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 2300 UTC 09 DECEMBER 2013
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
Melbourne Gale Warning 3 issued 091819UTC:
Area bounded by 38S141E 38S151E 39.5S151E 40S141E 38S141E.
New Zealand Gale Warning 104 issued 091800UTC:
In a belt 180 nautical miles wide centred on a line 45S162E 48S161E 52S160E:
Northerly 35kt developing next 6-12 hours.
Part 2 Situation at 1800 UTC
Refer to latest warnings.
Ridge [1] 28S164E 33S170E, slow moving.
Ridge [2] developing along 35S150E to high 1009 hPa near 37S158E at 101800UTC.
Cold front 38S147E 43S150E 46S149E to low 986 hPa near 49S146E to 50S146E.
Forecast 37S158E 41S160E 46S160E to low 977 hPa near 50S154E at 100600UTC and
38S163E 44S165E 50S165E at 101800UTC.
Trough 33S150E 39S154E 42S154E. Forecast 32S152E 37S158E at 100600UTC and
31S153E 38S163E at 101800UTC.
Cold front [2] developing over southwest of area and forecast 38S143E 45S149E
48S150E at 101800UTC.
Part 3 Forecast
Refer to latest warnings.
Within 60nm of ridges and area east of ridge [1]:
NE quarter winds 10/20 knots. Slight to moderate seas. Low to moderate swell.
Between ridge and trough/cold front outside warning area:
N quarter winds tending clockwise within 180nm of low. Wind speeds 15/25 knots
increasing to 20/30 knots east of trough/cold front and reaching 25/33 knots
within 120nm of warning areas. Moderate to rough seas. Low to moderate swell.
Remainder west of trough/cold front outside warning area:
W quarter winds tending S quarter within 120nm west of trough. Winds shifting SE
quarter between trough and ridge [2] after 101800UTC. Wind speeds 15/25 knots
grading to 25/33 knots within 120nm of warning areas. Moderate to rough seas.
Moderate to heavy swell.
Rain areas, scattered showers and isolated thunderstorms within 240nm of cold
fronts and trough. Scattered showers and isolated thunderstorms remainder west
of cold front [1]. Visibility reducing below 2nm in precipitation.
WEATHER MELBOURNE
The next routine forecast will be issued at 0700 UTC 10 December 2013
