Tasman Low and Ex-TC Cook - Apr 12-14

[NZ Thunderstorm Soc]

Rainfall totals over the last few days in and around northern North Canterbury, here 63mm , Waiau 53mm, Cheviot 125.4mm. So nice to have saturated country side after two years of below average rainfalls.

Good to hear about those totals, Richard.
No one has come up here about this event.
Some of the dry rivers up there would of had some water in them?

[Richard]

Some of the dry rivers up there would of had some water in them?

Every stream has water now

[Simon Culling]

Is it not a concern that a number of Met Service AWS lost power and failed to capture the most important data when the storm was at its most powerful? Would these stations not have battery back-up? This is not a criticism of Met Service, just a question.

[Manukau heads obs]

I think it was more likely a communication loss
(there was though widespread power cuts due to trees down)
e.g Cell tower that it used or similar?

if there was battery back up, eg at the Whakatane airport station, I wonder then if the data was logged and so could be retrieved
as the wind did peak a bit higher, from eye witness accounts, after the data updates stopped
so the 100kmh gust could easily have been beaten (you would think so given the tree damage etc)
(we average 100kmh here sometimes, lol)

[Nev]

Good question Simon. And yes, I would have thought most AWS's had solar panels or backup power. I've also never seen so many AWS's fail at pretty much the same time. So yes, perhaps MS meant 'lost communication', rather than 'lost power'? And yes, they probably also have data-loggers, although that info may need to be retrieved manually. MS also seemed to be having issues with their Your Weather, as when I checked earlier, all their PWS info was displayed, but none of their own AWS info was.

[jamie]

Further stop bank breaches in the hauraki today. Not a good situation there.

[Manukau heads obs]

yes, I saw a photo of a road that abruptly becomes a river (vertical drop off)

[Manukau heads obs]

http://www.stuff.co.nz/national/9161007 ... i-district

[tgsnoopy]

Cyclone/Hurricane/Typhoon chases I am personally not a fan of as I would rather not contribute to a problem if I got stuck in a area because of all roads getting blocked.

I did go out in it at it's peak, I realised I needed to get milk and the supermarket would be closed on Friday. Otherwise I was home due to the risk of us flooding & needing to be there to attempt to mitigate damage should it happen.

As far as chasing it, I hear what you are saying. Roads can easily become blocked and we saw it, there were roads closed by slips, flooding, trees down & power lines. In the US I've chased with people prepared to cut & drag trees. But they drew the line at powerlines

[tgsnoopy]

Well done with the video Matt, I liked the archived images being turned into videos at the start they are always good to see, I especially like the fact you time stamped the rain radar images, but I'll be devils advocate and say the all NZ one would also have been good for others not in the BOP region. Keep up the good work, I look forward to seeing more in the future.

[Thunder081]

Well done with the video Matt, I liked the archived images being turned into videos at the start they are always good to see, I especially like the fact you time stamped the rain radar images, but I'll be devils advocate and say the all NZ one would also have been good for others not in the BOP region. Keep up the good work, I look forward to seeing more in the future.

Cheers mate I was thinking about putting the All NZ one in but here it is (fullscreen: https://www.facebook.com/mkovesdiphotog ... 549541720/ )

[Orion]

Beaut, Thunder081
'twas a most elegant-looking system

[Manukau heads obs]

I notice this Whakatane personl weather station recorded 124kmh gust!
https://www.wunderground.com/personal-w ... 0418/mweek

(it is marked as being right by the airport too..?)

[tgsnoopy]

Cheers mate I was thinking about putting the All NZ one in but here it is

Good man! looks very impressive too, I'm sure plenty of us will appreciate you doing that.