This spring and summer have been far from ‘average’ - whatever average really means!
Very dry spring and now a weak La Nina with extremely warm air over inland Australia. We had very few S wind changes move up the NSW coast during November – this morning has seen a few S changes - but true frontal related S changes remain below average and the S wind changes have been associated more with the movement of the heat trough – inland and then coming to the coast.
A southerly wind change is expected up along the NSW coast on New Years Day. S-SE winds are expected on TUE 2nd with high pressure back over the Bight and a heat trough over northern NSW and SE QLD. The high pressure is expected to shift east and develop a centre off E coast of TAS during WED 3rd while the trough remains over NE NSW and SE QLD. The situation is slow to change over the following 2 days; the high tracking east over the southern Tasman Sea and the trough system slowly pulling back to inland QLD. Onshore SE-E wind expected to persist along the north coast of NSW and SE coast of QLD across the race period.
Forecast models are in quite good agreement, but vary in some of the detail – expected when this far out from the race.
WIND S-SSE/16-22 settling SE/15-20 during the day easing to SE/10-15 at night.
WEATHER fairly cloudy with a morning shower or 2.
WEATHER mostly cloudy with a few showers at the coast – more showers/T’storms inland over NE NSW.
WEATHER mostly cloudy with more frequent showers at the coast – showers/T’storms inland.
WEATHER fairly cloudy – a few showers
DR Roger Badham