HS 025

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weather bulletin for shipping - Metarea 6- 09:00 UTC December 01, 2009 National Weather Service part one: Gale Warning strong baric gradient at 49 S 59 W 49 S 43 W 57 S 59 W 57 S 43 and moving to east to 20 kts provokes gale from northwest along 50 S 55 W 56 S 55 W 56 S 45 W 50 S 45 W 50 S 55 W ----------------------------------------------------------------- part two: synoptic situation at 09:00 UTC, December/01/2009 high 1017 hpa at 40 S 44 W moving east at 10 kts low 981 hpa at 52 S 62 W moving southeast at 20 kts extends cold front at 56 S 60 W 52 S 62 W 50 S 66 W 48 S 70 W moving east at 10 kts high 1023 hpa at 42 S 28 W moving east at 10 kts low 978 hpa at 55 S 52 W deeppening moving east at 20 kts extends cold front at 55 S 45 W 53 S 42 W 49 S 47 W 47 S 42 W moving east at 20 kts associated with occluded front 55 S 45 W 57 S 49 W 57 S 54 W 54 S 55 W low 46 hpa at 46 S 64 W moving east at 25 kts extends cold front at 46 S 64 W 43 S 63 W 41 S 67 W 40 S 72 W moving east at 20 kts low 963 hpa at 62 S 51 W moving east at 20 kts associated with occluded front 64 S 39 W 65 S 46 W 63 S 59 W 59 S 60 W cold front at 62 S 36 W 59 S 57 W 54 S 29 W 48 S 31 W moving east at 20 kts ----------------------------------------------------------------- parth three: forecast issued 12:00 UTC December 01,2009 valid until 06:00 UTC December 02,2009 1- coastal areas: outer Rio de la Plata: fresh to strong breeze from sector north/ gusts decreasing as from nightfall gentle breeze veering to east/ fair sky to partly cloudy/ mist breaking up afterwards fog and mist in patches/ visbility good to moderate. Inner Rio de la Plata: fresh to moderate breeze from sector north/ gusts decreasing gentle breeze as from nightfall/ fair sky to partly cloudy/ fog and mist in patches as from daybreak/ visbility good to moderate. Islas Malvinas coasts: strong breeze from northwest veering to southwest/ gusts/ variably cloudy/ possible snowfall/ showers/ visibility moderate to poor. 36 17'23'' S a 38 s: fresh to strong breeze from sector north/ gusts decreasing moderate breeze veering to sector east/ fair sky to partly cloudy/ mist breaking up afterwards as from daybreak/ fog and mist in patches/ visbility good to moderate. 38 S a 40 s: fresh breeze from northwest/ gusts changing towards the evening moderate to gentle breeze from sector south/ fair sky/ visibility moderate. 40 S a 42 s: fresh breeze from sector west/ gusts decreasing gentle breeze veering to sector south/ variably cloudy/ possible isolated rain/ improving/ visibility moderate to good. 42 S a 46 s: strong to fresh breeze from sector west changing temporarily to noderate to gentle from sector north during the night/ visbility good to moderate. 46 S a 50 s: fresh to strong breeze from sector west/ gusts veering to southwest/ variably cloudy/ possible isolated showers/ improving/ visibility moderate to poor. 50 S a 54 s: near gale from southwest/ gusts decreasing fresh breeze/ partly cloudy to cloudy/ possible rain and snow mixture/ improving by the end of the forecast period/ visibility poor to moderate. 54 S a 55 s: strong to near gale from southwest/ gusts decreasing fresh breeze by the end of the forecast period/ cloudy/ possible rain and snow mixture/ visibility poor to moderate. ----------------------------------------------------------------- 2- oceanic areas 35 S 20 W 40 S 20 W 40 S 30 W 35 S 30 W 35 S 20 W :strong breeze decreasing moderate breeze from northwest/ possible isolated showers/ improving/ visibility poor to moderate. 35 S 30 W 40 S 30 W 40 S 40 W 35 S 40 W 35 S 30 W :fresh breeze from east veering to north/ partly cloudy to cloudy/ possible rain/ showers/ speels of good weather/ visibility poor to moderate. 35 S 30 W 40 S 30 W 40 S 40 W 35 S 40 W 35 S 30 W :fresh breeze from east veering to north/ partly cloudy to cloudy/ possible rain/ showers/ speels of good weather/ visibility poor to moderate. 35 S 40 W 40 S 40 W 40 S 45 W 35 S 45 W 35 S 40 W :fresh breeze from southeast/ gusts decreasing gentle breeze veering to sector north as from nightfall/ cloudy/ possible showers/ improving/ visibility poor to moderate. 