A Trough from July 19/20th

[Nev]

Yes sorry, bit premature there - just a brief 2mm teaser here.

[NZstorm]

Main line of heavy showers and thunderstorms is still a few hours away.

Looking like after 8pm. Latest GFS is still plotting CAPE around 800j/kg with this line which is good instability for mid winter!

[Manukau heads obs]

is the 19oC that Auckland got a record for the time of year?

[David]

is the 19oC that Auckland got a record for the time of year?

Owairaka's highest July temperature was 20.0C in 1971.
No sun here until about 3.20pm this afternoon, so my daily high is just 16.7C.

Also on another topic, one of the entrances to our local reserve is flooded, the path is submerged (blocked drainage system). At least this time the pathways weren't washed out like in late April/early May.

[jamie]

Very interesting out there this afternoon.
Very nice spring like clouds about. Sun came out for a while and the temp shot up. Made it get nice and warm.
Strange how warm it is for mid winter
Showers were building towards the west all day. A few up drafts moved just to the west so we ended up missing all showers but there were some very heavy looking ones about. Even the updrafts looked spectacular with some interesting low hanging bowl shaped cloud bases and vigorously rising clouds.
Very reminiscent of USA out there this afternoon

[Nev]

Owairaka's highest July temperature was 20.0C in 1971...

I'm pretty sure NIWA base their current and historical Auckland temps (and sunshine) on Mangere figures. Only rainfall is based on Owairaka figures.

[NZ Thunderstorm Soc]

I have reduced the title of this topic to Trough as I don't think it will be major enough now,sadly ,to maintain the title of this topic as being a Major trough.
.....thats global warming for you
JohnGaul
NZTS

[Vertigo]

damn, its lightning active in the tasman tonight, and just about to hit us.

[Manukau heads obs]

just had a brief but very heavy shower go through here...very big drops of rain

[Manukau heads obs]

check out the marine outlook:

Outlook:Monday:Westerly easing to 10 knots in the afternoon, tending northerly 15 knots at night. Cloud increasing. Tuesday: Northerly rising to 45 knots in exposed places in the morning

you dont see that sort of confidence in windspeeds that far out very often!

[Michael]

Lightning flashing to the SSW now 3x no thunder yet.

[jamie]

just had a brief but very heavy shower. Sounded like huge rain drops too. Couldnt hear the tv it was that loud.

[David]

Squally light shower went though here, peak gust was 52km/h. Shortly followed by 2 lightning flashes to the east with thunder.

In my opinion, the satellite loop seems to suggest the best CBs are yet to come, there isn't much activity around this evening.

[jamie]

getting a good shower with hail stones throwen into the mix. Can hear them tinging on the iron over the heavy rain.

[Vertigo]

are you still in hamilton, j-me?

[Manukau heads obs]

he is at the moment....during varsity hols

[Michael]

The condensation today is bad,ie its 10°c outside and its on all windows top to bottom and every side of the house not the wind facing ones and equivalent to the 0 and 1° days a week or so back.

[Nev]

Michael, you obviously either live in a very damp house or have gas-heating?
Get a dehumidifier!

[jamie]

are you still in hamilton, j-me?

Yep heading back to the big smoke today

[spwill]

Just very isolated storm activity for the Auckland region overnight, last nights Front was much more active over Northland .

[Vertigo]

heavy rain passing over at the moment, interfering with sky tv! flooding all over the property!

[jamie]

heavy rain passing over at the moment, interfering with sky tv! flooding all over the property!

Hmmm yes we just had sky interferance down here too but no rain yet from it, but there is a very nasty looking cloud moving in from the west

[David]

Just had a deluge through here. Very heavy rainfall with some hail near the end of the shower. Plenty of surface flooding, 5.6mm rainfall in 10mins.

[Vertigo]

amazing Cb structure as it left, quite obviously still in the growing stage. even with the speed it was moving, the anvil was spreading backwards faster! nice inflow too, should be giving east auckand some hell about now.

[spwill]

Have been hearing quite a bit of distant thunder here from a large Cb just to our SW.