General October Weather

Tornado Tim · Unread post by **Tornado Tim** » Sun 21/10/2012 10:34

Yes, definitely looks like an elevated storm setup. Haven't had one of these in a while now

Forecast soundings showing that 850mb is completely saturated throughout the day and into the evening extending the risk till then. Upper temps look fairly favorable at -17 to -18°C.
The Lifted Index can't be used in a situation like today to gauge lift as that is based on lifting parcels of air from the surface.

David · Unread post by **David** » Sun 21/10/2012 10:57

A chilly wet Sunday, finally gave in and put the heat pump on

NZstorm · Unread post by **NZstorm** » Sun 21/10/2012 11:22

Moisture chart showing the moisture plume coming onto the North Island this morning.

Classic warm frontal set up!

Patchy rain here with short heavy bursts from elevated convection. Rain will be south of Auckland this afternoon.

Chart is mixing ratio, not dewpoint.

Michael · Unread post by **Michael** » Sun 21/10/2012 11:47

not a lot of wind today but cold and wet.

spwill · Unread post by **spwill** » Sun 21/10/2012 11:51

Has been damp and murky this morning, temperature/ dewpoint coming up now, little or no wind here so far

Quite lightning active west of the NI this morning , Waikato may be in line for some of that this afternoon

Manukau heads obs · Sun 21/10/2012 12:01

little or no wind here so far

its a classic pressure wind setup
we have 'river of strong winds' on this side, i.e a pressure wind
i.e the NW wind does not want to blow over the land of the upper NI
and instead goes around it...i.e the wind is gale on this side and the outer hauraki gulf and eastern coromandel area and also Russel in the bay of islands, since it sticks out into the pressure wind, is also getting a gale (or near gale)
(I have been there in a good NW blow, its just like here )

Michael · Unread post by **Michael** » Sun 21/10/2012 12:38

The SW wind does it over the south island,like you look at the surface pressure maps on Weather UK online the south island provides it and can be seen west of the south island and east of banks peninsular.

Manukau heads obs wrote:
little or no wind here so far
its a classic pressure wind setup
we have 'river of strong winds' on this side, i.e a pressure wind
i.e the NW wind does not want to blow over the land of the upper NI
and instead goes around it...i.e the wind is gale on this side and the outer hauraki gulf and eastern coromandel area and also Russel in the bay of islands, since it sticks out into the pressure wind, is also getting a gale (or near gale)
(I have been there in a good NW blow, its just like here )

Manukau heads obs · Sun 21/10/2012 13:35

looks like waiuku would have got a couple of rolls of thunder

looks like some new blow up plumes developing on the warm front a bit futher north than before
we might be more in the firing line for later today...

spwill · Unread post by **spwill** » Sun 21/10/2012 13:51

Yes, thundery rain for South Auckland/Waikato, not good chase weather though.

jamie · Unread post by **jamie** » Sun 21/10/2012 14:00

Lots of long rumbles of thunder with heavy rain here. Awesome!

jamie · Unread post by **jamie** » Sun 21/10/2012 14:25

Ripper thunder that was less than 3 seconds after flash and rumble lasted well over 30 seconds!!!!!!

Tornado Tim · Unread post by **Tornado Tim** » Sun 21/10/2012 14:31

yea good thunder here too

David · Unread post by **David** » Sun 21/10/2012 14:50

More rain than I expected here with 12mm. Great! (it has been a bit drier this month)

I see it's 25°C in Napier

Manukau heads obs · Sun 21/10/2012 17:03

105kmh gusts through here now, as the frontal boundary moves through

NZstorm · Unread post by **NZstorm** » Sun 21/10/2012 21:04

In a nutshell looks like 20-40mm fell over Auckland/Waikato today and over 100mm is parts of Waitomo.(environment Waikato data)

Still showers, 16C here now but looking forward to a dry day tomorrow!

Manukau heads obs · Sun 21/10/2012 21:10

barometer starting to rise here and the temperature has come up a notch more
and the wind starting to slowly ease here now (still gusting to 50 knots though)
(its so noisy at times you cant hear the tv!)

NZstorm · Unread post by **NZstorm** » Sun 21/10/2012 21:15

Manukau heads obs wrote: (its so noisy at times you cant hear the tv!)

Light winds here but the odd gust coming through!

Orion · Unread post by **Orion** » Mon 22/10/2012 05:17

Rain at the moment, getting heavier.
7.1 degrees.

Orion · Unread post by **Orion** » Mon 22/10/2012 05:52

Strong wind and lashing rain;
4.5 degrees now.

Orion · Unread post by **Orion** » Mon 22/10/2012 06:48

Temp. still falling; down to 2.7 degrees now and little bits of Stuff melting amid the raindrops on the car.

Dean. · Unread post by **Dean.** » Mon 22/10/2012 07:00

Snow falling since 6am here in Tekapo

snowstormwatcher · Unread post by **snowstormwatcher** » Mon 22/10/2012 07:03

Snowing heavily here. 1-2cm on the ground.
0.6 degrees.

Richard · Unread post by **Richard** » Mon 22/10/2012 07:24

snowing !! .suns still out here with a NW wind but certainly the clouds to the south look impressive

Orion · Unread post by **Orion** » Mon 22/10/2012 07:26

2.2 deg. here and a mix of rain and snow, a little buildup beginning on the car.
[There was a Labour Weekend back in the mid to late '80s where there was a good half-inch of snow on the ground in Ashburton - someone will have the records, I'm sure. Also around Show Weekend 1976. Extraordinary climate!]

Richard · Unread post by **Richard** » Mon 22/10/2012 07:43

The clouds to the south are looking thundery now,wouldn't be surprised if there is a rumble or two when the system gets here

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