Thought it might be useful to have discussion for stormy weather over the north tomorrow in a separate thread, as there is likely to be a lot of southern snow excitement in the other thread
Metservice are going for a high risk of thunder with hail and strong wind gusts for Northland and Auckland, and a moderate risk of squalls of 120 km/h or more. Moderate risk of thunderstorms in Wellington also.
Tomorrow morning:
Valid to: Noon Tuesday 28 May 2013
Issued at: 8:34pm Monday 27 May 2013
Deep instability and a strongly distubed west to southwest flow should move over northern New Zealand during Tuesday morning, bringing a high risk of thunderstorms and squally showers to Northland, Auckland and Coromandel Peninsula. Along with heavy showers and hail, damaging wind gusts of 120 km/h and even stronger are possible. A Severe Thunderstorm Watch for the possibility of damaging wind gusts in these areas has been issued. A moderate risk of squally thunderstorms with hail extends over western areas from Waikato down to Wanganui before dawn.
Elsewhere over the North Island, there is mostly a low risk of thunderstorms occuring, apart from Wairarapa. In Wairarapa there is a moderate risk of thunderstorms, which may bring snow down to 200 metres, and produce hail and strong wind gusts of 90 to 110 km/h.
The cold and disturbed southerly flow should start to slowly ease over the South Island during the morning. However, there is a low risk of a few thunderstorms in southern Fiordland, Southland, Clutha and coastal Otago, coastal Canterbury north of about Ashburton, and coastal Marlborough.
tsOutlook28May2013AM.png
Tomorrow afternoon:
Issued at: 8:38pm Monday 27 May 2013
The disturbed and very cold southwest flow should continue to affect central and northern New Zealand during Tuesday afternoon and evening. The high risk of thunderstorms and squally heavy showers with hail are expected to continue in Northland, Auckland and Coromandel Peninsula. Southwest gales with damaging gusts of 120 km/h and possibly stronger are expected at times through the afternoon, as detailed in the Severe Thunderstorm Watch.
About central New Zealand, in Wairarapa and Wellington, the cold southerly flow is exepected to intensify and could gust to 110 km/h in exposed places at times.Additionally snow could lower to 200 metres in heavy snow showers and hail is likely. There is a moderate risk in the afternoon and evening of thunderstorms about Wellington, Wairarapa and Mahia Peninsula.
Elsewhere over the North Island, and in the east of South Island north of Rakaia,there is low risk of a few thunderstorms during the afternoon.
tsOutlook28May2013PM.png
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Down to 9.8 degrees here, almost midnight. 87% humidity, DP 7.7. Looking forward to seeing some good storms tomorrow. Met Service have had a severe thunderstorm watch up for tomorrow since this morning, before they'd updated the outlook to that shown above.
Torrential rain and what sounds like a few hail stones pinging off the roof here in Glenfield. Still awake at 2am courtesy of the adrenaline rush caused by finding a massive Gisborne cockroach in my bedroom. *shudder*
No hail here yet and I am supposed to be working outside today!
With the cold airmass and strong divergence aloft, isolated charge separation/thunder on the cards today. I wouldn't call this type of set up a high thunderstorm risk though.
could be some flooding of low lying areas around the manukau harbour today
King tide
Gale onshore, blowing the water in, relatively low air pressure, and very big coast swell
Further south, winds had ripped off the roof and blown out the windows of the Port Waikato home this morning.
Fire Service northern communications spokesman Jaron Phillips said emergency services had only just arrived on the scene on the Tuakau Bridge-Port Waikato Rd.
"The occupant has described it as a tornado," he said
Likely a small tornado, as the winds are squally but not unusually so, ie not enough to do any damage
Interesting how the way journos quote can change the emphasis somewhat. This is how TV3 quotes the Fire Service spokesman...
"It sounds like it could be a tornado or something like that, "Mr Phillips told NZ Newswire this morning. "It certainly sounds like something's going on out there so we're heading out there now." He said weather-related calls had been coming in fast, with multiple calls about power lines down in high winds.
No small hail in rain here in Kamo - but those raindrops have a chilly stingy bite to them.
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it is the epitome of human arrogance superceeding all other forms of tyranny so far.
There is a lot of crap on the radar moving up past Taranaki and all heading for Auckland. I dont think we will get much in hamilton with this wind flow. Just minor stuff i think.
