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 20 December 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 1 issued 201804UTC:
Area bounded by 50S102E 47S107E 47S129E 50S130E 50S102E.

Melbourne Gale Warning 3 issued 201806UTC:
Area bounded by 50S139E 49S140E 49S143E 50S145E 50S139E.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 39S129E 39S138E to high 1018hPa near 35S155E to 38S159E 50S167E,
forecast 41S129E 40S148E to high 1019hPa near 35S159E to 40S164E 47S170E
at 210600UTC and 40S128E 43S148E to high 1022 hPa near 38S165E to
42S169E at 211800UTC.

Ridge [2] from high near 35S155E to 50S150E, forecast from high near 35S159E
to 50S160E at 210600UTC and from high near 38S165E to 50S169E at 211800UTC.

Ridge [3] 29S153E to high 1018hPa near 35S155E, forecast 27S153E to high
1019hPa near 35S159E at 210600UTC and from high near 38S165E to 30S154E at
211800UTC.

Trough 28S164E 34S169E 43S170E, forecast 28S167E 32S170E at 210600UTC
and 28S166E 31S170E at 211800UTC.

Cold front [1] 40S156E 44S160E 50S163E, forecast 41S161E 50S169E at 210600UTC
and east of area at 211800UTC.

Cold front [2] 40S129E 44S135E to low [2] 991hPa near 48S136E to 50S136E,
forecast 42S141E 46S147E 50S146E to low [2] 981hPa near 52S144E at 210600UTC
and 44S153E 50S160E at 211800UTC.

Cold front [3] west of area, forecast 47S129E 50S137E at 211800UTC.

Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges and 240nm of highs:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell.

Remainder east of ridges [1] and [3]:
S/SE winds 15/25 knots with moderate to rough seas, shifting E/NE below 20
knots with slight to moderate seas, east of trough. Low to moderate swell.

Remainder north of ridge [1], west of ridge [3]:
SE quarter winds 15/25 knots west of 145E tending N quarter 15/25 knots
east of 145E. Moderate to rough seas, Low to moderate swell.

Remainder south of ridge [1], outside warning areas:
NW quarter winds 15/25 knots east of cold front [1] tending SW quarter west of
front [1] and tending W quarter within 240nm of ridge [2]. Winds tending N
quarter 20/30 knots east of cold front [2]. Winds shifting SW quarter 20/30
knots west of cold front [2], becoming W quarter by 210600UTC and then by
211800UTC becoming W/NW east of cold front [3] shifting W quarter 15/25 knots
west of front [3]. Winds speeds grading to 25/33 knots within 120nm of warning
areas. Moderate to rough seas. Moderate swell increasing to moderate to heavy
swell west of 160E in area south of 45S.

Rain areas and isolated thunderstorms within 300nm of cold fronts, trough and
lows and remainder east of trough. Scattered showers and isolated thunderstorms
north of 40S, east of 140E. Visibility reduced below 2nm in precipitation.

WEATHER MELBOURNE

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