South Eastern Area High Seas Forecast

IDY10210
SECURITE
 
HIGH SEAS FORECAST FOR METAREA 10
SOUTHEASTERN AREA: 28S/50S, 129E/170E
Issued by the Bureau of Meteorology Bureau National Operations Centre
FOR 24 HOURS COMMENCING 2300 UTC 31 OCTOBER 2014
 
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 311836UTC:
Area bounded by 50S139E 43S132E 40S138E 40S142E 36S154E 41S157E 47S155E 50S150E
50S130E. 

New Zealand Gale Warning 609 issued 311800UTC:
Over waters east of 160E.
In a belt 180 nautical miles wide centred on a line 45S 163E 48S 167E 49S 169E:
Northwest 35kt.
Gale area slow moving.

 
Part 2 Situation at 1800 UTC
Slow moving ridge [1] 28S164E 31S167E to high[1] 1022 hPa near 32S172E. Forecast
28S166E 32S170E at 011800UTC.

Ridge [2] west of area, forecast near 35S129E 32S133E at 010001UTC and 36S129E
33S135E at 010600UTC and 32S139E to high [2] 37S132E to 50S132E at 011800UTC.

Cold front 38S144E 45S147E 48S146E to low 970 hPa near 49S143E. Forecast 34S151E
41S157E 50S159E with low 968 hPa near 49S147E at 010600UTC and 34S151E 41S156E
45S155E 45S155E to low 974hPa 48S153E at 011800UTC.

Trough[1] developing 33S151E 41S157E 48S160E 50S160E by 010600UTC. Forecast
28S153E 39S163E 50S168E at 011800UTC. 

Trough [2] 40S160E 45S162E 48S163E 50S163E developing by 011800UTC. 

Warm front from low 970 hPa near 49S142E to 49S156E at 311800UTC and south of
50S by 010600UTC.
 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges, 240nm of high, northeast of ridge [1] and northwest of
ridge [2]: Variable winds below 20 knots. Slight to moderate seas. Moderate
swell.

Remainder east of cold front and north of warm front, outside warning areas:
NW quarter winds tending anticlockwise within 500nm of high, W quarter within
300nm west of troughs. Winds clockwise within 600nm of low. Wind speeds 15/25
knots north of 40S east from 160E, increasing to 20/33 knots elsewhere outside
warning area and extending to within 480nm east of cold front after 010001UTC.
Moderate to rough seas. Moderate to heavy swell.

Remainder west of cold front and south of warm front, outside warning areas:
Clockwise winds within 600nm of low, becoming SW quarter elsewhere. Wind speeds
20/30 knots increasing to 25/33 knots within 120nm of warning areas. Rough seas.
Moderate to heavy swell.

Scattered showers and isolated thunderstorms within 180nm of fronts and troughs.
Scattered showers remainder west of cold front. Visibility reducing below 2nm in
precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 0800  UTC 01 November 2014