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
For 24 hours commencing 1100 UTC 22 September 2020

Please be aware
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger
than the forecast, and stronger still in squalls and thunderstorms. Maximum
waves can be twice the forecast height.

Part 1 Warnings
Melbourne Gale Warning 6.

Part 2 Situation at 0600 UTC
Cold front 30S152E 36S157E 43S161E. Forecast 29S153E 31S161E 38S165E at
231200UTC.

Trough 37S144E 40S145E 43S144E, forecast 46S160E 42S154E 33S153E at 231200UTC.

Low [1] 985hPa near 45S143E, forecast 996hPa near 47S162E at 231200UTC.

Low [2] developing, forecast 1004hPa near 50S129E at 230000UTC, and 1000hPa
near 49S134E at 231200UTC.

Part 3 Forecast
Refer to latest warnings.

Southeast of line 34S167E 33S160E 39S140E 48S129E, outside warning area:
Northwesterly quarter winds east of cold front, tending westerly quarter within
180nm west of front and northwesterly quarter east of trough. Winds further
shifting westerly quarter west of trough and turning clockwise within 360nm of
low [1], and within 120nm of low [2] from 230000UTC. Winds speeds 25/33 knots.
Rough to very rough seas. Moderate to heavy swell, decreasing to moderate by
221200UTC.

Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
increasing to heavy west of 137E until 220900UTC.

Rain areas, scattered showers and isolated thunderstorms within 240nm of front,
120nm of trough and 300nm of lows. Isolated showers elsewhere. Visibility
reducing below 2nm in precipitation.

WEATHER MELBOURNE

The next routine forecast will be issued at 21:00 UTC Tuesday.