Western Area High Seas Forecast

IDY10220
SECURITE

High Seas Forecast for Western Metarea 10
WESTERN AREA: 12/30S 90/125E, 30/50S 80/129E
Issued by the Australian Government Bureau of Meteorology, BNOC
For 24 hours commencing 2300 UTC 24 May 2015

PLEASE BE AWARE
Wind gusts can be a further 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 241813UTC:
Area bounded by 43S119E 48S130E 50S132E 50S124E 46S119E 43S119E.

Melbourne Gale Warning 3 issued 241838UTC:
Area bounded by 42S099E 42S108E 41S116E 42S117E 50S110E 50S089E 43S096E 42S099E.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge [1] 41S080E to high 1032 hPa near 40S083E to 30S105E 34S118E. Forecast
44S080E to high 1034 hPa near 41S086E to 32S105E 33S117E at 250600UTC and
50S081E 44S084E to high 1035 hPa near 39S089E to 33S106E 33S118E at 251800UTC.

Ridge [2] 35S129E 36S126E 35S121E. Forecast 37S129E 34S121E at 250600UTC and
36S129E 34S124E at 251800UTC.

Trough 12S112E 18S116E 25S117E. Slow moving.

Cold front [1] 42S099E 47S104E to low [1] 992 hPa near 50S104E. Forecast
39S107E 46S114E to low [1] 996 hPa near 48S111E to 50S112E at 250600UTC and
36S119E 41S121E 45S120E to low [1] 1003 hPa near 47S117E to 50S115E at
251800UTC.

Cold front [2] 36S109E 38S114E 42S119E to low [2] 999 hPa near 46S119E to
50S127E. Forecast 35S114E 37S118E 45S129E with low [2] 988 hPa near 51S128E at
250600UTC and moving east of area by 251800UTC.

Part 3 Forecast
Refer to latest warnings.

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

remainder east of trough:
NE quarter winds 10/20 knots with slight to moderate seas. Winds tending E
quarter and increasing to 20/30 knots south of 18S with moderate to rough seas.
Low swell.

Remainder north of ridge:
SE quarter winds tending NE quarter west of high. Wind speeds 10/20 knots,
reaching 15/25 knots at times west of 110E north of 25S and also in area west
of high. Slight to moderate seas. Low to moderate swell.

Remainder south of ridge, outside warning areas:
W quarter winds tending N quarter east of cold front [2] and within 240nm east
of cold front [1] and SW quarter west cold front [1]. Winds becoming clockwise
within 180nm of lows. Wind speeds 20/30 knots grading to 25/33 knots within
120nm of warning areas. Moderate to rough seas. Moderate to heavy swell.

Rain areas, scattered showers and isolated thunderstorms within 240nm of lows,
trough and cold fronts. Isolated to scattered showers remainder away from
ridge. Visibility reducing below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 09:00 UTC Monday.