Unstable Sunday 5th to Monday 6th North Island

Manukau heads obs · Sun 05/05/2013 21:38

Wind has ramped up here from the NW now
gusts to 45 knots so far...
make that 48 knots (89kmh) now...
barometer dropping still, now 987
rain radar shows an area of even stronger WNW winds moving this way
also you can see the center of the low W of new plymouth....slow moving at the moment

David · Unread post by **David** » Sun 05/05/2013 21:48

Not too windy out this way, I've recorded 40 km/h max so far. Pretty unusual to get above 60 km/h in a NW flow here...

David · Unread post by **David** » Sun 05/05/2013 22:51

Certainly some heavy showers around, just got 5mm in 10 minutes. I see you're up to 56 knots Brian! (103 kph)
I wonder if you'll reach 130 kph overnight

Manukau heads obs · Sun 05/05/2013 23:48

woke me up....60 knot gusts (111kmh)
and its trending up still...

Manukau heads obs · Mon 06/05/2013 05:50

wow, I see the Manukau heads signal station has been over 80 kts gusts, over 60 kts average...just after midnight...

NZstorm · Unread post by **NZstorm** » Mon 06/05/2013 07:40

I see the airport had a peak gust of 48knots early this morning. Grey Lynn only 30knots.

12Z NZWP sounding had 60knots at 850mb!

Nev · Unread post by **Nev** » Mon 06/05/2013 08:17

'Humdinger' interview on Radio-NZ Brian.

NZstorm · Unread post by **NZstorm** » Mon 06/05/2013 08:21

Good commentary Brian.

I was out at west Auckland last hour and heavy precip there.

littleheaven · Unread post by **littleheaven** » Mon 06/05/2013 08:33

Torrential in Glenfield and the road between us and the primary school flooded. That'll make for a pleasant walk for the first day back!

Manukau heads obs · Mon 06/05/2013 08:41

No internet here,just checking in by phone
I hope they don't think humdinga is a met term

KiwiWeather · Unread post by **KiwiWeather** » Mon 06/05/2013 09:38

Lol "Humdinga" Yes, very good interview Brian.

Here is the url for those that missed it.

http://www.radionz.co.nz/national/progr ... ningreport
Manukau Heads blasted by storm
The Metservice recorded 150 kilometre per hour winds at Manukau Heads overnight. (1′48″)

David · Unread post by **David** » Mon 06/05/2013 10:09

I see Auckland airport has had 25mm since midnight, 13mm here. I only recorded a maximum gust of 60 km/h overnight.

NZstorm · Unread post by **NZstorm** » Mon 06/05/2013 10:36

David wrote:I see Auckland airport has had 25mm since midnight, 13mm here. I only recorded a maximum gust of 60 km/h overnight.

There has been one or two downpours around.

Cold on 13.7C. Like a mid winters day.

spwill · Unread post by **spwill** » Mon 06/05/2013 11:22

Humdinga weather here, our first cold day of the year with rain sometimes heavy.

Nev · Unread post by **Nev** » Mon 06/05/2013 12:08

spwill wrote:Humdinga weather here...

Assume you mean humdinger - a 'Humdinga' would probably capsize in this weather. lol

Only 8.6mm here so far since yesterday arvo, but no shortage of wind. I see the outer Gulf's Mokohinau Islands have been recording 80 km/h mean-winds this morn, so Waiheke's NW coasts probably wouldn't be too far off that.

Michael · Unread post by **Michael** » Mon 06/05/2013 12:26

The rain hasnt let up much here and been much of the night too and yesterday aftenoon too.

littleheaven · Unread post by **littleheaven** » Mon 06/05/2013 12:40

Bucketing down in Takapuna and has been for the best part of an hour. Can't believe we don't have a heavy rain warning in force. Loads of surface flooding.

Vertigo · Unread post by **Vertigo** » Mon 06/05/2013 12:47

^^ Can confirm, dont want to get lunch..

David · Unread post by **David** » Mon 06/05/2013 12:55

Only light rain here since 11am

Manukau heads obs · Mon 06/05/2013 14:15

I see the low center is about to pass right over here

wind is easing more and more, baro dropping
988 is the pressure here...it had risen slowly overnight, so the low has been filling slowly overnight

should see a SW wind change here in the next few hours

update: baro dropped to 986.4
wind is now swinging more W as the low passes here
real tight center on the rain radar...rain band going around it..passing over Waiuku area now

Nev · Unread post by **Nev** » Mon 06/05/2013 14:46

Manukau heads obs wrote:real tight center on the rain radar...rain band going around it..passing over Waiuku area now

Yeah, not often you see that Brian.

Here's a pic for posterity…

Update: Centre of low on radar overlay appears to be about 40km too far Nth, i.e. should be over Waiuku.

NZstorm · Unread post by **NZstorm** » Mon 06/05/2013 14:48

Good radar grab. Vorticity max has passed right over Auckland!

Orion · Unread post by **Orion** » Mon 06/05/2013 14:52

Remarkable!

Manukau heads obs · Mon 06/05/2013 15:28

humm, the M/S rain radar showed the center passing right over Waiuku
(which is must have because we went from NW to W to SW)
somehow your land mass is not aligned correct there Nev?

this shows a 180o wind direction swing, Waiuku, as the low center passed over

http://hamgap.atnz.net/waiuku.htm

Nev · Unread post by **Nev** » Mon 06/05/2013 15:37

Yeah, you're right Brian. That WZ image has it centred roughly over Hobsonville. Oh well.

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