South Eastern Area High Seas Forecast

IDY10210
SECURITE
 
HIGH SEAS FORECAST FOR METAREA 10
SOUTHEASTERN AREA: 28S/50S, 129E/170E
Issued by the Bureau of Meteorology National Meteorological and Oceanographic
Centre
FOR 24 HOURS COMMENCING 1100 UTC 22 AUGUST 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
Nil.
 
Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge [1] 36S148E to high [1] 1037 hPa near 44S159E to 41S168E 38S170E. Forecast
36S149E to high [1] 1039 hPa near 44S160E to 36S170E at 221800UTC and 36S150E to
high [1] 1039 hPa near 44S160E to 38S170E at 230600UTC.

Trough 31S132E 36S131E 42S129E. Forecast 33S137E to low 1011 hPa near 42S135E to
47S136E 50S135E at 221800UTC and 35S140E to low 1012 hPa near 42S137E to 50S137E
at 230600UTC.

Ridge [2] forecast from high [2] 1027 hPa near 34S130E to 43S130E at 230600UTC.
 
Part 3 Forecast
Refer to latest warnings.

Within 120nm of ridges and 240nm of highs:
Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell.

Remainder north ridge:
E quarter winds 10/20 knots with slight to moderate seas, increasing to 15/25
knots north of 31S after 230300UTC with moderate to rough seas. Low to moderate
swell.

Remainder south of ridge and east of trough:
N quarter winds tending SW quarter east of high. Winds tending clockwise within
180nm of low. Wind speeds 15/25 knots increasing to 20/30 knots at times within
180nm of trough south of 37S after 221200UTC. Moderate to rough seas. Low to
moderate swell.

Remainder west of trough:
SW quarter winds tending NW quarter in the far southwest after 221800UTC. Winds
tending clockwise within 180nm of low. Wind speeds 15/25 knots reaching 20/30
knots at times within 240nm of low centre in the northwest quadrant. Winds also
reaching 20/30 knots at times southwest of line 47S129E 50S132E after 230300UTC.
Moderate to rough seas. Moderate to heavy swell.

Scattered showers and isolated thunderstorms within 180nm of trough and in area
north of 30S west of 155E. Scattered to isolated showers remainder north of
ridge. Visibility reducing below 2nm in precipitation.
 
WEATHER MELBOURNE
 
The next routine forecast will be issued at 2100  UTC 22 August 2014