FQAU23 AMMC 202000

IDY10220

SECURITE



High Seas Forecast for Western METAREA 10

12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E



Issued by the Australian Government Bureau of Meteorology

For 24 hours commencing 2300 UTC 20 November 2024



Part 1 Warnings

Melbourne Gale Warning 9.

Melbourne Gale Warning 11.

Melbourne Gale Warning 12.



Part 2 Situation at 1800 UTC

Cold front near 41S089E 50S096E. Forecast near 40S107E 50S114E at 220000UTC.



Trough near 30S126E 36S123E to low 1002hPa near 37S118E. Forecast near 33S128E

40S129E to low 1005hPa near 41S122E at 220000UTC.



Part 3 Forecast

South of line 41S080E 43S112E 50S116E, outside warning areas:

Westerly quarter winds, shifting northwesterly quarter winds within 300nm east

of front shifting westerly reminder west of front. Wind speeds 20/33 knots.

Moderate to rough seas. Moderate to heavy swell.



Within area bounded by 34S117E 41S113E 40S127E 37S129E 34S117E:

Northeasterly quarter winds 20/30 knots within 60nm south of trough until

210600UTC and southwesterly quarter winds developing within 240nm of low in the

western semicircle from 210300UTC. Moderate to rough seas. Low to moderate

swell.



Within 120nm of line 12S093E 15S100E:

Southeasterly quarter winds 20/30 knots. Moderate to rough seas. Low to

moderate swell.



Remainder:

Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.



Rain areas, scattered showers and isolated thunderstorms within 180nm of front

and trough, within 420nm of low, and north of line 14S090E 17S103E 18S120E.

Heavy at times within 60nm of line 14S104E 12S095E. Visibility reducing below

2nm in precipitation.



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.



WEATHER MELBOURNE



The next routine forecast will be issued at 08:00 UTC Thursday.