General May Weather

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General May Weather

Unread post by NZ Thunderstorm Soc »

Looks like a very anticyclonic start for May.
Frosts and dry conditions.
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Re: General May Weather

Unread post by spwill »

May can produce some good thunderstorms for Auckland, GFS showing mainly clear skies next 5 days, looks like the high in control next week.
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Re: General May Weather

Unread post by NZstorm »

Jet stream pattern modeled for next week with a subtropical jet over Australia and a polar jet in the Australia Bight. A ridge over NZ.
Probably lots of thunderstorms in the mid Tasman next week.

GFS 300mb chart later next week.
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

A blue dome day eventuated after the clearance of yesterday's cold front that moved north.
Low cloud around this morning for the duck shooters around sunrise but that cleared away.
A bit cool with not much wind resulting it only getting up to 13.2C in bright sunshine.
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Re: General May Weather

Unread post by David »

First morning of the year here that I'd say is proper cold (for our climate), down to 5.3C for my station.
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Re: General May Weather

Unread post by Cantab03 »

Stunning day here in Christchurch. Sitting on 18 with no wind to speak of, feels much warmer than that. Looks like 5 or 6 days in the next 10 will hit 20 or warmer. Amazing for this time of year!
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Re: General May Weather

Unread post by Waitakeres »

David wrote: Sun 02/05/2021 07:56 First morning of the year here that I'd say is proper cold (for our climate), down to 5.3C for my station.
Here too David, as usual though - couple of degrees warmer up here, 7.1°C was the low. Stunning day.
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Blue dome day. No cloud.
Today' maximum was 17C.
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Re: General May Weather

Unread post by Storm Struck »

I was only expecting it to drop to about 5C last night but it was -1C with a light frost, which brings us our third frost for the year and all in one week.
Its funny to think that over the past few years we've struggled to reach more than one frost by this time or even early June, that's how warm its been.
On a high pressure day in May going from -1c to 19C is quite spectacular, although we did have a leeward breezy SW instead of our pesky NE.
Over the next week or so temperatures will continue on the warmer trend for eastern areas, with the fohn NW so around 22 to 25C possible in some spots.
GFS hinting at a brief polar flick the following week.
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Another blue dome day.
Some interesting wispy cirrus uncinus moving across around noon and this afternoon.
Today's maximum was 18.2C.
I see the Tasman Sea is quite active, this evening with quite a few lightning strikes this evening on the back of the anticyclone.
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Re: General May Weather

Unread post by Razor »

Surprised to see another frost today. Warm days to continue though
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Warm day here for May after a light frost early this morning, when the sun came out behind the NW Arch as it moved away to the east this afternoon. 20.7C maximum.
Not much wind although a bit of a NW did flutter around 4pm.
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Re: General May Weather

Unread post by Razor »

Time to look towards May record books with MS now forecasting 26 degrees on Sunday in Christchurch
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Re: General May Weather

Unread post by Chris W »

Solid spell of spring-like norwesters coming up on the GFS, not so much rainfall for eastern SI areas. At least the hydro lakes should get something in a few days' time. Possibly something wet for the North Island in a couple of weeks' time.

Warm and stunning in Kaikoura today, just had a steam train roll through town.
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Another mainly blue dome day with light winds. 19.7C for today.
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Re: General May Weather

Unread post by Cyclone Tracy »

A major cold shot is brewing. If this Long wave trough lines up over the warmish Tasman, a very interesting period in the last 10 days of May is on the cards.
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Re: General May Weather

Unread post by TonyT »

Cyclone Tracy wrote: Thu 06/05/2021 20:16 A major cold shot is brewing. If this Long wave trough lines up over the warmish Tasman, a very interesting period in the last 10 days of May is on the cards.
Significant cold has been in the 6 week data for somewhere around the 21st-25th May period for a while now. Snow for the SI, frost to follow.
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Re: General May Weather

Unread post by Chris W »

PV angling at us again, looking interesting.
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Another fine day. :( 17c for today.
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Re: General May Weather

Unread post by NZstorm »

May can be a month for extreme rainfall if the moisture gate opens up to the north.
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Re: General May Weather

Unread post by Chris W »

GFS bringing the cold and Alpine snow next week, also extreme west coast/Lewis Pass rainfall and possibly also on the Kaikoura coast. NZStorm it does look like an atmospheric river is opening up towards the west coast at least.
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Re: General May Weather

Unread post by Razor »

Chris W wrote: Fri 07/05/2021 10:02 GFS bringing the cold and Alpine snow next week, also extreme west coast/Lewis Pass rainfall and possibly also on the Kaikoura coast. NZStorm it does look like an atmospheric river is opening up towards the west coast at least.
Hope not....have a 100 mile race up in Hanmer starting this time next week
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Re: General May Weather

Unread post by Storm Struck »

The last few runs have shown this heavy rain event for Wednesday, Thursday next week with the latest showing abit more for the city.
But it is a SE flow so most of it will fall inland, however 50-60mm could be possible if it holds true and easily 100mm inland.
Will this be the trend for winter, if it is and it starts dragging up the vortex the two might mix at some stage.
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Re: General May Weather

Unread post by Awhituobs »

it does look like a new trend (with the way the ridge of high pressure digs in to create the S to SE flow)
it will not take much of a pattern change for eastern areas to get more traditional rain from behind a passing tasman front/low
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Re: General May Weather

Unread post by NZ Thunderstorm Soc »

Another fine day. bits of high cloud to the west later today. 16.5c was the maximum temperature recorded.
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