General September Weather

[tornado]

I think there will be hail overnight tonight and into tommorow.

[Chris Raine]

3.1C here at Thornbury now but that is about to change. Weather radar shows a band of showers in Foveaux Strait moving east so showers here soon and the wind will pick up. Ventusky shows average wind speed is 33 knots gusting 51 knots overnight Thursday as well as snow falling at midnight tomorrow .We will see .GFS indicates the 522 thickness line is either close to approaching Southland on their 00Z map tomorrow so the afternoon & evening could be quite interesting

[Richard]

This morning there's at least a reply box, dont know why I am seeing the forum like this.

[Nev]

111 kmh gusts (60 kts) here now
I see 83 knots (153 kmh) gusts now at signal station

I see MS tweeted that Manukau Heads recorded a NW gust of 172 km/h at 8:30am yesterday morning - not sure if it peaked then though?

I was at a friends place in Surfdale when the SW change came through around 3pm along with a hugh gust that sent heavy deck furniture and large pot plants flying over the deck and blew off a wooden gate with part of its post still attached. Below are a few more of MS's higher gusts yesterday…

Sep 24 Max Gusts km/h ℅ MS
122 .. Okahu Island
122 .. Golden Valley (Waihi)
122 .. White Island
119 .. Mokohinau Islands
113 .. Mamaku Radar
111 .. Whangaparaoa
104 .. Cape Reinga
98 ... Hokianga
91 ... Hicks Bay

[Awhituobs]

if the showers can be convective enough then they can overcome the marine layer

[tornado]

if the showers can be convective enough then they can overcome the marine layer

true. im hoping for some hail. as some of these showers have hail in them

[Cyclone Tracy]

Trough coming off the Tasman is now announcing its arrival into western side of the NI.

[jamie]

Had a loud rumble of thunder during milking tonight. First thunder I’ve heard in what seems a long time.


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[Awhituobs]

Yes, lightning and thunder here just after 4pm, 63 kts in that squall too

[tornado]

I just heard some distanct thunder : )

[jamie]

Just had lightning hit something right outside my house. Crazy! Will go inspect what it’s hit in the morning.


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[jamie]

Just had lightning hit something right outside my house. Crazy! Will go inspect what it’s hit in the morning.

Well bugger! I’ve just noticed that I no longer have any wind measurements. Stopped at the same time as the lightning strike. After ten years of having essentially a lightning rod on a shed roof, wondering how it’s not been hit to this day, it’s finally happened I think. Can’t think of any other reason the wind would suddenly stop recording.


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[Awhituobs]

ohh,bugger!

[jamie]

ohh,bugger!

Not worried about cost too much. Insurance job. But more gutted I’m not getting these gusts recorded. Some very big gusts.


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[NZstorm]

Looks like an upper trough will cross the North Island Sunday pm or Monday am. A subtropical moisture feed possible with dp 13C so thunder potential for Northland/Auckland.

[tornado]

auckland had some wild winds last night.


https://www.nzherald.co.nz/nz/news/arti ... d=12271014

[David]

Interesting. Noticed it was quite windy but nothing particularly unusual in Howick. Peak gust 60 kmh.

[Richard]

The NW wind is back again this morning after 2mm of rain overnight.

[Nev]

Sep 25 Max Gusts km/h ℅ MS
159 .. Cape Turnagain
135 .. White Island
115 .. Cape Reinga
109 .. Mamaku Radar
106 .. Port Taharoa
102 .. Golden Valley (Waihi)
102 .. Nugget Point
98 … Whenuapai
98 … Farewell Spit
96 … Castlepoint
96 … Le Bons Bay
94 … Mokohinau Islands
94 … Auckland Airport
94 … Kaikoura
93 … Whanganui Airport
91 … Whangaparaoa
91 … New Plymouth Airport
91 … Hawera

[Awhituobs]

118kmh gusts here yesterday afternoon
that puts up there as one of the windiest places in the country yesterday

[Richard]

I find it fascinating why the wind at ground level here is blowing right angles to the general wind direction.

[jamie]

So the lightning hit a fence post on the farm. Done more electrical damage to houses half a km away than houses on the farm. Weird! Pics and post on Facebook.

Anyway I can’t work out why the connection between my consol and my anemometer dropped out at the moment the lightning hit and I can’t get them to pair up again. Any ideas? Being wireless on a shed roof it shouldn’t have been affected by the lightning strike that hit 100m away?



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[Awhituobs]

there would have been a electromagnetic pulse that could have fried the circuit for the wireless connection I suggest

[Willoughby]

Being wireless on a shed roof it shouldn’t have been affected by the lightning strike that hit 100m away?

Most likely the charge build-up (and upward streamers) before the strike destroyed it. The whole mast and roof would have been making a sizzling noise up to 20 seconds before the strike.

https://www.weather.gov/safety/lightnin ... ion-ground

Is that wireless device the original one? Can't remember if you replaced it since.

[jamie]

Thanks Will. Yea there has been a lot of electronic damage to peoples houses around here yet it hit our electric fence. Perhaps some other branches hit power lines and the shed roof too? Must have been a positive strike?

I’ll take the entire station into the shop for an inspection. Hopefully it’s a write off and I can claim insurance on a new one.


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