Wintry weekend looming
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For today's weather discussion head to: New Zealand Weather & Climate
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Wintry weekend looming
MetService is going for cold southwesterlies over NZ, with snow to low levels in the south of the South Island, and thunder and hail elsewhere. The models certainly suggest a wintry outbreak. But the GASP models make you want to gasp (excuse the pun) in disbelief. Saturday's prognosis suggests a 516 thickness line over the centre of the South Island, and a 520 line cuting across Nelson and Cook Strait! Now that's a pretty extreme forecast for October which they'll probably tone down, but I think we're definitely in for a wintry weekend. Not with heavy snowfalls like the recent inland Canterbury dump, but with lighter and more extensive low level falls, at least in the South Island.
Ben
Christchurch
Ben
Christchurch
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"Believe it when we see it" Well it didnt do that last summer remember the easterly and troughs over the north but then you never got all the rain and cloudiness over summer like we did
[quote="NZ Thunderstorm Soc"]Possibly in November ... and December and January and February, when it will be very settled with anticyclone after anticyclone after antiyclone drifting over NZ.
]
[quote="NZ Thunderstorm Soc"]Possibly in November ... and December and January and February, when it will be very settled with anticyclone after anticyclone after antiyclone drifting over NZ.
]
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yup
(been away down playing in the snow with the kids, school holidays....
lots of snow on ruhapehu, we had 50 cm depth to play with half way up to the car park, so just stopped there
there was snow even on pihunga behing turangi yesterday (i.e very wintry secne), and right down on the kaimanawa ranges), and some real nasty hails showers that day too
it depends how northerly the wind is how much we will get it here...
a 125 year old church lost some of its roof in the last big blow only a few days ago!
(we had no power, so i dont know what the top windspeed was here!)
(been away down playing in the snow with the kids, school holidays....
lots of snow on ruhapehu, we had 50 cm depth to play with half way up to the car park, so just stopped there
there was snow even on pihunga behing turangi yesterday (i.e very wintry secne), and right down on the kaimanawa ranges), and some real nasty hails showers that day too
it depends how northerly the wind is how much we will get it here...
a 125 year old church lost some of its roof in the last big blow only a few days ago!
(we had no power, so i dont know what the top windspeed was here!)
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Will we in poor Cantab get anything John?
There was a bit of Cu around the port hills today. I think they are coming from moisture that evaporates from Lyttleton Harbour because the clouds look to begin to develop overhead of the harbour then slowly grow a bit as the moved east, they quickly disapated as the sun went down and it got cooler.
Cu clouds over Lyttleton Harbour / Port Hills, looking from Sydenham / Town.
Cheers
Aaron Wilkinson
There was a bit of Cu around the port hills today. I think they are coming from moisture that evaporates from Lyttleton Harbour because the clouds look to begin to develop overhead of the harbour then slowly grow a bit as the moved east, they quickly disapated as the sun went down and it got cooler.
Cu clouds over Lyttleton Harbour / Port Hills, looking from Sydenham / Town.
Cheers
Aaron Wilkinson
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Obs this morning from
MaQuarie Island
Temperature minus1, Southerly 40knots, baro 982hpa Snow
Norfolk Island
Temperature 19 Dewpiont 18, Northerly 15knots, baro 1008hpa Overcast
Looks like bitterly cold air coming up from the south, very moist air coming in from the north. Ingredients for some very nasty weather
(somewhere). Looks like a wintry outbreak for the SI is on the way.
Cloud sheet in the Tasman Sea looks extensive but disorganised.
Currently 8/8 altostratus with light rain in Auckland.
MaQuarie Island
Temperature minus1, Southerly 40knots, baro 982hpa Snow
Norfolk Island
Temperature 19 Dewpiont 18, Northerly 15knots, baro 1008hpa Overcast
Looks like bitterly cold air coming up from the south, very moist air coming in from the north. Ingredients for some very nasty weather
(somewhere). Looks like a wintry outbreak for the SI is on the way.
Cloud sheet in the Tasman Sea looks extensive but disorganised.
Currently 8/8 altostratus with light rain in Auckland.
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the wind is increasing in northland now....
a good site to keep an eye on
latest quick scat mircowave wind on the water pass has a huge no data hole over the tasman !
the wind is increasing in northland now....
a good site to keep an eye on
latest quick scat mircowave wind on the water pass has a huge no data hole over the tasman !
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http://manati.wwb.noaa.gov/dataimages21 ... MBas70.png
finally a good quick cat scan
some 45 knot winds with the cold front, but not too much wind with the low
less wind, so far, than the last system...
but its still deepening....
finally a good quick cat scan
some 45 knot winds with the cold front, but not too much wind with the low
less wind, so far, than the last system...
but its still deepening....
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Mine dropped like a stone overnight!
Eventually down to 976hPa by a quarter to 3. this afternoon.
Now the southerly has gone through.
With the low pressure, the sky looks quite disorganized here.
I don't know what the thunder chances are for Canterbury tommorow, Aaron? ...but as the borometer is very low, anything can happen.
The temp has gone down from 24C here just before the southerly hit at 4:30pm to 13C now.
JohnGaul
NZTS
Eventually down to 976hPa by a quarter to 3. this afternoon.
Now the southerly has gone through.
With the low pressure, the sky looks quite disorganized here.
I don't know what the thunder chances are for Canterbury tommorow, Aaron? ...but as the borometer is very low, anything can happen.
The temp has gone down from 24C here just before the southerly hit at 4:30pm to 13C now.
JohnGaul
NZTS
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42 knots gusts here now
the NWer has arrived with a rush!
make that 45 knots now
the intereseting thing is the temperature increase of 3oC or so (now nearly 8pm at nigth and nearly 17.2oC)
so it was a warm front .....so wheres the cold front?
looks to be on the other side of the tasman low
hey, really low pressures recorded near CHCH..amzing..
the NWer has arrived with a rush!
make that 45 knots now
the intereseting thing is the temperature increase of 3oC or so (now nearly 8pm at nigth and nearly 17.2oC)
so it was a warm front .....so wheres the cold front?
looks to be on the other side of the tasman low
hey, really low pressures recorded near CHCH..amzing..
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this station shows the big temperature drop and pressure drop/fall in CHCH today
this station shows the big temperature drop and pressure drop/fall in CHCH today
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