South Eastern Area High Seas Forecast

IDY10210
SECURITE

Updated 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 28 March 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
New Zealand Gale Warning 534 issued 280609UTC:
AT 280600UTC over waters east of 160E.
In a belt 120 nautical miles wide centred on a line 44S161E 41S161E 39S162E:
Southerly 35kt developing next 6 hours.

Melbourne Gale Warning 1 issued 280614UTC:
Area bounded by 46S096E 46S130E 48S138E 50S139E 50S091E 46S096E.

Melbourne Gale Warning 3 issued 280619UTC:
Area bounded by 46S119E 46S135E 43S132E 45S145E 50S149E 50S116E 46S119E.

Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge [1] 32S129E to high 1023 hPa near 37S141E to 37S149E to high 1022 hPa
near 30S156E to 31S165E, forecast 33S129E 38S147E 36S152E to high 1023 hPa near
31S154E to 31S170E at 281800UTC and 33S129E 38S149E to high 1023 hPa near
34S155E to 30S157E 30S170E at 290600UTC.

Ridge [2] 39S148E 47S154E 50S159E, forecast 36S153E 48S159E 50S162E at
281800UTC and 50S164E 39S158E 34S155E at 290600UTC.

Trough [1] 28S162E 32S168E 39S168E to low 1003 hPa near 43S163E to 50S166E,
forecast 41S170E to low 1002 hPa near 43S167E to 50S167E at 281800UTC and
48S170E 50S168E at 290600UTC.

Trough [2] 35S164E 42S164E, forecast 36S167E 43S166E at 281800UTC and then east
of area.

Cold front 42S129E 46S136E 50S138E, forecast 39S129E 42S139E 45S144E 50S149E at
281800UTC and 43S152E 45S156E 50S159E at 290600UTC.

Part 3 Forecast
Refer to latest warnings.

Within 120nm of ridges, 240nm of highs, and remainder north of ridge [1]:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell
increasing to moderate near ridge [2] and also east of 160E.

East of trough [1]:
NW quarter winds 15/25 knots tending E quarter south of 46S. Winds turning
clockwise 20/30 knots within 240nm of low. Moderate to rough seas. Low to
moderate swell.

Remainder north and east of ridge [2], outside warning area:
SW quarter winds tending S quarter south of 44S and shifting to W quarter east
of trough [2]. Winds further turning clockwise within 300nm of low. Wind speeds
15/25 knots increasing to 25/33 knots within 120nm of warning area. Moderate to
rough seas rising to rough to very rough near warning area. Moderate swell.

Remainder west of ridge [2], outside warning areas:
W quarter winds tending NW quarter east of cold front. Wind speeds 20/30 knots
easing to 15/25 knots after 282100UTC. Winds grading to 25/33 knots within
120nm of warning areas. Moderate to rough seas rising to rough to very rough
near warning areas. Moderate to heavy swell increasing to heavy west of cold
front.

Scattered showers and isolated thunderstorms within 240nm of front and troughs
and within 300nm of low. Scattered showers remainder southwest of ridge [2].
Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 20:00 UTC Saturday.