NZ Weather Forum

The upper trough will be parked over us today and the upper air is quite cold 500mb-22C. Daytime heating will produce instability from Northland to Waitomo, CAPE values up to 800j/kg. Have to see how the low level convergence plays out but the gfs indicates a convergence line in place over Northland down to just west of Auckland. So a few thunderstorms should fire up this afternoon with the activity drifting southward. Small hail likely.

A convergence line formed over Auckland yesterday afternoon, a low top cloud line with a few showers by evening.

yes,that looked great from here, was a good layer of instability, great looking cloud bases

MetService's 8am Severe Thunderstorm Outlook update now has that risk for later today. And yes, they've now included small hail.

talking about (small) hail, there was a report of it falling not far from here during mondays active warm front thunderstorm

ohhhh low risk of sever storms for northland tomorrow!!!!

I see there is a line of showers already on the north shore...

Manukau heads obs wrote:I see there is a line of showers already on the north shore...

Those showers wont do any good. Starting too early. I suspect they will only pollute the surronding atmosphere with cold air.

shower just passed to the NW of me has gone glaciated already,anvil and all

M/S put out a nice graphic of the lightning strikes yesterday via their facebook feed
I guess it could be re posted here?

More NE breeze today which should keep out sea breeze convergece. Some towering Cu and isolated showers about.
A pleasant 19C, dewpoint 13C.
Edit, I see a line of showers has developed near Auckland/Northland west coast with isolated thunderstorms.

nice CB just off the coast here, real black
inflow shelf cloud and all

Had a high of 20.1 here today, warmer than yesterday & the first time my station has hit 20C since May. A dry day.

yea brian, thats a massive and ominous looking thunderstorm going by the looks of the radar..

can see good CB tops to my SE, in the waikato, and am picking up strikes from them
rain radar shows to be on the Kaimais
Tim?

Havent heard any thunder... i was outside and i got soaked!!!!

Cloudy and very unstructured to the NE Brian from my view anyway.

NW looks a bit better......

SW looks best

Puhoi Tornado/funnel Video - posted on facebook by Times FM (Orewa radio station). Looks like it briefly touched down. My guess is around about 10:30am?

Comments by Metservice at Stuff - Tornado hits near Puhoi tunnel

And comments by WeatherWatch at NZ Herald - Small tornado north of Auckland



Edit: May have been a little earlier going by the radar...
.

Thanks for finding the video, definitely a tornado

good stuff

Could see the shower clouds building over North Auckland this morning, good to see that clip.

Interesting tornado report.

Looks like the convergence will be more over Auckland tomorrow so we should see showers, unlike today which was mainly fine.

12Z gfs points to a nice day for Auckland with just the chance of an isolated convergence shower. We'll take that, I'm enjoying this fine mild weather.

no 2 days are the same....