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 Bureau National Operations Centre
FOR 24 HOURS COMMENCING 2300 UTC 17 SEPTEMBER 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
Melbourne Gale Warning 4 issued at 171822UTC:
Area bounded by 36S153E 38S160E 50S160E 50S155E 44S151E 43S148E 40S150E 
39S150E 40S147E 39S147E 36S153E.

New Zealand Gale Warning 376 issued 171800UTC:
Over waters east of 160E.
Low 986hPa near 44S 160E moving south 20kt.
1. In a belt 240 nautical miles wide centred on a line 
41S150E 40S154E 41S160E: Clockwise 35kt. Gale area moving east 20kt.
2. Outside area 1 and within 360 nautical miles of low in eastern quadrant:
Clockwise 35kt at times. Gale area moving south 20kt.

 
Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge 39S129E to high 1026 hPa near 38S132E to 28S144E, forecast 
40S129E to high 1027 hPa near 39S134E to 28S147E at 180600UTC and
38S129E to high 1027 hPa near 37S140E to 28S153E at 181800UTC.

Trough 28S155E 37S166E to low [1] 991 hPa near 45S160E to 50S158E,
forecast 28S161E 44S171E 49S167E to low [1] 979 hPa near 47S161E at
180600UTC and then east of area by 181800UTC with low [1] 974 hPa near
49S162E.

Low [2] 991 hPa near 44S155E, forecast low [2] 979 hPa near 42S162E
at 180600UTC and weakening by 181800UTC.
 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge and 300nm of high: 
Variable winds below 20 knots. Slight to moderate seas. Moderate swell. 

East of trough, outside of warning areas:
NW quarter north of 39S, turning NE quarter south of 39S and tending 
clockwise within 360nm of lows. Winds speeds 15/25 knots, increasing to 
20/30 knots south of 40S and grading to 25/33 knots within 180nm of warning 
areas. Moderate to rough seas. Moderate swell.

Remainder west of trough, outside of warning areas:
SW quarter east of 137E, turning W quarter west of 137E and tending clockwise
within 360 nm of lows. Wind speeds 15/25 knots west of 145E increasing to 
20/30 knots east of 145E and grading 25/33 knots within 180 nm of warning 
areas. Moderate to rough seas. Moderate swell, increasing to moderate to 
heavy west of 150E.

Scattered showers and isolated thunderstorms east of trough and within 300nm
of  lows in area west of trough. Scattered to isolated showers remainder 
southeast of ridge. Visibility reducing below 2nm in precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 0900  UTC 18 September 2014