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 3 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 1 issued 030647UTC:
Area bounded by 50S123E 44S133E 43S147E 46S157E 50S153E 50S123E.

Melbourne Gale Warning 3 issued 030652UTC:
Area bounded by 43S148E 38S148E 35S154E 39S158E 44S150E 43S148E.

New Zealand Storm Force Wind Warning 054 issued 030641UTC:
Over waters east of 160E.
Low 963hPa near 54S164E moving southeast 25kt.
1. Within 240 nautical miles of low in sector from southwest through northwest
to southeast: Clockwise 50kt at times.
2. Outside area 1 and within 480 nautical miles of low in eastern quadrant:
Clockwise 35kt.
3. Outside areas 1 and 2 and within 300 nautical miles of low in sector from
southeast through southwest to northeast: Clockwise 35kt.
Storm and gale areas moving with low.

Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge 39S129E 50S154E. Forecast 34S129E 41S151E 50S159E at 031800UTC and
32S151E 39S161E 50S169E at 040600UTC.

Trough [1] 28S153E 37S161E, merging with trough [2] by 031800UTC.

Trough/cold front [2] 33S151E 37S159E to low 991hPa near 46S160E to 50S162E.
Forecast28S157E 34S165E 41S169E 48S166E 50S168E at 031800UTC and 28S161E
34S170E at 040600UTC.

Developing trough [3] forecast 47S131E 50S134E at 031800UTC and 45S142E 50S144E
at 040600UTC.

Developing cold front forecast 47S130E 48S136E 50S139E at 031200UTC, 45S131E
47S142E 50S146E at 031800UTC and 41S137E 47S154E 50S156E at 040600UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge:
Variable winds below 25 knots decreasing to below 15 knots north of 40S.
Moderate seas. Heavy swell.

Remainder east of trough [2], outside warning areas:
NW quarter winds tending W quarter between trough [1] and [2], becoming
clockwise within 180nm of low. Wind speeds 15/25 knots increasing to 25/33
knots within 120nm of warning areas. Moderate to rough seas. Moderate to heavy
swell.

Remainder west of trough [2] and east of ridge, outside warning areas:
SW quarter winds 15/25 knots, tending clockwise 15/25 knots within 180nm of
low. Winds increasing to 25/33 knots within 180nm of warning area. Winds
gradually tending S quarter below 20 knots north of 40S after 040001UTC.
Moderate to rough seas. Moderate to heavy swell.

Remainder west of ridge, outside warning area:
NW quarter winds within 300nm east of cold front, tending SW quarter west of
cold front, except W quarter between cold front and trough [3]. W quarter winds
elsewhere. Wind speeds 15/25 knots increasing to 25/33 knots within 180nm of
warning areas. Moderate to rough seas. Moderate to heavy swell.

Rain areas, scattered showers and isolated thunderstorms within 240nm of cold
fronts 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 Monday.