Extreme Weather
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Not really intending this to be a Climate Change thread, more just a place to comment on extremes of weather that maybe experienced by Ferners around the place.
I'm starting it because of the extraordinary amount of rain we've had just inland from here overnight.
Tropical Cyclone Seth formed off the NQ coast a week or so ago, trundled South East along the coast, got up to a Cat 2 (I think), and slowly fizzled out to a sub tropical depression somewhere east of us this week.
Ex-TC Seth hung around a bit out there then started to head west in towards land on Friday.
We got a few showers but it was quite interesting / fun watching the circular pattern of the clouds on the radar (http://www.bom.gov.au/products/IDR083.loop.shtml ... watching the weather radar is a favourite pastime in Australia if weather is threatening). The eye was still quite defined.
Had a couple of reasonably heavy showers but nothing really to write home about.
But late Friday the low stalled a little South West of us and proceeded to dump a metric fuckton of rain on the Mary Valley.
Below is a screenshot of the intensity of the rainfall as measured by the weather radar at the centre of the crosshairs for the 24 hours until 9am this morning.
This can be found here: http://www.bom.gov.au/products/IDR08D.loop.shtml#skip (Until 9am tomorrow when obviously it updates...).
The bright red is what the intensity predicts is >250mm (10 inches) of rain in that 24 hour period. That is a shitload rain ...
But ... the above image link only goes up to 250mm. The weather station at the weather radar site (Mt Kanigan, the "Gympie" radar) recorded 650mm (!!) (25.6 inches) in 24 hours!
Multiple other rain gauges in the area received over 200mm, 300mm, 400mm, 500mm +.
(If you're quick enough, rain gauge readings are here: http://www.bom.gov.au/qld/flood/seast.shtml, select 24 hour readings. Anything red is >100mm
)This on top of whatever they got on Friday, and post 9am today.
Storm seems to be dissipating now, but still the odd decent cell about. And if you're quick to click you may see the system still obviously circulating.
Anyway, lack of stock on our supermarket shelves no longer just due to COVID staff shortages. Bruce Highway is cut off both North and South of Maryborough so we'll be waiting a while to restock. And Maryborough's CBD about to get very, very wet.
Hervey Bay in no danger of flooding, and we're on top of a hill, in case you were worried.
Shared as it was quite remarkable watching this happen. I doubt it is "unprecedented", but is certainly as much rain as I can remember in our area.
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Just checked the BOM intensity-frequency-duration calcs for the location (lat long) of Meridian. The 100 Year storm (to use the old terminology, it's now the 1% Annual Exceedance Probability) is "only" 292mm.
There used to be a link to longer return periods/ lower AEPs but I can't find it now.
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@booboo said in Extreme Weather:
But late Friday the low stalled a little South West of us and proceeded to dump a metric fuckton of rain on the Mary Valley.
Below is a screenshot of the intensity of the rainfall as measured by the weather radar at the centre of the crosshairs for the 24 hours until 9am this morning.The wife told me her sister (who lives about 2km down the road) rang her early in the morning to say the river was rising and was just under the bridge so she may be flooded in. Took the scenic route and got through regardless.
Anything over half a metre of rain in 24 hours is something to behold.
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@antipodean that's right we're neighbours aren't we?
Hope they ok?
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@booboo said in Extreme Weather:
@antipodean that's right we're neighbours aren't we?
Hope they ok?
Yeah they should be fine thanks. There's a new bridge over the worst creek so that alleviates a lot of the problems. Really bad floods submerge the lowest lying paddocks but that's what makes them good. 👍
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@booboo That is a serious storm alright, with so many extraordinary characteristics. I see an inch of rain along the eastern side - over the coastal strip, uniformly.
Head west from Rainbow Beach for forty miles and they copped 10 inches from Friday afternoon to early morning Saturday. You'll not often see a deluge like that, even in sub-tropical Queensland.
The cyclone impact here - Gold Coast Seaway / Broadwater - has been limited to a day of moderate seas and south easterlies gusting to 20 knots for Thursday, light rain no more than half an inch daily.
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@mikedogz yeah the humidity the last 2-3 weeks has been worse than I can ever remember it!
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@taniwharugby your weather yuckier than ours.
Similar temp, nowhere near the humidity.
This is not normal though.
Seems to have been a real mild summer, especially this last week.
P.S. you guys got the cyclone dragging in the tropics eh? We've got a nice southerly. So I expect that balances it up.
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@booboo we got one heading in from Vanuatu, lots of wind, bit of rain, but humidity meant to drop tomorrow, instead of 25+ at night be mid-teens.
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Raining a little again ...
... Flooding everywhere. Like fucking everywhere in SEQ.
Records set to be broken.
Not as intense as the other week but still massive falls and more widespread.
Mary River set to break records for flood levels.
Lockyer Valley reminiscent of 2011 fatal floods.
Screenshots following from Bureau of Meterology Gympie radar. Can't paste the link sorry.
First shot 24 hours to 9am this morning.
Second is from 9am till now (about 7pm ... 10 or so hours)
Pleased to not be in a river valley, and on top of a hill.
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