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 26 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
Melbourne Storm Force Wind Warning 2 issued 261900UTC:
Area bound d by 38S143E 37S153E 40S154E 40S152E 39S151E 40S146E 41S145E 42S145E
42S143E 38S143E.

Melbourne Gale Warning 3 issued 261900UTC:
Area bounded by 48S080E 46S088E 43S111E 44S127E 50S135E 50S080E 48S080E.

New Zealand Gale Warning issued 161800UTC:
n a belt 180 nautical miles wide centred on a line 44S167E 42S168E 38S170E:
Southerly 35kt easing next 6-12 hours. Gale area slow moving.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 28S162E 29S170E, near stationary.

Ridge [2] 28S162E to high [1] 1020 hPa near 31S163E to 40S160E to high [2] 1020
hPa near 47S162E to 48S170E. Forecast 29S170E to high [1] 1919hPa near 31S164E
to 40S164E at 270600UTC and then ridge weakening.

Ridge [3] from high [3] 1030hPa near 37S129E to 33S136E. Forecast 37S129E to
high [3] 1027hPa near 37S134E to 34S137E at 270600UTC and near 35S129E to high
[3] 1025 hPa near 37S140E 31S141E at 271800UTC.

Ridge [4] from high 1030hPa near 37S129E to 50S150E to high [3] 1019hPa near
47S162E. Forecast from high [3] 1027hPa near 37S134E to 48S149E 49S157E 49S170E
at 270600UTC and from high [3] 1025 hPa near 37S140E to 46S149E 50S160E 50S170E
at 271800UTC.

Trough [1] 30S165E 34S173E 36S173E to low [1] 1013hPa near 39S167E. Forecast
30S168E 33S175E 35S177E 42S164E to low [1] 1007hPa near 43S159E at 270600UTC
and then east of area.

Trough [2] 28S153E 32S156E 43S155E 43S151E to low [2] 1007hPa near 40S150E to
low [3] 1009hPa near 41S146E to 49S149E. Forecast 27S153E 33S160E 41S161E
44S157E to low [2] 1004hPa near 42S154E to low [3] 1010hPa near 39S152E at
270600UTC and near 28S158E 34S166E 40S170E 46S164E to low [2] 1003 hPa near
44S160E to low [3] 1004 hPa near 40S159E at 271800UTC.

Cold front approaching far southwest of area from the west and forecast near
44S125E 50S131E at 271800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 120nm of ridges, 240nm of highs, and also northeast of ridge [1] and
northwest of ridge [3]:
Variable winds below 20 knots tending SW quarter 15/25 knots along ridge [4]
west of 140E. Slight to moderate seas, moderate to rough along ridge [3] west
of 140E. Low to moderate swell north of 37S. Moderate to heavy swell south of
37S.

Remainder east of trough [1]:
NW quarter winds 15/25 knots becoming clockwise 20/30 knots within 300nm of low
[1]. Moderate to rough seas. Moderate swell.

Remainder east of ridge [2]:
S quarter winds 15/25 knots becoming clockwise 20/33 knots within 300nm of low
[1]. Moderate to rough seas. Low to moderate swell north of 37S, moderate to
heavy south of 37S.

Remainder east of trough [2], north of ridge [4], outside warning area:
N quarter winds turning clockwise within 240nm of lows [2] and [3]. Wind speeds
20/30 knots grading to 25/33 knots within 120nm of warning area. Moderate to
rough seas. Low to moderate swell north of 37S, moderate to heavy south of 37S.

Remainder west of trough [2], north of ridge [4], east of ridge [3], outside
warning area:
S quarter winds turning clockwise within 240nm of lows [2] and [3]. Wind speeds
20/30 knots grading to 25/33 knots within 120nm of warning area. Moderate to
rough seas. Moderate to heavy swell.

Remainder south of ridges [2] and [4], outside of warning area:
W quarter winds 15/25 knots, increasing to 25/33 knots in far SW and within
120nm of warning area. Moderate to rough seas. Moderate to heavy swell.

Scattered showers and isolated thunderstorms within 180nm of front, troughs and
240nm of lows. Isolated to scattered showers remainder away from ridges.
Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

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