Western Area High Seas Forecast

IDY10220
SECURITE

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 25 May 2016

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 2 issued 251801UTC:
Area bounded by 34S131E 38S132E 43S118E 45S105E 41S104E 38S119E 34S131E.

Melbourne Gale Warning 3 issued 241813UTC:
Area bounded by 33S080E 32S096E 37S105E 50S117E 50S080E 33S080E.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 29S080E 29S094E 26S105E 25S116E. Forecast 28S080E 27S090E to high
1020 hPa near 29S107E to 28S116E at 260600UTC and 27S080E 25S099E to high 1024
hPa near 32S118E to 30S125E at 261800UTC.

Ridge [2] 29S094E 35S102E 50S095E. Forecast from high 1020 hPa near 29S107E to
36S111E 50S109E at 260600UTC and from high 1024 hPa near 32S118E to 37S117E
50S122E at 261800UTC.

Cold front [1] 31S112E to low [1] 999 hPa near 42S120E. Forecast 32S124E
40S128E to low [1] 998 hPa near 45S126E at 260600UTC and 32S134E 38S136E to low
[2] 1002 hPa near 41S133E to low [1] 1000 hPa near 49S129E at 261800UTC

Cold front [2] 37S076E 40S082E 46S090E to low [3] 970 hPa near 49S084E to low
[4] 971 hPa near 46S079E. Forecast 33S084E 39S093E 48S100E to low [3] 966 hPa
near 49S095E to low [4] 975 hPa near 45S088E at 260600UTC 32S094E 39S102E
50S110E to low [3] 969 hPa near 52S105E to low [4] 970 hPa near 50S103E and at
261800UTC.

Trough [1] 39S106E 45S109E 50S113E. Forecast 37S117E 43S119E 50S120E at
260600UTC and weakening near 34S127E 40S130E at 261800UTC.

Trough [2] 42S076E to low [4] 971 hPa near 46S079E. Forecast 38S082E to low [4]
975 hPa near 45S088E at 260600UTC and 38S091E 45S101E to low [4] 970 hPa near
50S103E at 261800UTC.

Ridge [3] approaching from the west, forecast 30S075E 40S080E 50S088E at
261800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge [1], within 120nm of ridges [2] and [3], 240nm of high
and east of line 12S120E 18S112E 22S118E:
Variable winds below 20 knots tending W quarter 10/20 knots near ridges [2] and
[3]. Slight to moderate seas. Moderate to heavy swell decreasing to low to
moderate east of line .

Remainder north of ridge [1]:
SE quarter winds tending E quarter west of 105E. Wind speeds 15/25 knots.
Moderate seas. Moderate swell.

Remainder south of ridge [1], east of ridge [2] outside warning area:
SW quarter winds tending NW quarter east of cold front [1] and trough [1].
Winds becoming clockwise within 180nm of lows. Wind speeds 20/30 knots grading
to 25/33 knots within 120nm of warning area. Moderate to rough seas. Moderate
to heavy swell.

Remainder south of ridge [2], west of ridge [2], outside warning area:
SW quarter winds tending NW quarter east of cold front [2], east of trough [2]
and west of ridge [3]. Clockwise winds within 420nm of low [3] and 720nm of low
[4]. Wind speeds 20/30 knots grading to 25/33 knots within 120nm of warning
area. Moderate to rough seas. Moderate to heavy swell

Rain areas, scattered showers and isolated thunderstorms within 300nm of
fronts/trough and lows. Scattered showers and isolated thunderstorms north of
25S west from 105E. Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

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