IDV10210
 
SECURITE
Commonwealth Bureau of Meteorology 
Victoria
P.O. Box 1636 Melbourne Vic 3001
 
HIGH SEAS FORECAST FOR METAREA 10
SOUTH EASTERN AREA 28S/50S, 129E/170E. 
ISSUED BY THE BUREAU OF METEOROLOGY MELBOURNE
FOR 24 HOURS COMMENCING 1100 UTC 31 JULY 2010
 
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 issued 310756UTC for area bounded by 38S141E 38S146E
41S145E 46S145E 46S141E 38S141E.

Adelaide Gale Warning issued 310629UTC for area bounded by 35S129E 33S134E
34S138E 35S137.5E 35.5S139E 38S141E 44S141E 50S129E 35S129E. 

Sydney Gale Warning issued 310559UTC for area bounded by 38S157E 30S155E 32S160E
38S160E 38S157E.

New Zealand Storm Warning 873 issued 310600UTC.
Over waters east of 160E.
Low 997hPa near 39S159E moving southeast 30kt.
1. Within 300 miles of low in northeast quadrant: Clockwise 40kt rising to 50kt
next 6-12hours.
2. Outside area 1 within 540 miles of low in sector from north through east to
southeast: Clockwise 40kt at times.
3. Outside areas 1 and 2 and within 300 miles of low in sector from southwest
through northwest to north: Clockwise 40kt developing next 6 hours. 
Storm and gale areas moving with low.

 
Part 2 Situation at 0600 UTC
Refer to latest warnings.

Ridge [1] 28S167E 30S170E forecast 28S167E 29S170E at 311800UTC and 28S154E
28S165E 30S170E at 010600UTC.

Trough 30S155E 36S160E to deepening low [1] 997hPa 39S159E, forecast 28S158E
40S167E to low [1] 990hPa 44S165E at 311800UTC, and near 33S165E 39S170E to east
of 170E to low [1] 990 hPa near 46S171E at 010600UTC.

Cold front 34S135E 40S140E 50S141E, forecast 35S140E 43S144E 50S146E at
311800UTC and 35S150E 40S151E to low [2] 1004 hPa near 43S148E at 010600UTC.

Ridge [2] entering far west of area forecast near 39S129E 50S140E at 010600UTC.

 
Part 3 Forecast
Refer to latest warnings.

Within 180nm of ridges:
Variable winds to 15 knots. Slight seas and moderate swell.

Remainder between trough and ridge [1] and outside warning areas: 
Northerly quarter winds 15/25 knots grading to 25/33 knots within 120nm of
warning areas. Winds turning clockwise within 540nm low [1]. Rough seas.
Moderate swell, grading to heavy near warning areas. 

West of trough and east of front and outside warning areas:
Westerly quarter winds turning northerly quarter within 180nm east of front.
Winds turning clockwise within 540nm of low [1] and 240nm of low [2]. Winds
speeds 15/25 knots grading to 25/33 knots within 180nm of warning areas.
Moderate to rough seas. Moderate swell grading moderate to heavy near warning
areas. 

Remainder west of front and outside warning areas:
Southwesterly quarter winds shifting NW quarter west of ridge [2].  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 and isolated thunderstorms within 200nm of trough and cold front
reducing visibility below 2nm.


 
WEATHER MELBOURNE
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