Significant tropical-rain event 22-25 Jan

[David]

Looks like the heaviest is still to come, 22mm in the last hour at cape Reinga.

I see Whangerei on 23C and 100% humidity.

[bmo]

it's just pouring down right now with some very strong wind gusts!

[Manukau heads obs]

the rain radar is starting to undershoot the low to the ground warm front on the ground rain in the far north now I think
(i.e it sort of shows and end to the rain...but that is not the case)

[bmo]

the rain radar is starting to undershoot the low to the ground warm front on the ground rain in the far north now I think
(i.e it sort of shows and end to the rain...but that is not the case)

I agree

[Manukau heads obs]

let us know if the rain eases when the rain radar less rain line moves over cowkop

[bmo]

NZTA is reporting flooding on SH1 in Saint Marys Bay in Auckland City

[bmo]

let us know if the rain eases when the rain radar less rain line moves over cowkop

I will

[bmo]

Since 7am around 20mm has fallen in Kaukapakapa

[David]

17mm last hour. This is the most weather excitement I've had for a while

[Manukau heads obs]

Since 7am around 20mm has fallen in Kaukapakapa

same here, now at 73mm
max intensity hit 68mm per hour
currently at around 20mm per hour

[bmo]

thinking of lighting the fire in the fire place! It's quite cold here!

[Manukau heads obs]

I told a local farmer yesterday lots of rain coming...he said, thats what you said last time ( Zelia)...but this is a different beast...its developing as it moves south instead of weakening..and already had a easterly trough axis ahead of it

[bmo]

The rain has eased off a little bit but now the wind has picked up

[bmo]

just hit 72mm!

[jamie]

sure is coming down in bucket loads at the moment. Im in auckland for the weekend so will enjoy my drive back to hamilton this afternoon. pitty i didnt bring my camera. im sure im going to see plenty of flooding.

ive had 53mm since 9am yesterday so far.
max intensity reached 66mm/hour
if you add the 20mm from the trough 1 day ago ive had 70 mm in the last 48 hours and no let up in sight.

[Manukau heads obs]

there will still be rain to come from the "cold" front and the actual low

[bmo]

The rain has eased off a little bit but now the wind has picked up

Said it a little bit too early wind has dropped and the rain has picked up again!
Cat wants to go outside so i let her out she walks around a little and wants to go inside again because of the rain. Then she wants to go outside again, so i let her and she starts to run around crazy and comes inside again! cats, you have to love them!

[David]

I see the rain has completely stopped at the Mangawhai heads station, hmmm

[bmo]

water tank just started overflowing! whoopee

[Manukau heads obs]

well my theory about the rain radar overshooting the warm front has been blown out of the water I think
still another rain band associated with the low to come yet me thinks

[Vertigo]

not so sure, brian. the cloud tops are very much weaker behind that "rain end" line, and behind that, the low is moving in with drier air circulating in from the west

see what i mean here
http://www.goes.noaa.gov/sohemi/sohemil ... mscol.html

should be quite windy as the low moves in, tho. just not sure about rain with it.

edit: lol, lots of posts since i started typing this

[bmo]

Rain just completely stopped here in Kaukapakapa seems we were wrong about the rain radar?!

[Manukau heads obs]

the cloud tops are very much weaker behind that "rain end" line

yes, that is normal for a warm front
i.e its a slanting cloud sheet
ie coldest , highest level tops to the south, warmer, low level cloud to the north
I would expect , normally in a warm front like, for the rain to continue right up the clearance to blue sky on the sat pic, which is still north of northland...
so maybe there is more rain bands under the cloud

[David]

ENE wind change here, temperature rising real fast

Almost broken my record for daily rain (67mm)

[bmo]

Rain is back but very light rain