Western Area High Seas Forecast


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 1100 UTC 25 November 2015

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 250628UTC:
Area bounded by 48S080E 48S083E 50S087E 50S080E 48S080E.

Melbourne Gale Warning 4 issued 250627UTC:
Area bounded by 50S127E 45S125E 41S133E 45S134E 50S130E 50S127E.

Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge [1] 34S080E 34S095E 39S105E to high [1] 1029hPa near 44S108E to 50S110E.
Forecast 34S080E 34S096E to high [1] 1028hPa near 42S110E to 50S112E at
251800UTC and 36S080E to high [2] 1026hPa near 35S093E to 35S098E to high [1]
1025hPa near 41S113E to 50S114E at 260600UTC.

Ridge [2] from high [1] 1029hPa near 44S108E to 31S127E. Forecast from high [1]
1028hPa near 42S110E to 42S115E 35S129E at 251800UTC and from high [1] 1025hPa
near 41S113E to 41S116E 36S129E at 260600UTC.

Trough 37S095E 42S097E 48S094E. Forecast 38S097E 40S100E 49S101E at 251800UTC
and 38S099E 40S103E 50S106E at 260600UTC.

Cold front approaching far southwest of area, forecast 43S076E 50S082E at
251200UTC, 41S080E 50S088E at 251800UTC and 42S085E 44S091E 50S097E at

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges and 240nm of highs:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell
building moderate to heavy near ridge [2].

Remainder northeast of ridge [1] and north of ridge [2]:
Variable winds below 20 knots east of a line 12S110E 22S115E with slight to
moderate seas. SE quarter winds 15/25 knots remainder with moderate seas
tending S quarter east of 110E north from 30S and E quarter west of 100E south
from 20S. Wind speeds increasing to 20/30 knots at times within area bounded by
24S114E 24S110E 31S108E 34S116E 24S114E with moderate to rough seas. Low to
moderate swell.

Remainder east of ridge [1] and south of ridge [2], outside warning area:
SW quarter 15/25 knots increasing to 20/33 knots southeast of a line 50S119E
39S129E until 260001UTC. Winds grading to 25/33 knots within 120nm of warning
area. Moderate to rough seas. Moderate to heavy swell.

Remainder southwest of ridge [1]:
NW quarter winds tending W quarter west of cold front and also within 240nm
west of trough. Wind speeds 15/25 knots reaching 20/33 knots at times southwest
of a line 42S080E 50S097E and grading to 25/33 knots within 60nm of warning
area. Moderate to rough seas. Low to moderate swell.

Scattered showers and isolated thunderstorms within 180nm of cold front and
within 240nm east of trough. Scattered to isolated showers remainder east of
ridge [1] and south of ridge [2]. Visibility reducing below 2nm in


The next routine forecast will be issued at 20:00 UTC Wednesday.