South Eastern Area High Seas Forecast

IDY10210
SECURITE
 
HIGH SEAS FORECAST FOR METAREA 10
SOUTHEASTERN AREA: 28S/50S, 129E/170E
Issued by the Bureau of Meteorology National Meteorological and Oceanographic
Centre
FOR 24 HOURS COMMENCING 2300 UTC 29 AUGUST 2014
 
PLEASE BE AWARE 
Wind gusts can be 40 percent stronger than the averages given here, and maximum
waves may be up to twice the height.

 
Part 1 Warnings
New Zealand Gale Warning 852 issued 291915UTC:
Low 1010hPa near 35S170E moving southwest 20kt.
In a belt 180 nautical miles wide centred on a line 34S176E 37S170E 37S164E:
Clockwise 35kt at times. Gale area moving south southwest 5kt.
 
Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge 36S140E 48S161E 48S170E. Forecast 37S148E 44S152E 47S164E 46S170E at
300600UTC and near 38S148E 45S159E 47S170E at 301800UTC.  

Trough 28S168E 33S165E to low [1] 1005 hPa near 32S159E to 44S164E at 291800UTC
and 28S170E 32S166E to low [1] 1006 hPa near 31S161E to low [2] 1008 hPa near
37S164E to 43S166E at 300600UTC and near 28S170E to low [1] 1009 hPa near
33S162E to low [2] 1009 hPa near 38S158E at 301800UTC.  

Cold front [1] 40S129E 50S138E at 291800UTC and 31S130E 46S135E 50S143E at
300600UTC and near 32S132E 48S140E 50S145E at 301800UTC.

Cold front [2] forecast 34S123E 39S125E 48S125E to low 986 hPa near 51S121E at
300600UTC and near 32S128E 42S133E 48S133E 50S130E at 301800UTC. 
 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge: 
Variable winds below 20 knots. Slight to moderate seas. Moderate swell.  

Remainder north of ridge, outside warning area: 
SE quarter shifting NE quarter east of trough north of low [2] latitude and SW
quarter west of trough north of low [1] latitude. Winds turning clockwise within
360nm of low [1] and 120nm of low [2]. Wind speeds 15/25 knots, increasing to
25/33 knots within 120nm of low [2] in the southern semicircle and also 240nm of
low [1]. Moderate to rough seas. Moderate to heavy swell.  

Remainder south and west of ridge: 
N quarter winds shifting NW quarter west of front [1] south of 46S and W quarter
west of front [2]. Wind speeds 15/25 knots increasing to 20/33 knots within
240nm of cold fronts south of 40S. Moderate to rough seas. Moderate swell
increasing to moderate to heavy near/west of front [1] south of 45S.  

Rain areas, scattered showers and isolated thunderstorms within 360nm of lows
and 240nm of trough and cold fronts. Isolated to scattered showers remainder
away from ridge. Visibility reducing below 2nm in precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 0900  UTC 30 August 2014