Cyclone Gabrielle impacts on NZ - Feb 12-16

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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Razor »

964 for breakfast. I want to say bad words
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by cbm »

The centre could even be between Little barrier/Hauturu and Great barrier/Aotea now? Just a guess from the radar.

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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by spwill »

Wind picking up here last 30mins, some good gusts at my place now. 47.5mm here last 6hrs.
Some thunderstorm activity out Coromandel way , the instability is modelled to stay out that way.
Last edited by spwill on Mon 13/02/2023 22:49, edited 1 time in total.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by darcyplumb »

Wishing all of you that are in the North Island the very best of luck for the next 12-24 hours. I think we can all agree that the worst case scenario is now unfolding up there. Both stuff and NZ herald have rolling coverage on their website for those interested.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by spwill »

Grey Lynn showing max gust of 82.8 kmh (44.8 kts) at: 22:34
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Nev »

Tornado Tim wrote: Mon 13/02/2023 22:17 Storms triggering around the Cyclone center, just offshore Coromandel.
Yes, Great Mercury Is. off the Coromandel's east coast also currently down to 969 hPa...
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Ash »

I thought thunderstorms around the eye signified a rapid deepening. The wind in Napier is roaring, and the rain is horizontal. Impressive storm.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by David »

50mm here in the last 6 hours, wind’s gusty but nothing too unusual. Pressure still falling
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by jamie »

It’s certainly impressive. Wind and rain are both on a strong scale and then you get them together over the duration and it’s something else. What a storm!


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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by wre1991 »

Ohinemuri River - Karangahake River level now at 17.3m, about 1.3m off its highest level of 18.66m when Waikino township got washed away in 1981. Does anyone know when it last reached these current levels?

https://waikatoregion.govt.nz/environme ... L?dt=Level
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by harleyb »

Surely this pressure reading is an error..? 8-o
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by David »

Just woke up and see pressure is stable at 971. I guess the centre hasn’t come as close as GFS was hinting at (it had us getting down around 967)
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Ryza117 »

361mm so far - Patoka inland Hawkes bay. Still pouring thunder mixed in.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by harveyt86 »

David wrote: Tue 14/02/2023 03:22 Just woke up and see pressure is stable at 971. I guess the centre hasn’t come as close as GFS was hinting at (it had us getting down around 967)
Maybe it didn't deepen as much as some models progged either? Going to be a gusty old day from the southwest I think. I hope those along the eastern coastlines of the North Island are doing okay..
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by BeaconHill »

The Tutaekuri River in the Hawkes Bay is a massive concern. Friend who lives nearby just sent photos of 2 of the other bridges, and they are at risk of being washed away.

The “old SH50 bridge near EIT has a large shipping container wedged against it.
9631BCB8-013B-40DC-B9D0-7487B2BB8D5D.jpeg
And the single lane Brookfields Road bridge has water close to the bridge deck.
A1266619-4DFA-4B50-8530-E093902CE991.jpeg
Water is within a foot of the top of the stop bank in many places and high tide is 4 hours away….
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Ash »

Hawkes Bay is crippled right now pretty much. Pretty bad here in terms of affected infrastructure, bridges, power ect.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Richard »

Doesn't look good for those bridges with all that debris piling up behind them
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by Nev »

harleyb wrote: Tue 14/02/2023 03:00 Surely this pressure reading is an error..? 8-o
Screenshot_20230214-025651_Firefox.jpg
Yep, definitely an error. In fact, from my general observations, I'd say the vast majority PWS's on Wunderground have never bothered to calibrate their barometers to sea level.

However, one of the more reliable PWS's at Claris Aero on Great Barrier Island recorded 965.4 hPa at 3:17am this morning. I think the lowest official site at Great Mercury Island (NZ Coastguard) got down to about 967 hPa around the same time. And according to MS, Gabrielle's centre was 967 hPa at 1am this morning and down to 966 hPa at 7am.

Heavy rain here last night brings my total to 125mm for this event so far.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by David »

Picked up 81mm from 5pm to 5am making an event total of 108mm. Escaped any particularly strong winds locally.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by BeaconHill »

Esk Valley north of Napier (SH5 runs up the bottom of the valley) is fully flooded. Reports via facebook of people trapped in the roof spaces of their houses.

Pic via twitter:
Esk River flooding.png
Esk Valley map.png
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by harveyt86 »

I think pretty bad news will start trickling in from many places this morn. No power, water or cell data in Gisborne apparently.

Windy afternoon in store here in Auckland. Especially West and North. Will see how we go here. Have got away very lightly so far.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by darcyplumb »

harveyt86 wrote: Tue 14/02/2023 08:53 I think pretty bad news will start trickling in from many places this morn. No power, water or cell data in Gisborne apparently.

Windy afternoon in store here in Auckland. Especially West and North. Will see how we go here. Have got away very lightly so far.
Sadly I think you’re right. Also I think the govt will have no choice but to declare a national emergency to pull resources from other regions.
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by harveyt86 »

National state of emergency declared now
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by harveyt86 »

Does not look good in Hawkes Bay
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Re: Cyclone Gabrielle impacts on NZ - Feb 12-16

Unread post by JP. »

harveyt86 wrote: Tue 14/02/2023 08:53 I think pretty bad news will start trickling in from many places this morn. No power, water or cell data in Gisborne apparently.
Some of the early photos from Hawkes Bay look terrible, thoughts are with them
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