IDY10210
SECURITE
High Seas Forecast for South Eastern METAREA 10
SOUTH EASTERN AREA: COAST AT 25S TO 25S170E TO 29S170E TO 45S160E TO 50S160E TO
50S129E TO COAST AT 129E
Issued by the Australian Government Bureau of Meteorology, BNOC
For 24 hours commencing 1100 UTC 16 August 2018
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
Refer to latest warnings for details of the area affected.
Melbourne Gale Warning 8.
Part 2 Situation at 0600 UTC
Refer to latest warnings for boundaries of affected areas and type of weather
systems.
Trough [1] near 34S159E 38S165E. Forecast 29S170E 33S175E at 171200UTC.
Ridge near 36S144E 50S144E. Forecast near 35S157E 43S161E 50S170E at 171200UTC.
Trough [2] near 36S121E 41S130E 50S138E. Forecast 28S134E 50S151E at 171200UTC.
Low 978 hPa near 49S120E. Forecast 992hPa near 46S136E at 171200UTC.
Part 3 Forecast
Refer to latest warnings.
Within 300nm of low outside warning area:
Clockwise winds around low below 25 knots in southeastern semicircle increasing
to 25/33 knots within 120nm of warning area. Slight to moderate seas rising to
rough within 120nm of warning area. Heavy swell.
Remainder south of line 30S129E 39S150E 29S170E outside warning area:
Northwesterly quarter winds 15/25 knots northeast of trough [1] tending
southwesterly quarter 20/30 knots west of trough [1], then northwesterly
quarter 20/30 knots west of ridge, and westerly quarter 20/30 knots west of
trough [2]. Wind speeds 25/33 knots within 120nm of warning area, and below 25
knots within 90nm of ridge. Rough seas. Moderate to heavy swell.
North of line 30S129E 39S150E 29S170E:
Winds below 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms within 180nm of
troughs and 300nm of low. Scattered showers remainder west of trough [2],
isolated showers otherwise away from ridge. Visibility reducing below 2nm in
precipitation.
WEATHER MELBOURNE
The next routine forecast will be issued at 21:00 UTC Thursday.
