Active Front / Gale NW'ers - Sept 10-13

RODALCO · Unread post by **RODALCO** » Tue 10/09/2013 22:36

Lots of lightning activity over the South Island at the moment.

Blitzortung

Brassnz · Unread post by **Brassnz** » Tue 10/09/2013 22:56

Am reading some scary reports out of Chch tonight. Sounds like some significant damage occurring. Stay safe down there!

snowykiwi · Unread post by **snowykiwi** » Tue 10/09/2013 23:16

Thankfully here in rakaia the wind has eased from what we had. We lost the old tall tv aerial mast and the two aerials that were on that. Power has come back on after three hours. Spectacular lightning over the alps. Can anyone tell me how bad the addington area is please my elderly father lives just down the road from the cbs arena and I'm hearing reports it has lost the roof - can anyone verify the damage in that area please. Thanks

Orion · Unread post by **Orion** » Tue 10/09/2013 23:20

Counted 7 seconds between lightning and thunder just before. Some very long peals of thunder, getting frequent. Raining. The wind has subsided (comparatively).

Skywatcher · Unread post by **Skywatcher** » Tue 10/09/2013 23:24

TV3 has a story about damage to the Westpac Hub in Addington so that might be getting confused with the arena ?

http://www.3news.co.nz/Wild-storm-lashe ... fault.aspx

bmo · Unread post by **bmo** » Tue 10/09/2013 23:28

Rebuild Christchurch says damage to arena and westpac hub https://m.facebook.com/rebuildchristchu ... 64988&_rdr

Storm Struck · Unread post by **Storm Struck** » Tue 10/09/2013 23:36

Posting from phone no power since nearly 2 hours ago massive winds worst ive seen cant asses damage too dangerous out there at the moment.
definatly gusts up around 120kmh one gust was huge the pressure standing under shelter would have been higher than 120 easily .
big clean up 2mora i suspect i hope all are safe out there

RODALCO · Unread post by **RODALCO** » Tue 10/09/2013 23:45

Lot more lightning strikes.

Listening to 1ZB at the moment, Kerre Woodham, good programme and update what is going on here at the moment.

bmo · Unread post by **bmo** » Tue 10/09/2013 23:56

Lightning strike just south of us, getting very close

moylanr · Unread post by **moylanr** » Wed 11/09/2013 04:08

Calm now. 133 kmh peak yesterday cf 172 kmh in Aug 1975.

Wooden access cover to roof space was lifting and dropping in an alarming way ~10pm. Mr13 asked if there was a name for the phobia of being scared of the wind at night.

Nearly 20,000 without power now (Canterbury & NW Christchurch).

Storm Struck · Unread post by **Storm Struck** » Wed 11/09/2013 05:31

Its 5:21am still no power although i could hear the orion trucks all night flat out fixing i bet.
Also a fire to the west somewhere as there was a red glow in the sky.
Winds have eased since my last post but trees have taken a battering i beti noticex a few branches around not too bad though and theres a car cover wedged come tangled under my car.
Thunder rumbles most of the night a big one around 3am woke me up.

tgsnoopy · Unread post by **tgsnoopy** » Wed 11/09/2013 05:43

Grabbed some screen shots of the lightning on the TOA network, will post later, very impressive.

Nothing to report from here thus far. Moving two big MDU's today, one from Opotiki to Edgecumbe, the other from Kawerau to Matata, forecast not flash, hoping for the best. Must remember camera, in case.

Skywatcher · Unread post by **Skywatcher** » Wed 11/09/2013 06:39

The gust just after 10pm was the biggest I've recorded at 98km/h with the anemometer at 5m agl.

Strike map from Blitzortung for the last 24 hours !

NZstorm · Unread post by **NZstorm** » Wed 11/09/2013 06:44

Skywatcher wrote:
Strike map from Blitzortung for the last 24 hours !

The chart doesn't capture the event over Otago/Fiordland. VERY impressive over inland Caterbury. The best spillover lightning event for some time.

melja · Unread post by **melja** » Wed 11/09/2013 07:01

121kph on my station, just insane for a residential area.

Orion · Unread post by **Orion** » Wed 11/09/2013 07:05

03Stormchaser wrote:I think these winds could be as bad as August 1975, there I said it!

0600nzst_1aug1975-300x263.jpg
6am, August 1st 1975 (Source Metservice)

5d9-140febaf500-141052ae800-140ffb21f72.0.png
Tuesday Noon, Sept 10th (Source Metservice)

Well called. Thankyou. The Spies and I were able to act accordingly.

Skywatcher · Unread post by **Skywatcher** » Wed 11/09/2013 07:15

Interesting to see the pressure dropped more than 6hPa in the 2 hours before the strongest wind gusts last night.

(Power was off for almost a minute just after 10pm so I started shutting the PC down. That's why the graph is smooth up to that time.)

The webcam captured the dust haze as the strong winds were approaching.

spike_01 · Unread post by **spike_01** » Wed 11/09/2013 07:21

Wild night in the Welly hills.. No lightening.. Worst could be yet to come..

David · Unread post by **David** » Wed 11/09/2013 07:45

Here is my final graph for Christchurch (metservice data) showing the wind burst late last night. Max was 133 kph. Ashburton had a max of 128 kph. Interesting the highest at Metservice's Banks Peninsula site was only 70 kph or so.

christchurch20130911.png

Tornado Tim · Unread post by **Tornado Tim** » Wed 11/09/2013 07:52

Yes alot of lightning over the last 24 hours or so.

Here is last 48 hours of activity from Blitzortung Oceania:

tich · Unread post by **tich** » Wed 11/09/2013 09:09

Heard a rumble of thunder sometime around midnight, after the wind had eased off.

einzack · Unread post by **einzack** » Wed 11/09/2013 09:32

wild night on the coast by all accounts. not from me though as i'm in dunedin...
lost power in reefton from 3am til about 8am. absolutely massive thunderstorm which is still ongoing.
up to 55mm on rain recorded and it's still bucketing down.

bpo · Unread post by **bpo** » Wed 11/09/2013 09:37

NZstorm wrote:The chart doesn't capture the event over Otago/Fiordland.

Maybe my bad. I just could not figure out how to get the TOA working again until a little before 8 PM last night, and by then everything had moved north.

Tornado Tim · Unread post by **Tornado Tim** » Wed 11/09/2013 09:50

bpo wrote:
NZstorm wrote:The chart doesn't capture the event over Otago/Fiordland.
Maybe my bad. I just could not figure out how to get the TOA working again until a little before 8 PM last night, and by then everything had moved north.

Not it still would have detected stuff. Stations in NZ picked up the lightning quite well.

bpo · Unread post by **bpo** » Wed 11/09/2013 09:54

Tornado Tim wrote:Not it still would have detected stuff. Stations in NZ picked up the lightning quite well.

Later today I'll check the data from the Boltek detectors up on the mountain and see how those went.

NZ Weather Forum

Active Front / Gale NW'ers - Sept 10-13

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