General May Weather

Cyclone Tracy · Unread post by **Cyclone Tracy** » Sun 13/05/2018 09:10

23mm light on and off rain since it started yesterday. All models no match in tracking how the cut off low would move across the Tasman. One slight change and rainfall in the upper NI changes drastically on each run. UKMet run for south of Auckland this morning had a 70mm downgrade from the 00z to 12z runs. Maybe another twist to come...

SSW event now starting to fully ramp up at the surface of Antarctica. Extraordinary 5 degree temp change in 10 days which is no mean feat on an area that size.

spwill · Unread post by **spwill** » Sun 13/05/2018 10:43

Greylynn got 23.8mm last 24hrs. Brighter conditions into Auckland now and 20C

NZstorm · Unread post by **NZstorm** » Sun 13/05/2018 10:53

Some seriously cold temps in the deep south earlier this morning where the ridging allowed for frost. Dunedin Airport got down to -3C and Invercargill Airport -2C and there was freezing fog at both locations.

Richard · Unread post by **Richard** » Sun 13/05/2018 12:09

Steady light rain here all morning

Cyclone Tracy · Unread post by **Cyclone Tracy** » Sun 13/05/2018 13:13

ATM, 21.7c and a 19.4c DP with sun out.

spwill · Unread post by **spwill** » Sun 13/05/2018 13:41

Almost a Summer like afternoon with the dewpoint up to 19C, partly cloudy 22C

TonyT · Unread post by **TonyT** » Sun 13/05/2018 14:33

So much for Stormageddon.

NZstorm · Unread post by **NZstorm** » Sun 13/05/2018 15:58

I see Whangarei, Auckland, Hamilton got to 22C today and the coolest spot Alexandra on 4C (airport data).

NZ Thunderstorm Soc · Sun 13/05/2018 16:11

Nice one Tony

Cold old stagnant day down here with not much wind and lots of broken cloud.
Staggering to get above 8C

How about BoringWeatherageddon?

Andy · Unread post by **Andy** » Sun 13/05/2018 18:40

cold day here peaking at 5, good old fog day!

melja · Unread post by **melja** » Sun 13/05/2018 18:50

Very wet in Picton this morning, no rain gauge on my boat tho.

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David · Unread post by **David** » Sun 13/05/2018 19:54

Took this pic while out walking early afternoon, we had beautiful warm sunny conditions, with 21C at the time. Unexpectedly nice day given the forecast only 1-2 days prior.

TonyT · Unread post by **TonyT** » Sun 13/05/2018 20:15

David wrote: Sun 13/05/2018 19:54 Took this pic while out walking early afternoon, we had beautiful warm sunny conditions, with 21C at the time. Unexpectedly nice day given the forecast only 1-2 days prior.

Sunmaggedon. Stormagongone.

NZstorm · Unread post by **NZstorm** » Sun 13/05/2018 21:24

Hoping we can catch thundergeddon one day this week.

NZstorm · Unread post by **NZstorm** » Mon 14/05/2018 06:37

I see Dunedin Airport currently on -4C. I wouldn't have expected a frost that severe at Dunedin Airport considering the airmass is not unduly cold. Queenstown showing -2C.

Unexpected thunderstorms for Taranaki this morning with 20mm in an hr. An MCS came in off the Tasman Sea. More thunderstorms for that area next 2-3 days. As far north as Raglan overnight tonight.

Tornado risk late Tuesday. I base that on the GFS 850mb winds strengthening to 35knots late tomorrow which increases low level shear.

shovelopikis · Unread post by **shovelopikis** » Mon 14/05/2018 07:53

NZstorm wrote: Mon 14/05/2018 06:37 I see Dunedin Airport currently on -4C. I wouldn't have expected a frost that severe at Dunedin Airport considering the airmass is not unduly cold. Queenstown showing -2C.

Unexpected thunderstorms for Taranaki this morning with 20mm in an hr. An MCS came in off the Tasman Sea. More thunderstorms for that area next 2-3 days. As far north as Raglan overnight tonight.

Tornado risk late Tuesday. I base that on the GFS 850mb winds strengthening to 35knots late tomorrow which increases low level shear.

Loud stuff...woke us all up from around 2am and just kept coming from every direction until 5am.

Cyclone Tracy · Unread post by **Cyclone Tracy** » Mon 14/05/2018 08:12

Up to 37.2mm since the moist northerly came in on Friday. A bit of drizzle this morning with a juicy 17c Dew point.

Latest EC run 12Z starting to ramp up a lot of sea level snow within 8 days for the SI. Even around Christchurch in places like Sumner getting some. Need a few more runs to verify of course but something is brewing

Razor · Unread post by **Razor** » Mon 14/05/2018 08:14

TonyT wrote: Sun 13/05/2018 14:33 So much for Stormageddon.

The relentless cloud and insane patchy drizzle here the past 24 hours must be a record breaker, surely? And the wind, wow not a breath of it. How can this not be front page screaming headlines?

melja · Unread post by **melja** » Mon 14/05/2018 08:18

Now TC has mentioned snow just wait for it.

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spwill · Unread post by **spwill** » Mon 14/05/2018 09:08

There should be quite a bit of sunshine for Auckland today so temperatures will be well above average again.
We still have the subtropical air over us tomorrow but the day looks cloudier.

harleyb · Unread post by **harleyb** » Mon 14/05/2018 09:46

Razor wrote: Mon 14/05/2018 08:14
TonyT wrote: Sun 13/05/2018 14:33 So much for Stormageddon.
The relentless cloud and insane patchy drizzle here the past 24 hours must be a record breaker, surely? And the wind, wow not a breath of it. How can this not be front page screaming headlines?

"Drizzleageddon". You saw it here first.

CbFan · Unread post by **CbFan** » Mon 14/05/2018 10:17

48Hrs Midnight Friday to Midnight Sunday - 178mm through the gauge at Matauri Bay
180mm at Weta Trig (Touwai)

Capture.JPG

Brings the YTD total to 962mm for here

David · Unread post by **David** » Mon 14/05/2018 10:58

NZstorm wrote: Mon 14/05/2018 06:37 I see Dunedin Airport currently on -4C. I wouldn't have expected a frost that severe at Dunedin Airport considering the airmass is not unduly cold. Queenstown showing -2C.

Frostmageddon!

David · Unread post by **David** » Mon 14/05/2018 11:00

Cyclone Tracy wrote: Mon 14/05/2018 08:12 Up to 37.2mm since the moist northerly came in on Friday.

Similar here, 36mm total after an extra 12mm overnight.

Cyclone Tracy · Unread post by **Cyclone Tracy** » Mon 14/05/2018 12:50

12z run EC, New GFS and CFS are picking up a polar vortex super pulse in the 8 to 10 day zone. -35 to -40c at 500 hPa over the SI. Starting to become quite interesting ....

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