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 2300 UTC 22 November 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
New Zealand Gale Warning 304 issued 221811UTC.
At 221800UTC in an area bounded by 45S166E 48S169E 50S168E 47S164E 45S166E:
Northwest 35kt developing next 6-12 hours.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 28S163E 31S170E. Slow moving and forecast 28S162E 31S170E at
231800UTC.

Developing ridge [2] from high 1014 hPa near 34S137E to 42S145E. Forecast
37S143E to high 1014 hPa near 39S145E to 44S153E 50S156E at 230600UTC and
37S149E to high 1014 hPa near 43S157E to 50S164E at 231800UTC.

Trough 38S148E 44S151E 50S153E. Forecast 34S151E 39S155E 44S158E 50S165E at
230600UTC and 33S152E 40S160E 46S165E 48S170E at 231800UTC.

Cold front approaching far west of area and forecast 35S129E 42S133E to low 990
hPa near 47S129E at 230600UTC and 36S137E 42S141E 46S141E 48S138E to low 990
hPa near 48S135E at 231800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge [1] and 120nm of ridge [2]:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell.

Remainder south of ridge [1] and northeast of trough outside warning area:
NW quarter winds tending NE quarter within 180nm of the west coast of New
Zealand's South Island after 231200UTC. Wind speeds 15/25 knots increasing
20/33 knots south of 44S until 231800UTC and within area bounded by 29S153E
29S156E 33S155E 32S152E. Moderate to rough seas. Low to moderate swell.

Remainder between ridge [2] and trough:
Variable winds below 20 knots north of 45S tending SW quarter 15/25 knots south
of 45S. Winds tending S quarter 15/25 knots within 180nm of the New South Wales
coast north from 36S after 230600UTC. Slight to moderate seas. Low to moderate
swell.

Remainder:
SW quarter winds tending NW quarter east of cold front and clockwise within
120nm of low. Variable winds below 20 knots in the Great Australian Bight until
230600UTC tending SW quarter 15/25 knots after 230600UTC. Wind speeds elsewhere
15/25 knots increasing to 20/33 knots south of a line 36S129E 45S146E west of
cold front and within 120nm east of cold front. Moderate to rough seas.
Moderate swell.

Scattered showers and isolated thunderstorms within 180nm of trough and cold
front. Isolated to scattered showers remainder west of cold front and east of
160E between trough and 35S. Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 08:00 UTC Sunday.