Western Area High Seas Forecast

IDY10220
SECURITE
 
HIGH SEAS FORECAST FOR METAREA 10
WESTERN AREA: 12/30S 90/125E, 30/50S 80/129E
Issued by the Bureau of Meteorology Bureau National Operations Centre
FOR 24 HOURS COMMENCING 2300 UTC 01 OCTOBER 2014
 
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 4 issued 011915UTC:
Area bounded by 39S087E 38S097E 45S116E 50S120E 50S106E 50S097E 47S095E 44S088E
39S087E.
 
Part 2 Situation at 1800 UTC
Refer to latest warnings.

Ridge 25S090E to high 1019 hPa near 27S103E to 40S114E. Forecast 25S090E to high
1021 hPa near 26S103E to 34S111E at 020600UTC and 25S090E to high 1021 hPa near
26S104E 33S115E at 021800UTC.

Cold front [1] 30S095E 38S103E 48S104E 48S099E. Forecast 30S100E 38S110E 47S113E
50S111E at 020600UTC and 32S108E 41S120E 50S123E at 021800UTC.

Low 982 hPa near 46S095E. Forecast low 974 hPa near 48S102E at 020600UTC and low
973 hPa near 51S114E at 021800UTC.

Cold front [2] approaching west of area. Forecast 39S080E 45S088E 50S090E at
020600UTC and 40S089E 46S097E 50S098E at 021800UTC.

Trough 25S114E 32S114E 38S115E. Forecast 27S115E 39S116E at 020600UTC and
33S121E 40S120E at 021800UTC.
 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridge:
Variable winds below 20 knots. Slight to moderate seas. Moderate swell.

North of ridge:
S quarter winds shifting SE quarter west of 110E. Wind speeds 15/25 knots easing
to 10/15 knots east of line 12S120E 20S119E. Moderate seas. Low to moderate
swell. 

Remainder south of ridge and also east of trough outside warning area:
N quarter winds shifting W quarter west of cold front [1]. Clockwise within
420nm of low. Wind speeds 15/25 knots increasing to 20/30 knots south of 40S and
grading to 25/33 knots within 120nm of warning area. Moderate to rough seas.
Moderate to heavy swell. 

Rain areas, scattered showers and isolated thunderstorms within 240nm of cold
fronts and low and in the area north of 19S and west of 104E. Isolated to
scattered showers remainder south of ridge and also within 180nm of trough.
Visibility reducing below 2nm in precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 0900  UTC 02 October 2014