Heavy rain event 8-13 June

Archive of NZ Weather & Climate
Forum rules
These topics are a read-only archive and may be subject to out-of-date information.

For today's weather discussion head to: New Zealand Weather & Climate
RWood
Posts: 3745
Joined: Sat 24/01/2004 16:56
Location: Wellington
Has thanked: 188 times
Been thanked: 123 times

Re: Heavy rain event 8-13 June

Unread post by RWood »

1000mm in 6 hours? No way. That's vastly more than NZ's 12-hour record, which encompasses some extremely wet West Coast sites. The 48-hour record is "only" 1049mm!!
jamie
Posts: 5907
Joined: Fri 25/02/2011 21:35
Location: Hamilton NZ
Has thanked: 22 times
Been thanked: 273 times
Contact:

Heavy rain event 8-13 June

Unread post by jamie »

I would love Metservice to report on this storm. I was amazed at just how strong the winds were right on the southern edge of the centre of the low. It was more like an eye wall of a cyclone. Once we were in the eye here, it was calm and stars were out. Exactly the same as the report in that article. I would love to know why there was the intensity that there was with both wind and rain.
User avatar
Nev
Moderator
Posts: 6216
Joined: Tue 07/03/2006 15:24
Location: Waiheke Island, Hauraki Gulf
Has thanked: 468 times
Been thanked: 1064 times

Re: Heavy rain event 8-13 June

Unread post by Nev »

Yes, I was a little surprised MS didn't write a blog about this event. Perhaps they're too embarrassed about just how strong those winds actually were, lol. :smile:

Here's a few 'official' gust-speeds from the June 10/11 event, the 2007 July event and Ex-TC Bola…

Code: Select all

Highest Gusts (km/h)         Jun 2014   Jul 2007   Mar 1988

Auckland, Tiritiri Is.         174        180         --
Auckland, Musick Pt            149        100         85
Auckland, Whangaparaoa         145         --         --
Auckland Harbour Bridge        131         --         --
Auckland, Leigh                122        123         89 
Auckland, Warkworth            105        119        111
Auckland, Albany               100         --         --
Auckland, North Shore           97        100         --
Auckland Aero                   93         96        130  
Auckland, Ardmore               87         --         --
Auckland, Whenuapai             89         93         89 

Slipper Island                 148         --         --
Mokohinau Islands              132        148         --
Mamaku Radar                   117         --         --
Paeroa                         104        113         --
Firth Of Thames                102         --         --
Cape Reinga                     96        111         --
Port Taharoa                    96         --         --
Mt Ruapehu, Chateau             95        117         --
Tauranga Aero                   93         69         87
Whakatane Aero                  87         57         83
Whangarei Aero                  85        117        126
User avatar
David
Posts: 7578
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland
Has thanked: 416 times
Been thanked: 825 times
Contact:

Re: Heavy rain event 8-13 June

Unread post by David »

149 km/h at Musick Point!? Wow! That's only a few km north of here, and we only got gusts to 76 km/h
Image
User avatar
David
Posts: 7578
Joined: Sat 18/08/2007 21:02
Location: Howick, Auckland
Has thanked: 416 times
Been thanked: 825 times
Contact:

Re: Heavy rain event 8-13 June

Unread post by David »

RWood wrote:1000mm in 6 hours? No way. That's vastly more than NZ's 12-hour record, which encompasses some extremely wet West Coast sites. The 48-hour record is "only" 1049mm!!
Agree. That sounds more like the sort of thing that could only happen at La Reunion Island ;)
Image
RWood
Posts: 3745
Joined: Sat 24/01/2004 16:56
Location: Wellington
Has thanked: 188 times
Been thanked: 123 times

Re: Heavy rain event 8-13 June

Unread post by RWood »

Just as a PS - the world record for 12 hours is 1144mm at the notorious La Reunion island group - which holds a whole pile of rainfall records due to its topography among other things - that occurred during a tropical cyclone. The Coromandel suggestion is just nonsense, but no doubt someone in the media will try to give it respectability. Good comment David - La Reunion holds the 24-hour record of 1825mm.
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Re: Heavy rain event 8-13 June

Unread post by NZstorm »

I recall the EW rainguage at Castle Rock on the Coromandel getting 270mm for the event.

The interesting thing about the wind event was the barometer was not unduly low. A 1002hpa low. There was obviously a squash zone with high pressure to south.
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

Re: Heavy rain event 8-13 June

Unread post by Manukau heads obs »

Bola certainly had some big winds in places...130 at Auckland Aiport..
and wow on the Musik point speed

yes, a real squash zone alright
the relatively fast movement of the low must have been a factor

a M/S hand drawn isobar map of the event would be cool to see
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
Manukau heads obs
Posts: 12305
Joined: Mon 10/03/2003 16:30
Location: West Coast Road, Manukau Peninsula, North Island
Has thanked: 0
Been thanked: 0
Contact:

Re: Heavy rain event 8-13 June

Unread post by Manukau heads obs »

the NZ Farmers weekly has an article about the top of the coromandel getting hit hard
(actually the NW corner...basicly spill over (wind driven) rain on the leeward side of the Moehau Range)
report is of 300mm in 3 hours! (recorded at sea level)
described as the worst in living memory (i.e 150 years)
Image
Brian Hamilton, weather enthusiast. My weather dataEmail: [email protected]
User avatar
NZstorm
Posts: 11333
Joined: Mon 10/03/2003 19:38
Location: Grey Lynn, Auckland
Has thanked: 342 times
Been thanked: 361 times

Re: Heavy rain event 8-13 June

Unread post by NZstorm »

Manukau heads obs wrote:the NZ Farmers weekly has an article about the top of the coromandel getting hit hard
(actually the NW corner...basicly spill over (wind driven) rain on the leeward side of the Moehau Range)
report is of 300mm in 3 hours! (recorded at sea level)
described as the worst in living memory (i.e 150 years)
There was a 50knot low level jet feeding moisture into those ranges. Obviously the faster the air hits the mountains the heavier the rain.
And may there was some instability in it. I don't recall any ts activity occurring though.
Locked