South Eastern Area High Seas Forecast

IDY10210
SECURITE

High Seas Forecast for South Eastern Metarea 10
SOUTHEASTERN AREA: 28S/50S, 129E/170E
Issued by the Australian Government Bureau of Meteorology, BNOC
For 24 hours commencing 1100 UTC 5 August 2015

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
Melbourne Gale Warning 3 issued 050810UTC:
Area bounded by 50S143E 44S149E 44S154E 50S149E 50S143E.

Melbourne Gale Warning 4 issued 050746UTC:
Area bounded by 50S147E 46S154E 46S160E 50S160E 50S147E.

New Zealand Gale Warning 101 issued 050628UTC:
At 050600UTC. Over waters east of 160E.
In a belt 300 nautical miles wide centred on a line 43S163E 50S166E 58S168E:
Northerly 35kt. Gale area moving southeast 15kt.

New Zealand Gale Warning 103 issued 050628UTC:
At 050600UTC. Over waters east of 160E.
In an area bounded by 45S160E 48S165E 49S163E 49S160E 45S160E: Northwest 35kt.
Gale area slow moving.

Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge [1] 33S129E 31S133E. Forecast 36S129E 32S135E at 051800UTC and 38S129E
32S137E at 060600UTC.

Ridge [2] 28S160E 40S170E. Forecast 28S165E 33S169E 39S170E at 051800UTC and
28S169E 32S173E 39S174E at 060600UTC.

Trough [1] 28S164E 30S168E 34S170E. Forecast 28S169E 32S173E 39S174E at
051800UTC, then moving further east of area.

Trough [2] 44S155E 47S158E to low 979 hPa near 50S158E. Forecast 40S157E
45S161E to low 982 hPa near 49S160E at 051800UTC and 40S162E 47S167E 50S167E at
060600UTC.

Trough [3] 30S159E 36S157E, moving east 30kt and forecast to weaken by
051800UTC.

Cold front 36S150E 37S158E 42S161E 50S163E. Forecast 31S158E 34S162E 40S164E
50S166E at 051800UTC and 29S161E 35S169E 44S169E 46S170E at 060600UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges and area northwest of ridge [1]:
Variable winds below 20 knots. Moderate seas. Moderate to heavy swell.

Remainder west of cold front outside warning area:
SW quarter winds tending NW quarter east of trough [2]. Winds becoming
clockwise within 240nm of low. Wind speeds 20/30 knots, grading to 25/33 knots
within 120nm of warning area. Moderate to rough seas. Moderate to heavy swell.

Remainder north and east of cold front outside warning area:
NW quarter winds, tending SW quarter west of trough [3] and S quarter between
ridge [2] and trough [1]. Wind speeds 20/30 knots, decreasing to 15/25 knots
between ridge [2] and trough [1] and 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 240nm of cold
front and troughs. Scattered showers and isolated thunderstorms remainder south
of 40S west of cold front. Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 21:00 UTC Wednesday.