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 2300 UTC 10 February 2016

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 1 issued 101801UTC:
Area bounded by 46S084E 45S101E 50S096E 50S083E 46S084E.

Melbourne Gale Warning 2 issued 101802UTC:
Area bounded by 50S115E 46S117E 45S121E 47S124E 50S123E 50S115E.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge 37S080E 37S097E 31S097E to high [1] 1020 hPa near 37S110E to 39S121E
40S129E, forecast 41S080E 37S096E 32S102E 39S119E 39S129E at 110600UTC and from
high [2] 1031 hPa near 41S080E to 37S099E 33S104E 39S125E 38S129E at 111800UTC.

Trough [1] 20S092E 30S091E to low [1] 1014 hPa near 34S091E to 36S094E,
forecast 20S093E to low [1] 1016 hPa near 33S093E to 35S096E at 110600UTC and
weakened near 26S090E 31S092E at 111800UTC.

Trough [2] 38S080E 40S089E to low [2] 1004 hPa near 45S097E to 50S101E,
forecast 36S098E 41S107E to low [2] 990 hPa near 48S108E to 50S108E at
110600UTC and 36S106E 41S117E 49S123E to low [1] 980 hPa near 50S120E at

Cold front near 47S118E 50S122E, forecast east of area near 48S133E 50S136E by

Low [3] 1004 just north of area near 11S094E, moving slowly eastwards near
11S096E at 111800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 240nm of highs and 180nm of ridge and area northeast of line 12S104E
18S105E 22S115E:
Variable winds below 20 knots tending W quarter within 120nm of line 17S119E
11S129E by 111800UTC. Slight to moderate seas. Low to moderate swell increasing
to moderate to heavy swell west of 100E.

Remainder north of ridge :
NE quarter winds below 10/20 knots east of 118E tending N quarter 15/25 knots
by 111800UTC. Winds shifting S/SE 15/25 knots remainder east of 105E and E
quarter 10/20 knots remainder increasing to 15/25 knots and becoming clockwise
within 240nm of low [3]. Winds becoming clockwise 15/25 knots within 180nm of
low [1] reaching 20/30 knots at times within 120nm of low. Winds tending SE
quarter 15/25 knots remainder west of trough [1]. Moderate to rough seas
abating slight to moderate in NE and easterly flow. Moderate swell.

Remainder south of ridge, outside warning areas:
W/NW winds east of trough [2] tending NW quarter by 111200UTC, shifting SW
quarter southwest of trough [2]. Wind speeds 20/30 knots increasing to 25/33
knots within 120nm of warning areas. Moderate to rough seas. Moderate swell,
increasing to moderate to heavy south of 40S.

Scattered showers and isolated thunderstorms north of 15S, within 240nm of
troughs and lows. Isolated showers remainder away from ridge. Visibility
reducing below 2nm in precipitation.


The next routine forecast will be issued at 08:00 UTC Thursday.