It would be a lovely Christmas present but as surface pressures are a tad high at the moment, the opportunity for a thunderstorm in Canterbury look very unlikely at the moment, sadlyRazor wrote:Xmas Day storms for Canterbury????
http://www.metvuw.com/forecast/forecast ... nz&tim=156
There is a need for surface hPas to drop to 990hPa or below, at the moment to get things going, an active upper level trough, also, moving across,but we haven't got that
Blame a weak La Nina at the moment
Anticyclones are seeming to position themselves around the Chatham Islands instead of the Tasman Sea.
JohnGaul
NZTS