General March Weather

[David]

I foolishly went for a run and got caught in that massive deluge, 12mm in 20 minutes. Dripping wet from head to toe...

[NZ Thunderstorm Soc]

I fear that's a forecast for Mr Root, not Mr Williamson

A 5 day test seems very unlikely after yesterday

Probably end up in a draw

[NZ Thunderstorm Soc]

Heard here as well....its been a long time between rumbles.

You get more rumbles of thunder heard up there than down here, but mind you it has been quite rumbly down here in Geraldine, since we moved here than what it was when we lived in West Melton.

[NZstorm]

You get more rumbles of thunder heard up there than down here, but mind you it has been quite rumbly down here in Geraldine, since we moved here than what it was when we lived in West Melton.

Models like south Canterbury for possible storm/hail this afternoon.

Will be keeping an eye out for anything interesting eventuating locally in the Auckland area today also.

6pm 500mb chart. Decent upper level trough moving onto NZ.

[NZstorm]

I have picked up 30mm from heavy showers since yesterday.

[spwill]

A sunny warm morning here, current 22C, dp 18C, see what can develop this afternoon.

Instability is widespread across NZ today, thunder risk for much of NZ today

Should be clear for the cricket at Eden Park tomorrow and Monday

[jamie]

Good thunderstorm passing over here. Plenty of lightning. Saw a CG too.

[NZstorm]

Just observed thunder here. Heavy precip to NNW.

[NZ Thunderstorm Soc]

Models like south Canterbury for possible storm/hail this afternoon.

I see that but not looking really promising , well, at the moment.

[David]

Uninteresting day here so far. Just scattered moderate rain showers. Earlier TS activity to the west appears to have died out.

[Simon Culling]

I notice that there have been a dozen or so lightning strikes around Gore (and to its SE) recently (21hrs NZ time). Is it unusual for there to be late evening storms in this part of NZ during early autumn?

[tgsnoopy]

Survived a first wave, but radar showing more coming. Fortunately it was short lived, fast moving, extremely heavy rain.

http://www.metservice.com/warnings/seve ... torm-watch

SEVERE THUNDERSTORM WATCH

Valid to: 11:00am Sunday 25 Mar 2018
Issued at: 8:27pm Saturday 24 Mar 2018

thunderstormWatchImageb.gif

SEVERE THUNDERSTORM WATCH

Issued by MetService at 08:27 pm Saturday 24 March 2018
Valid until 08:00 am Sunday 25 March 2018
This watch affects people in the following weather forecast districts:
Auckland
Great Barrier Island
Coromandel Peninsula
Waikato
Bay of Plenty

Thunderstorms embedded in a rain band, could become SEVERE in eastern parts of Auckland, eastern parts of Waikato and in Coromandel, from late Saturday evening into Sunday morning. These SEVERE thunderstorms have the potential to bring localised downpours of 25 to 40mm/hr.

Rainfall of this intensity can cause surface and/or flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips.

Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.

Note: A Severe Thunderstorm Watch means conditions are favourable for severe thunderstorms in and close to the watch area. People in these areas should be on the lookout for threatening weather conditions and monitor for possible Severe Thunderstorm Warnings.

For information on preparing for and keeping safe during a storm, see the Civil Defence Get Ready Get Thru website

Issued by: Hordur Thordarson

This watch will be updated by: 08:00 am Sunday 25 March 2018

SEVERE THUNDERSTORM WATCH

Issued by MetService at 08:27 pm Saturday 24 March 2018
Valid until 11:00 am Sunday 25 March 2018
This watch affects people in the following weather forecast districts:
Bay of Plenty
Rotorua

Thunderstorms embedded in a rain band are expected to affect the Bay of Plenty and Rotorua Sunday morning. Some of these thunderstorms could become SEVERE. These SEVERE thunderstorms if they occur have the potential to bring localised downpours of 25 to 40mm/hr.

Rainfall of this intensity can cause surface and/or flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips. Driving conditions will also be hazardous with surface flooding and poor visibility in heavy rain.

Note: A Severe Thunderstorm Watch means conditions are favourable for severe thunderstorms in and close to the watch area. People in these areas should be on the lookout for threatening weather conditions and monitor for possible Severe Thunderstorm Warnings.

For information on preparing for and keeping safe during a storm, see the Civil Defence Get Ready Get Thru website

Issued by: Hordur Thordarson

This watch will be updated by: 10:00 am Sunday 25 March 2018

[NZstorm]

I notice that there have been a dozen or so lightning strikes around Gore (and to its SE) recently (21hrs NZ time). Is it unusual for there to be late evening storms in this part of NZ during early autumn?

Yes a bit unusual. Divergence aloft is a primary trigger for this type of storm.

[NZstorm]

K index chart for 10am today. The 500mb trough still across the South Island this morning and the front gradually exiting the North Island. Will be a fine warm day in Auckland for cricket.

[Richard]

I notice that there have been a dozen or so lightning strikes around Gore (and to its SE) recently (21hrs NZ time). Is it unusual for there to be late evening storms in this part of NZ during early autumn?

Yes that is late for this time year

[NZ Thunderstorm Soc]

Lot of activity in the south Tasman Sea this evening as a result of an energetic looking trough moving into the area.

[NZstorm]

A fine day but some heavy showers have developed W Auckland. I see Henderson got 16mm in under 30mins.

update
A PWS near Waimauku showing 39mm in an hour to 6.30pm.

[SnwAddct]

A fine day but some heavy showers have developed W Auckland. I see Henderson got 16mm in under 30mins.

Is there a public site available for Henderson area? How would one view this? Ta

[Orion]

Saturday March 24: heard half a dozen peals of thunder in late afternoon/early evening from those systems that came down from north.
Sunday March 25: observed a red rainbow around sunrise, stunning sight.
Today Tuesday March 27: very red sunrise sky; northerly wind rose sharply around 8:30am & has been quite gusty since.

[Cyclone Tracy]

For anyone who maybe interested, UKMet has now taken over from EC as the most accurate global weather model in the southern hemisphere over the last 5 weeks. Latest reports on 120 hours and 144 hours @ 500 hPa from NOAA. UKmet is running over 90% accuracy to 120 hours

[RODALCO]

IMG_5765.JPG

Couple of pics I took from my van at Lincoln Road intersection this Monday 26 th. Almost looks like a wallcloud forming. A good friend of mine saw the same at Hepburn Road with a lot of rotation in the clouds.

IMG_5767.JPG

[spwill]

That shower looked good from here, some convergence over West Auckland that day and quite a lot of humidity on Monday afternoon, dp was 19C.

Looking forward to some nice Easter weather with plenty of sunshine on the cards.

[NZstorm]

Grey Lynn showing 27C currently.

[NZstorm]

A very traditional looking thunderstorm set up over South Canterbury later Saturday with 700mb temps down to -8C. Last time we saw air that cold over NZ was November.

[NZ Thunderstorm Soc]

A very traditional looking thunderstorm set up over South Canterbury later Saturday with 700mb temps down to -8C. Last time we saw air that cold over NZ was November.

Yes. I'll be around to keep an eye on this, but I have a do to go to in Rakaia tomorrow night.