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 1100 UTC 23 OCTOBER 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 388 issued 230546UTC:
Over waters east of 160E.
Low 966hPa near 55S174E moving east southeast 15kt.
1. In a belt 420 nautical miles wide centred on a line 53S157E 48S164E 45S171E:
Clockwise 35kt at times. Gale area moving east 25kt.
2. Outside area 1 and within 360 nautical miles of low: Clockwise 35kt. Gale
area moving east southeast 15kt.
 
Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge 28S158E to high 1021 hPa near 36S159E to 40S156E to high 1026 hPa near
46S146E to 50S146E, forecast 28S158E to high 1023 hPa near 35S159E to high 1026
hPa near 44S155E to 50S154E at 231800UTC and 28S158E to high 1023 hPa near
34S161E to high 1025 hPa near 42S162E to 50S162E at 240600UTC.

Trough [1] 40S158E 41S163E 45S170E, forecast 38S160E 38S170E at 231800UTC and
weakening near 36S163E 35S170E at 240600UTC.

Cold front west of area, forecast 31S132E to low 1007 hPa near 40S129E to
50S131E at 231800UTC and 38S133E 50S141E at 240600UTC.

Trough [2] developing near 38S146E 41S143E 50S142E at 240600UTC.
 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge and 240nm of highs:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell,
moderate south of 40S.

Remainder east of ridge:
S quarter winds 10/20 knots north of trough [1] with slight to moderate seas,
tending SW quarter 20/30 knots south of trough [1] and increasing to 25/33 knots
within 120nm of warning areas with moderate to rough seas. Moderate swell north
of trough [1], tending moderate to heavy south of trough [1].

Remainder west of ridge:
N quarter winds 15/25 knots north of 38S, tending N quarter 20/30 knots 
south of 38S. Winds shifting SW quarter 15/25 knots west of cold front from
231800UTC, extending to west of trough [2] by 240600UTC. Moderate to rough seas.
Low to moderate swell increasing to moderate to heavy south of 43S.

Rain areas, scattered showers and isolated thunderstorms within 240nm of
troughs and cold front. Isolated showers remainder away from ridges. Visibility
reducing below 2nm in precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 2000  UTC 23 October 2014