A slow moving high is entering the Bight and will not approach Spence Gulf until Tuesday. Meanwhile, a trough will move through SE Queensland today, bringing perhaps 12mm of rain to the Downs. The trough will deepen to a cold front on Friday as a low form off the NSW coast, bringing strengthening and cold southerly winds.
These winds will remain strong from the southwest on Saturday, bringing potential wave conditions to the Bunya mountains. Whilst the wind will be less strong strong on Sunday, it will be less constant with altitude, making mountain wave less likely.
Saturday 10 September 2011
Dalby 18C
Stability A
Convection blue convection to 8,500ft with some wispy cloud possible
Winds SW @ 15kts
Winds will remain pretty constant in direction (within 20 degrees of the Bunya ridge) to 500hPa (20,000 ft) and also increasing in strength (or staying pretty constant). These conditions suggest wave could form on the Bunyas.
Saturday 10 September 2011
Dalby 18C
Stability A
Convection blue convection to 6,500ft
Winds SW @ 10kts
Whilst remaining strong, the wind changes direction around 10,000ft and so mountain wave is unlikely. However, some shear wave is possible due to the directional shift.
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