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Weather analysis > Weather bulletin of the 27th December 2012.

Weather bulletin of the 27th December 2012.

Weather analysis |

Weather analysis for the 27th December 2012 at 00 UTC.

General synopsis by  December 27, 2012 at 00h UTC :
Low 971 hPa 53S77E, moving southeast, expected 989 hPa 58S100E at 28/12 UTC.
New Low expected 994 hPa 45S93E at 28/12 UTC.
Low 970 hPa 55S104E, moving southeast, expected 969 hPa 58S112E at 27/12 UTC, then 972 hPa 59S122E at 28/00 UTC, then 978 hPa 60S129E at 28/12 UTC. Associated disturbance crossing PERTH, then west ADELIE.
Low 984 hPa 57S146E, moving southeast, expected 987 hPa 59S151E at 27/12 UTC, 986 hPa 61S155E at 28/00 UTC, then 989 hPa 62S158E at 28/12 UTC. Associated trough crossing west AUCKLAND. Another trough extending northwards in wich new low deepening and moving east then southeast, expected 997 hPa 50S144E at 27/12 UTC, 998 hPa 49S153E at 28/00 UTC, then 993 hPa 54S157E at 28/12 UTC. Associated cold front crossing northeast ADELIE.
Low 967 hPa 59S170W, moving east, expected 970 hPa 60S159W at 27/12 UTC, then 973 hPa 58S148W at 28/00 UTC, then 973 hPa 58S139W at 28/12 UTC. Associated cold front crossing east ROSS then west ALBATROSS. Associated trough extending eastwardsin wich new low 976 hPa 61S153W, deepening and moving east, expected 972 hPa 61S141W at 27/12 UTC, then moving southeast, expected 964 hPa 65S133W at 28/00 UTC, then 958 hPa 68S134W at 28/12 UTC. Associated disturbance crossing ALBATROSS.
Low 992 hPa 62S123W, expected 993 hPa 63S114W at 27/12 UTC.
Low 1003 hPa 42S124W, moving southeast, expected 994 hPa 45S121W at 27/12 UTC, then 995 hPa 47S118W at 28/00 UTC, then 997 hPa 50S112W at 28/12 UTC.

High 1023 hPa 38S120E moving east and building, expected 1025 hPa 38S129E at 28/12 UTC. Associated ridge extending over east PERTH, moving east over west ADELIE and weakening.
High 1022 hPa 44S160E,  moving southeast, expected 1027 hPa 45S170E at 28/12 UTC. Associated ridge extending over west AUCKLAND, moving east over west ROSS.
High 1028 hPa 36S156W, merging with previous one.
High 1034 hPa 38S93W, with little move, extending ridge over east PAQUES.

Weather forecast for the 28th December 2012 at 00 UTC.

Weather forecast from  December 27, 2012 at 09h UTC to  December 28, 2012 at 12h UTC :
East PERTH, North 52S : West or Northwest 20/25 kt, gusts 30/35 kt, decreasing 10/15 kt in extreme north at end. Sea rough or very rough in south by west swell 4/5 m. squalls.
ADELIE North 53S, West 145E : West or Southwest 20/25 kt, gusts 35/40 kt, backing West or Northwest 20/25 kt, gusts 25/30 kt from west soon, increasing West or Southwest 25/30 kt, gusts 30/35 kt at end. Sea rough or very rough, cross with west or northwest swell 4/5 m at first and at end. squalls.
ADELIE North 55S, East 145E : North or Northwest 20/25 kt, gusts 30/35 kt, backing West or Southwest 15/20 kt from west soon, locally variable 5/10 kt in south. Sea rough cross with west swell 4/5 m. Rain and squalls.
AUCKLAND : West or Northwest 15/20 kt, gusts 25/30 kt, increasing North or Northwest 25/30 kt, gusts 35/40 kt in west at end. Sea rough cross with west swell 2/3 m in west, but  rough by southwest swell 3/4 m in east. Rain and squalls.
ROSS North 55S, West 168W : Southwest 30/35 kt, gusts 40/45 kt, decreasing West 15/20 kt, gusts 25/30 kt from west lsoon. Sea very rough or high 6/7 m cross, becoming rough by southwest swell 3/4 m. Rain and squalls.
ROSS North 55S, East 168W : West 35/40 kt, gusts 45/50 kt, backing Southwest from west later, decreasing 25/30 kt, gusts 35/40 kt in west at end. Sea becoming high cross 7/8 m from west. Rain and squalls.
ALBATROSS 46S-53S, West 138 W : West or Northwest 25/30kt, gusts 35/40 kt, backing West soon, increasing West or Southwest 30/35 kt, gusts 40/50 kt from west at end.  Sea rough cross wiyh southwest swell 2/3 m, becoming very rough or high cross from west 7/8 m at end. Rain and squalls.
ALBATROSS north 53S, East 138 W : Northwest 30/35 kt, gusts 40/45 kt, but Variable 5/15 kt in northeast at first, decreasing 25/30 kt, gusts 35/40 kt soon, then temporarily 15/20 kt at end.  Sea rough or very rough cross with west swell 2/3 m. Rain and squalls.
ALBATROSS 50S-43S, 126W-115W : Cyclonic 25/30 kt, gusts 35/40 kt, becoming Southwesterly later, then West at end. Sea rough or very rough cross. Rain and squalls.
PAQUES North 57S, West 110W : West 5/15 kt prevailing, veering North or Northwest later, but becoming temporarily Southeasterly in extreme north, increasing North or Northwest 20/25 kt, gusts 30/35 kt from west at end. Sea moderate by west  swell 2/3 m, becoming rough at end. Rain and squalls.
 

Weather forecast for the 29th December 2012 at 00 UTC.

Further outlook from  December 28, 2012 at 12h UTC to  December 29, 2012 at 12h UTC.
Strong wind warning greater than 40 nds :
Extreme East ROSS, West ALBATROSS : West to Southwest 40/45 kt.

High wave warning greater than 6 m :
Southest PERTH : 6/7 m
Est ROSS, West ALBATROSS : 6/8 m

On  Thursday , December 27, 2012 at 10hUTC.
Christelle Alot
Météo-France

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