Rain and westerly change, 4 - 7 Aug

Manukau heads obs · Sat 04/08/2007 07:35

oh goody , we have thunder here ...a thunderstorm to our west heading this way

spwill · Unread post by **spwill** » Sat 04/08/2007 07:39

Yes Lightning flash/ Thunder from West Auckland way.
Mod to heavy rain here.

ricky · Unread post by **ricky** » Sat 04/08/2007 07:45

Happy Birthday Brian! the weather has brought you a present

NZstorm · Unread post by **NZstorm** » Sat 04/08/2007 07:50

Thunder on a warm front! Quite an active front too looking at the radar.
Upper air is cold though.

Manukau heads obs · Sat 04/08/2007 08:25

getting closer and closer the lightning too me
my Boltec is doing a great job of tracking the CB in this system
maybe its where the cold and warm fronts convergem, i.e the center of a new wave depression under the jet stream?
NE winds picking up here, very low cloud and heavy rain and dark and stormy with lightning and thunder
love it, great birthday pressy!

Manukau heads obs · Sat 04/08/2007 08:37

only 4 seconds to the thunder now

rain radar shows the worst of it is going to pass just to the south of me, north of Waiuku

Willoughby · Unread post by **Willoughby** » Sat 04/08/2007 10:10

Raining moderately here.. 3.2mm last hour. NW change due a bit later may prove interesting...

Manukau heads obs · Sat 04/08/2007 11:16

we ended up with about 18mm from that frontal system over the 4 hours

spwill · Unread post by **spwill** » Sat 04/08/2007 11:45

The Thunderstorms have moved south this morn with the Front catching the coastal fringe.

Overcaste here and 16C. Dewpoints are 14C, that is moist air for August.

NZstorm · Unread post by **NZstorm** » Sat 04/08/2007 14:51

The forecast snow level of 700m for Canterbury for this weekend is a bit of a suprise. Is there a mesoscale cooling effect going on there?

NZstorm · Unread post by **NZstorm** » Sat 04/08/2007 14:56

Still looking very unstable out to the west of the NI but this activity drifting toward Waikato south. Not much ts activity atm.

Andrew Massie · Unread post by **Andrew Massie** » Sat 04/08/2007 15:39

Just started easterley rain here... Coming through in squalls.

Manukau heads obs · Sat 04/08/2007 16:08

Gusting to 40ks here from the NNW and getting windier slowly

see, didnt I say yesterday that when you see a big jet stream like that in the tasman it means its going to get windy with a deepening low

gllitz · Unread post by **gllitz** » Sat 04/08/2007 16:44

NZstorm wrote:The forecast snow level of 700m for Canterbury for this weekend is a bit of a suprise. Is there a mesoscale cooling effect going on there?

Looks to be snowing at Arthur's pass (webcam shows it)...and snowing at Castle Hill as well...Castle Hill is ~700m?

melja · Unread post by **melja** » Sat 04/08/2007 16:51

NZstorm wrote:The forecast snow level of 700m for Canterbury for this weekend is a bit of a suprise. Is there a mesoscale cooling effect going on there?

Sure is snowing in the mountains

] have a look at arthurspass.

http://www.softrock.co.nz/mg/apmc.php?page=26

I think both M/S and blue skies are a bit off the game forcasting the weather in this part of the world

Heavy rain in rangiora for the last 2 hours 24mm.

melja · Unread post by **melja** » Sat 04/08/2007 16:55

20cm of snow in 2 hours at porters ski area

NZstorm · Unread post by **NZstorm** » Sat 04/08/2007 17:13

I was expecting good snow on the SI ski fields from this system but not as low as 700m.

Storm Struck · Unread post by **Storm Struck** » Sat 04/08/2007 17:49

Moderate to heavy falls of rain coming down at times here filling up those creeks even more, could be abit of a concern if it keeps up.
6C with a light easterly, it does have that feel as if there is an inland advective snow going to occur.
Wouldnt surprise me if the snow level dropped tonight to say 400m

.
Cheers
Jason.

TokWW · Unread post by **TokWW** » Sat 04/08/2007 17:51

50mm of rain in Sth Waikato in 8hrs and still falling baro... gusts of 70k/hr ... cold wet job today as soccer referee...

Storm Struck · Unread post by **Storm Struck** » Sat 04/08/2007 18:24

Just had a couple of good downpours go through, easterly has picked up too.
Cheers
Jason.

Andrew Massie · Unread post by **Andrew Massie** » Sat 04/08/2007 18:45

Constant rain here now.. Received 10mm since 3pm.

Willoughby · Unread post by **Willoughby** » Sat 04/08/2007 18:54

Been wet wet wet here today (30mm)... and it's just started to get a bit windy. Suprising very warm for this time of day, 14.4C... warm front is through.

Active Cb cloud brewing in the SC Tasman, risks of thunder over the next few days in areas exposed to the west.

TonyT · Unread post by **TonyT** » Sat 04/08/2007 19:47

21mm so far and stil raining, a bit more than I thought there would be.

Edit - finished with 26mm

RWood · Unread post by **RWood** » Sat 04/08/2007 19:58

Plenty here in the last 4 hours, I would guess 20-35mm at least.

TokWW · Unread post by **TokWW** » Sun 05/08/2007 06:59

we received 103mm in the end, max rate was 179mm/hr!! We had 2" in two hrs in the end with thunder and lightening.

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