Paul Mallinson wrote:
SWWs (Severe Weather Warnings) are issued for large scale weather situations (heavy rain, heavy snow, high winds) for areas of 1000 square kilometres or greater. This event was small in area and due to a number of thunderstorms training along the same convergence line. Currently there is no Severe Thunderstorm Watch or Warning service for events on this scale. MetService is working towards providing a Severe Convection Watch Service to be followed by a Warning Service in due course.
I notice you slag MetService on this situation but fail to recognise that warnings of heavy rainfall and severe thunderstorms were/are successful for areas north of Auckland.
Paul
Thanks for the reply,
Ah so it has to widespread.. but still it seems quite a bit odd to see all these land slips and flooding without a warning?
There are always so many watches and warnings for small areas such as the Coromandel Ranges or eastern BoP for example.. but western Waikato (a large area) isn't justified for having one when the blowups last night were almost on a synoptic scale, and if one was to be looking at the rain radar, satellite data etc at 10pm last night they'd see that there is explosive convection developing over eastern Waikato/BoP and western Waikato looked certain it was in for a deluge. I'd be thinking for sure.. 'lets warn these folks'.
But that's good to hear the improvements re TS watches.
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Ah so it has to widespread.. but still it seems quite a bit odd to see all these land slips and flooding without a warning?
The rain in Waikato Tuesday night was unexpeted so there was never going to be warning for it any way.
Weather forecasts are not going to be right everywhere all the time as most of us realise
Location: West Coast Road, Manukau Peninsula, North Island
Unread postby Manukau heads obs »
i think it took everyone by surprise that the vorticity extended that far south.....there was no sign that it would ....until that extra moisture feed came into that area off the BOP
a warning at 10pm is too late for most people....but, if there were met staff on night watch, and they could see it happening, as it did show on the sat image and rain radar, then they still could have put out a warning....and made them look good the next morning
Razor wrote:I see there is another ex trpoical system due mid next week....hopefully this one might actually deilver some much needed rain to Auckland!
Yeah that system moving down East Aussie was actually 2 TC's a couple of days ago... Now downgraded to monsoon trough... 2 storms in one...
Paul Mallinson wrote:
Saw your post once I got home Gregg and I guess you know the answer by now. The storm motion there today was progged to be from the North-Northeast so presumably they would stay out of northern Manawatu.
Paul
Thanks Paul for the reply. You were right, the storms didn't really get anywhere near northern Manawatu.
At which height do you use the wind direction as a general indication of the direction that the thunderstorm will move in?
Can see distant thunderheads from here. Look to be over SE Waikato I think.
Edit Satellite shows them near Tirau (SE of Hamilton). Still some explosive convection visible. Met Service need a radar that covers the central North Island and Bay of Plenty!!!
NZstorm wrote:Can see distant thunderheads from here. Look to be over SE Waikato I think.
Edit Satellite shows them near Tirau (SE of Hamilton). Still some explosive convection visible. Met Service need a radar that covers the central North Island and Bay of Plenty!!!
Location: West Coast Road, Manukau Peninsula, North Island
Unread postby Manukau heads obs »
yes, that CB looked impressive!
I took a guess at being at about tokoroa....as i saw it on my way to a meeting
ps, seemed particularly more humid today....
