Heavy Rain, Squalls & possible Tornadoes upper N.I. - Jul 18

spwill · Unread post by **spwill** » Sat 18/07/2015 12:31

Looks like a squall line crossed the region , have seen pockets of minor tree/fence damage on my morning travels

spwill · Unread post by **spwill** » Sat 18/07/2015 12:36

Current weather is calm with some sunshine now

ben g · Unread post by **ben g** » Sat 18/07/2015 12:43

NZstorm wrote:Been for a drive and seen broken tree branches but nothing major. Looks like squalls.

I agree, just a hearty squall, not "mini tornados" caused by a "weather bomb" like the herald reports.

Just for you guys

http://youtu.be/5dt3ywErAM0

jamie · Unread post by **jamie** » Sat 18/07/2015 12:43

Had 83km/h here.

Getting an amazing mama display currently as it clears

ImageUploadedByTapatalk1437180204.039473.jpg

spwill · Unread post by **spwill** » Sat 18/07/2015 13:17

Damage reports coming in, a significant squall event
http://www.nzherald.co.nz/nz/news/artic ... d=11483093

littleheaven · Unread post by **littleheaven** » Sat 18/07/2015 13:38

I emailed them to explain what a weather bomb actually is, though I suspect it won't make an iota of difference.

03Stormchaser · Unread post by **03Stormchaser** » Sat 18/07/2015 13:43

Stuff reporting the following just now.

A tornado has been seen in Tauranga and Mt Manganui. More soon.

Edit: Appears like it was nothing of the sort. Jeez media in NZ are terrible

Also reports of planes being flipped at Ardmore earlier.

NZstorm · Unread post by **NZstorm** » Sat 18/07/2015 14:22

I had a look at that damage in Avondale and it looks like there was a small tornado there.

Fallen Eucalyptus did the damage but there was other plants ripped out there was well. Part of a roof was gone on a house.

03Stormchaser · Unread post by **03Stormchaser** » Sat 18/07/2015 14:39

Thanks Steven, that damage is starting to look more like tornado damage.

Nev · Unread post by **Nev** » Sat 18/07/2015 15:22

Bit belated but, as this is a significant event in itself, thought it might pay to give it its own thread.

Nev · Unread post by **Nev** » Sat 18/07/2015 16:12

Check out the flying dinghy in Mt Maunganui at the beginning of the video in this story…

'Tornado rips through Western Bay' - SunLive

NZstorm · Unread post by **NZstorm** » Sat 18/07/2015 17:00

We had a nice afternoon in Auckland with 16C. But the next round of showers is arriving and i'm expecting a squall or two here. 850mb flow is 55knots!

littleheaven · Unread post by **littleheaven** » Sat 18/07/2015 17:04

Severe thunderstorm watch issued for Northland and Auckland - Civil Defence just tweeted radar pic of storms just to the West.

Manukau heads obs · Sat 18/07/2015 18:15

The video on tv1 news of the furniture being blown around on the squall
shows just hiw severe that squall was!

CbFan · Unread post by **CbFan** » Sat 18/07/2015 18:22

Was at Mahurangi this morning as the line went through about 10 - 5 minute burst of phenomenal rain and wind to match. I didn't see any evidence of different wind directions, despite having a couple of hours to look around as I waited for power and Fire Service to clear the fallen trees and downed powerlines across the road, so I'm going for microburst. Wind speeds were still strong enough to pepper me with airborne grit off the carpark surface as I bravely cowered behind the car.

Nev · Unread post by **Nev** » Sat 18/07/2015 18:27

Seemed to be a pretty good eye-witness confirmation of the Wellsford 'tornado' on TV3 tonight.

David · Unread post by **David** » Sat 18/07/2015 19:04

A fairly uneventful evening from the sounds of things. Barometer has dropped 25 hPa since midnight!

Manukau heads obs · Sat 18/07/2015 19:21

100kmh gusts here this evening is not uneventful

NZ Thunderstorm Soc · Sat 18/07/2015 19:23

Karen going overboard on the 'mini'-tornado tonight on the weather but now days, I don't really care

Tornado Tim · Unread post by **Tornado Tim** » Sat 18/07/2015 19:29

What a whopper of a baro surge when that squall came through late morning..... around 3.5 hPa in a few min!

David · Unread post by **David** » Sat 18/07/2015 19:38

Manukau heads obs wrote:100kmh gusts here this evening is not uneventful

That's not overly unusual for you though is it? Auckland airport is only recording gusts around 40 km/h tonight, around 35 km/h gusts here.

NZstorm · Unread post by **NZstorm** » Sat 18/07/2015 19:44

David wrote:
Manukau heads obs wrote:100kmh gusts here this evening is not uneventful
That's not overly unusual for you though is it? Auckland airport is only recording gusts around 40 km/h tonight, around 35 km/h gusts here.

Yes, it seems we always miss the wind in NW flow here in Auckland.

jamie · Unread post by **jamie** » Sat 18/07/2015 20:58

Tornado Tim wrote:What a whopper of a baro surge when that squall came through late morning..... around 3.5 hPa in a few min!

Yea I had similar. Was a cracker squall. The clouds were going nuts as it approached.

Manukau heads obs · Sat 18/07/2015 21:40

I see M/S still warning for period of severe westerly gales from now until 6am
Well, its windy here but not like whats forecasted (in fact its been slowly easing from the peak when the westerly first developed after 6pm when we were getting a good gale.
update: wind is picking up here now having said the above

amazing to see all the damage across the auckland area..and over a large area too, on the news reports
(large trees down,and across cars/houses)
that sure was a powerfull and active front that moved across the auckland area
It sure looked great looking back at it after it passed over...mamatus cloud and all...real active looking...not surprised to hear of reports of actual eye witness of rotating whirlwinds/debri..i.e small tornadoes...but obviously alot of the damage also from the intense but short duration squall line (with 65 (120kmh) kt winds by the looks) that moved through)
ps, baro dropped to 986.6 here just after 6pm so the low deepened rapidly alright as the models predicted

Nev · Unread post by **Nev** » Sun 19/07/2015 09:25

Apart from the Wellsford incident, these reports from Manurewa and Pt Chevalier are the only other 2 that I have found so far that come close to visual conformation of a tornado or funnel-cloud...

'Auckland hit by weather bomb' - The Aucklander (Stuff)

The Wellsford resident described it on TV3 last night as like a big spinning sort of spiral that touched down just before it headed his way and damaged parts of their house.

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Heavy Rain, Squalls & possible Tornadoes upper N.I. - Jul 18

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