General June Weather

[Sandi]

Bright flashes and loud thunder only a few seconds apart before the rinse and repeat cycle. Heavy rain.

[jamie]

Just had a massive crash of thunder and now more rain.

[Manukau heads obs]

we reached the days high of 17C at just before 5am
now that's backwards, lol

[Nev]

There were reports of a possible tornado(s) in Waipu, south of Whangarei yesterday afternoon...

''Mini tornado' rips through rural Northland area' - Stuff

There was T-storm activity there around that time. The only thing that bothers me is that, unless they were separate incidents, the 2 nearby damage reports tend to suggest a west to east path, which doesn't really sound feasible in a northerly flow?

Not sure of the exact time, but grabbed this (zoomed) 2pm radar image...

[NZstorm]

Thanks for the report Nev. I did mention the risk of an isolated tornado report for yesterday so not surprised.

[spwill]

There was a tornado in the Waipu area in July 2011.

A disturbed pattern ahead, I notice SE Australia looks better placed for the cold systems.

[Tornado Tim]

Just had a massive crash of thunder and now more rain.

Some massive +CG's last night with very large amplitude signatures.

The resulting thunder we got was incredible

Last 24 hour activity:

[Bradley]

Oh if only! things are desperate when you have to look 2 weeks in the future for a decent cold snap!!

[NZ Thunderstorm Soc]

Just had a massive crash of thunder

I've forgotten what the sound of thunder sounds like?
Got to look up Youtube, these days!!!

[einzack]

Yesterdays high temp was set at 7:54pm and todays is (so far) set at 10:22pm and still rising. Pity those temps are a paltry 12.6°C and 11.3°C respectively. But seems unusual any time of the year.

[treetop]

Looks like a settled spell end of nxt week with high pressure to the south.

[spwill]

Some thunder/hail for the western North Island on Sunday.

[NZstorm]

Some thunder/hail for the western North Island on Sunday.

Looking like the prospect of some thunder behind the warm front tomorrow pm as well.

Sunday looking cold upstairs 500mb -25C.

[Tornado Tim]

Some thunder/hail for the western North Island on Sunday.

Looking like the prospect of some thunder behind the warm front tomorrow pm as well.

Sunday looking cold upstairs 500mb -25C.

Indeed, Warm front over NorthLand then cold front coming in behind, should be quite interesting. Upper level flow seems favourable too for some good lifting dynamics.

Remodelled MS T-storm Outlook attached For Saturday:

[NZstorm]

Yes, fingers crossed for a lightning show Saturday evening.

06Z 6pm numbers on ukmet look encouraging with all the indices favouring convection! TT 54, K 32, lapse rates 7.1C.

[tgsnoopy]

Lots of evidence of heavy rainfall in my travels for work today. The rooster tail from the spillways at Matahina dam were not as impressive in the Edgecumbe Aug 04 event, but still quite significant. Lots of slips, washouts and flooding in the Eastern BOP.

[spwill]

An active line of thunderstorms forming on the front to our NW in the Tasman, something to watch for this evening.

[NZstorm]

An active line of thunderstorms forming on the front to our NW in the Tasman, something to watch for this evening.

GFS favours Taranaki and Waitomo tonight and tomorrow for the showers/storms. But no doubt some cb/thunder on Aucklands west coast tomorrow.

Monday morning could be more active for Auckland possibly.

[spwill]

Best chance for a storm this evening looks like the top of Northland and the western coastline from Raglan to the south. Some thunderstorm activity onto the top of Northland now.

[Nev]

Looks like there was quite a lot of activity just north of New Plymouth last night.

Overnight temps of around 16C here last night, which was again warmer than during the day yesterday.

Another 15mm here yesterday, which on top of the 44mm on Wed/Thu is certainly making up for the lack of decent rain prior to that for this month.

[NZstorm]

I looked out the door about 7.15am this morning just in time to see a lightning out to the west. But cb line looked mushy and weak and not a lot has happened with the front currently crossing.

When you look at the 500mb analysis there is a shortwave crossing later today. That might generate an uptick is lightning probs.

Also another shortwave tomorrow morning.

June has been like May with the rainfall coming in the last 10 days of the month.

[Manukau heads obs]

nice CB passing by to my west currently
can hear thunder

[Manukau heads obs]

photo

[NZstorm]

There is an orographic thunderstorm in the eastern Bay of Plenty ranges. Interesting to see.

[Bradley]

Looking like the potential for the first severe frosts for the Canterbury region on Saturday and Sunday, after some fairly cold air pushes through on Thursday and early Friday it clears out quickly for some blue skies and light winds - bye bye the last of the aphids and even some flies that are still hanging around