35 S 50 W 40 S 50 W 40 S 55 W 35 S 55 W 35 S 50 W :fresh to moderate breeze from sector east veering to north decreasing gentle breeze/ variably cloudy/ possible isolated precipitation/ improving/ visbility good to moderate. 35 S 55 W 40 S 55 W 40 S 60 W 35 S 60 W 35 S 55 W :strong breeze from sector north/ gusts decreasing moderate breeze/ variably cloudy/ possible isolated precipitation as from daybreak/ visibility moderate. 40 S 20 W 50 S 20 W 50 S 30 W 40 S 30 W 40 S 20 W :strong to fresh breeze from northeast veering to northwest/ variably cloudy/ possible isolated precipitation/ visibility moderate to poor. 40 S 30 W 50 S 30 W 50 S 35 W 40 S 35 W 40 S 30 W :strong to fresh breeze from sector north/ overcast/ possible precipitation/ visibility poor to moderate. 40 S 35 W 45 S 35 W 45 S 40 W 40 S 40 W 40 S 35 W :moderate breeze from sector south veering to north increasing fresh breeze/ variably cloudy/ possible isolated precipitation/ visibility moderate. 40 S 40 W 45 S 40 W 45 S 45 W 40 S 45 W 40 S 40 W :variable moderate breeze changing to strong to fresh from sector north/ cloudy increase/ worsening/ possible precipitation/ visbility good to moderate. 40 S 45 W 45 S 45 W 45 S 50 W 40 S 50 W 40 S 45 W :fresh breeze increasing/ near gale from northwest changing to sector south/ partly cloudy to cloudy/ possible precipitation as from daybreak/ visibility moderate to poor. 40 S 50 W 45 S 50 W 45 S 55 W 40 S 55 W 40 S 50 W :strong to near gale from northwest/ gusts changing to sector south/ variably cloudy/ possible isolated precipitation as from nightfall/ visbility good to moderate. 40 S 55 W 45 S 55 W 45 S 60 W 40 S 60 W 40 S 55 W :near gale to fresh breeze from northwest veering to south/ variably cloudy/ possible isolated showers/ speels of good weather during daybreak/ visibility poor to moderate. 45 S 35 W 50 S 35 W 50 S 40 W 45 S 40 W 45 S 35 W :moderate breeze from west veering to northwest as from nightfall increasing/ near gale gusts/ partly cloudy to cloudy/ worsening/ possible precipitation as from daybreak/ visibility poor to moderate. 45 S 30 W 50 S 30 W 50 S 35 W 45 S 35 W 45 S 30 W :fresh to strong breeze from sector north/ overcast/ possible precipitation/ visibility moderate to poor. 45 S 40 W 50 S 40 W 50 S 50 W 45 S 50 W 45 S 40 W :strong breeze increasing/ gale from sector north/ gusts changing by the end of the forecast period fresh breeze from sector west/ partly cloudy to cloudy/ worsening/ possible precipitation/ visibility moderate to poor. 45 S 50 W 50 S 50 W 50 S 55 W 45 S 55 W 45 S 50 W :strong breeze from sector west changing temporarily to southwest/ gusts/ overcast/ possible precipitation/ visibility moderate to poor. 45 S 55 W 50 S 55 W 50 S 60 W 45 S 60 W 45 S 55 W :strong to near gale from west changing temporarily to strong from sector south during the afternoon/ partly cloudy to cloudy/ possible precipitation/ visibility moderate to poor. 50 S 20 W 60 S 20 W 60 S 30 W 50 S 30 W 50 S 20 W :near gale to strong breeze from northwest/ gusts/ overcast/ possible precipitation/ visibility poor. 50 S 30 W 55 S 30 W 55 S 40 W 50 S 40 W 50 S 30 W :strong breeze increasing/ gale from sector north/ gusts as from daybreak/ overcast/ possible showers/ rain and snow mixture/ visibility poor. 50 S 40 W 55 S 40 W 55 S 55 W 50 S 55 W 50 S 40 W :gale from northwest/ gusts decreasing strong breeze afterwards as from daybreak from sector west/ overcast/ possible showers/ rain and snow mixture/ visibility poor. 55 S 30 W 60 S 30 W 60 S 40 W 55 S 40 W 55 S 30 W :strong to near gale from sector north/ gusts veering to sector south decreasing fresh breeze/ overcast/ possible isolated precipitation/ visibility poor to moderate. 55 S 40 W 60 S 40 W 60 S 50 W 55 S 50 W 55 S 40 W :strong to near gale from northwest changing to fresh from sector south/ overcast/ possible precipitation/ visibility poor to moderate. 55 S 50 W 60 S 50 W 60 S 60 W 55 S 60 W 55 S 50 W :fresh breeze to near gale from northwest veering to southwest/ gusts/ overcast/ possible precipitation/ visibility moderate to poor. 55 S 60 W 60 S 60 W 60 S 67 W 55 S 67 W 55 S 60 W :strong to near gale from southwest/ gusts decreasing as from daybreak/ overcast/ possible showers/ rain and snow mixture/ visibility poor to moderate. ----------------------------------------------------------------- Nnnn

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