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 1100 UTC 18 February 2026
Part 1 Warnings
Refer to latest warnings for details of the area affected.
Melbourne Storm Force Warning 6.
Melbourne Gale Warning 3.
Melbourne Gale Warning 5.
Part 2 Situation at 180600 UTC
Cold front [1] 40S093E 41S096E to developing low 998hPa near 45S103E to warm
front 45S109E 44S110E. Forecast near cold front [2] 39S120E to low 978hPa near
53S129E to warm front 53S135E 50S140E at 191200UTC with low and warm front
south of area.
Forecast cold front [2] near 47S071E 53S077E 55S074E at 182100UTC entering area
from west, then near 43S091E 46S095E 50S097E at 191200UTC.
Trough developing near 12S104E to low 1007hPa near 14S107E to 15S110E, forecast
slow moving.
Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.
Whole area except south of line 42S080E 39S100E 39S129E, outside of warning
areas:
Westerly quarter winds, shifting northwesterly quarter 420nm east of cold front
[1] and within 320nm of cold front [2]. Wind speeds 25/33 knots. Rough to very
rough seas. Moderate to heavy swell.
West of line 24S110E 34S110E:
Southerly quarter winds 20/30 knots. Rough seas. Moderate swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms within 120nm of cold
fronts. Heavy at times 120nm of low and trough. 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 20:00 UTC Wednesday.
