector south veering to sector east 





increasing to fresh breeze/ cloudy increase/ possible rain by 





the end of the forecast period/ visibility good afterwards 





visibility poor.





55 S 20 W 60 S 20 W 60 S 40 W 55 S 40 W 55 S 20 W :fresh breeze 





to gentle breeze from sector south changing to gentle variable/ 





variably cloudy/ visibility good.





40 S 40 W 45 S 40 W 45 S 50 W 40 S 50 W 40 S 40 W :gentle breeze 





to fresh breeze from sector south/ variably cloudy/ possible 





rain and showers/ improving/ visibility moderate to good.





45 S 40 W 50 S 40 W 50 S 50 W 45 S 50 W 45 S 40 W :gentle to 





moderate breeze from sector east veering to sector south/ 





variably cloudy/ possible isolated rain and showers/ visibility 





moderate.





40 S 50 W 45 S 50 W 45 S 60 W 40 S 60 W 40 S 50 W :fresh to 





moderate breeze from southwest veering to northwest/ variably 





cloudy/ visibility good.





45 S 50 W 50 S 50 W 50 S 60 W 45 S 60 W 45 S 50 W :moderate to 





gentle breeze from sector south changing to gentle variable 





afterwards from sector north/ variably cloudy/ possible showers/ 





improving/ visibility moderate to good.





50 S 40 W 55 S 40 W 55 S 58 W 50 S 58 W 50 S 40 W :fresh to 





moderate breeze from sector east/ partly cloudy/ possible 





isolated rain/ improving/ visibility moderate to good.





55 S 40 W 60 S 40 W 60 S 58 W 55 S 58 W 55 S 40 W :moderate 





breeze from sector east/ fair sky to partly cloudy/ visibility 





good.





55 S 58 W 60 S 58 W 60 S 67 W 55 S 67 W 55 S 58 W :strong breeze 





from northeast veering to sector east decreasing to fresh 





breeze/ cloudy/ possible rain and snow mixture/ speels of good 





weather/ visibility moderate/ occasionally/ visibility poor.





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