Waitakeres offer alot of protection to AK City/North Shore in a westerly, even when the air is deeply unstable. But in a southwesterly, no protection. And Manukau suburbs cop it on an unstable westerly.
Re unstable weather pending. Judging by models air will turn deeply unstable(thunderstorms) later next week over NZ. But at this stage thats a long way off.
NZstorm wrote:Re unstable weather pending. Judging by models air will turn deeply unstable(thunderstorms) later next week over NZ. But at this stage thats a long way off.
Well MetService are predicting the possibilty of thunderstorms developing over the plains tomorrow.
See what happens?
Upper air over NZ is quite cool for the time of year. 500hpa at Invercargill today is -18. The rather steep lapse rates combined with some surface convergence tomorrow (sthly change vs NE) may lead to Isolated cb/ts formation over Canterbury . As you say John, see what happens.
Overcaste and cool in AK. Big inversion sitting over us with quite a cool atmodphere. 850hpa temp just 4C. Thats more typical of winter.
Stupid february. I was looking foward to temps of over 30c. Now it's hovering around 19-24c, and the minimum temps are slowly creeping down to that frost mark, next month expected. Though it's nice with next to no wind in the past few days.
NZstorm wrote:Upper air over NZ is quite cool for the time of year. 500hpa at Invercargill today is -18. The rather steep lapse rates combined with some surface convergence tomorrow (sthly change vs NE) may lead to Isolated cb/ts formation over Canterbury . As you say John, see what happens.
Yes. Lets see what happens
As Deano said:
Another clear warm day with only a thin layer of high cloud
Could have this Overcaste cold gloom over Auckland until Wendsday, hope not. The March sunshine has not been able to burn it off so we need a change in air mass or wind.
Looks like that tropical low might turn into a cyclone on Saturday,adding more rain to the 2150mm that has fallen in Cairns so far in 2004.
May slide down towards NZ as well .
It would be interesting to see that active low up to the NE of NZ come down this way but long Range charts keep that activity up there . There looks to be a strong run of Highs moving in to the central Tasman keeping NZ largely in cool SW flow and very uninteresting.