Western Area High Seas Forecast

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High Seas Forecast for Western Metarea 10
WESTERN AREA: 12/30S 90/125E, 30/50S 80/129E
Issued by the Australian Government Bureau of Meteorology, BNOC
For 24 hours commencing 2300 UTC 27 August 2015

PLEASE BE AWARE
Wind gusts can be a further 40 percent stronger than the averages given here,
and maximum waves may be up to twice the height.

Part 1 Warnings
Melbourne Gale Warning 3 issued 271902UTC:
Area bounded by 38S080E 35S090E 35S096E 42S120E 50S124E 50S099E 40S095E 40S080E
38S080E.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 23S107E 37S106E 44S109E 49S118E 46S129E, weakening by 280600UTC.

Ridge [2] 24S090E 21S100E to high 1017 hPa near 23S107E to 29S116E. Forecast
23S090E to high 1017 hPa near 21S104E to 27S114E at 280600UTC and 24S090E
21S098E 21S107E 26S114E at 281800UTC.

Trough 27S108E 32S113E to low [1] 1007 hPa near 39S111E to 44S113E. Forecast
34S118E 41S116E to low [1] 995 hPa near 45S112E to 50S110E at 280600UTC and
33S120E 45S121E 50S118E at 281800UTC.

Cold front 30S088E 39S096E 50S099E. Forecast 28S096E 37S103E to low [2] 980 hPa
near 50S104E at 280600UTC and 28S102E 28S102E 28S102E 34S109E 47S112E 50S111E
at 281800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges, 240nm of high, and remainder north of ridge [2]:
Variable winds below 20 knots tending E quarter 10/20 knots north of a line
12S111E 18S090E. Slight to moderate seas. Low to moderate swell increasing to
moderate to heavy along ridge [1] south of 32S.

Remainder east of cold front, outside warning area:
Variable winds below 20 knots north of 30S. NW quarter winds shifting NE
quarter east of trough and turning clockwise within 240nm of low [2] and 300nm
of low [1]. Wind speeds 15/25 knots increasing to 20/30 knots within 480nm east
of trough and grading to 25/33 knots within 120nm of warning area. Moderate to
rough seas. Moderate to heavy swell.

Remainder west of cold front, outside warning area:
Variable winds below 20 knots north of 30S. SW quarter winds 20/30 knots,
increasing to 25/33 knots within 120nm of warning area. Moderate to rough seas.
Heavy swell.

Rain areas, scattered showers and isolated thunderstorms within 240nm of cold
front and 180nm of trough. Isolated showers over remainder south of ridge [2]
away from ridge [1] tending scattered west of cold front. Visibility reducing
below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 09:00 UTC Friday.