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#1488218 - 31/01/2019 19:08 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
The ross dam spillway gates will certainly be all opened at 100% very soon with current volume and inflows, the insane future forecast will raise risk of the 43m level being reached if inflows become historic in nature. Risk must be alleviated to ensure the 43m level is not reached, as dam failure in the Emergency Plan states 43m level is the level where dam failure is likely to occur. The current level is 40.17m.

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#1488257 - 31/01/2019 20:58 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
Sunny Showers Offline
Weather Freak

Registered: 08/01/2010
Posts: 267
Loc: Townsville.
No Twitter update on the Ross Dam capacity since the 11.00am report at 139.3%.
No 3.00pm or 7.00pm updates? I wonder why?

Considering its an automated system, its unusual to miss reports like this.

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#1488258 - 31/01/2019 21:05 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
exodus Offline
Weather Freak

Registered: 28/12/2007
Posts: 629
Loc: Mount Louisa, Townsville
Even bom levels for the dam have not updated since 6pm, it does say telemetry radio and might be 3hour updates but itís usualt more frequently.

31/01/2019 18:03 40.61


Edited by exodus (31/01/2019 21:05)

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#1488268 - 31/01/2019 21:35 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
Wezza Offline
Weather Freak

Registered: 15/01/2008
Posts: 770
Loc: North Ward, Townsville. Toll, ...
That band that is coming from the Ingham area looks to be exploding just before it hits Townsville. Get ready for another drenching I think!


Edited by Wezza (31/01/2019 21:35)

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#1488272 - 31/01/2019 22:00 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
Flowin Offline
Weather Freak

Registered: 15/10/2017
Posts: 966
Loc: Pinjarra Hills, Qld
The regional scale of this rainy weather event appears quite broad.
Perhaps quite more than Cardwell to Bowen when one looks at the satellite Zehr enhanced images and national radar. Good to see to rain somewhere as those of us from further south look on with envy. Nonetheless the safety of people is always most important. Take care all.

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#1488274 - 31/01/2019 22:13 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: exodus]
Sbv72 Offline
Weather Freak

Registered: 02/02/2011
Posts: 74
Loc: Idalia, Townsville, QLD
Originally Posted By: exodus
Even bom levels for the dam have not updated since 6pm, it does say telemetry radio and might be 3hour updates but itís usualt more frequently.

31/01/2019 18:03 40.61


31/01/2019 17:52 40.65

This is the level for full opening of the gates.

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#1488277 - 31/01/2019 22:28 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
exodus Offline
Weather Freak

Registered: 28/12/2007
Posts: 629
Loc: Mount Louisa, Townsville
All Gates arenít fully open till 43m, i imagine at 40.73~(heightesr recorded level) and then again if it reaches 41 they will open the gates more as it all compounds downstream at Aplins which is already at 1.55, not far from its next moderate flood level of 1.7/1.77m


Edited by exodus (31/01/2019 22:29)

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#1488286 - 01/02/2019 00:36 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
ol mate Offline
Weatherzone Addict

Registered: 27/03/2010
Posts: 1232
Loc: Ingham, North Qld
I just tipped out 90mm. Gauge was empty at 8pm.
_________________________
Ingham - Golden Gumboot holder of the Northern Region - cuz we steal Townsville's Rain!

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#1488287 - 01/02/2019 00:40 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
Oriolus Offline
Cloud Gazer

Registered: 25/12/2010
Posts: 40
Loc: Mundingburra
Regarding speculation about the dam, these figures are floating around on Facebook. Perhaps SBT or someone else can confirm these:

Full supply (100%) is 38.55m
Full storage (369%) is 46.5m
Dam bursts (water comes over the wall) at 48.5m

As someone who lives near Aplin's Weir, I'm a little concerned about the predicted major flood level of 2.90m. Up until this event that kind of level seemed unthinkable. Would the river burst its banks at that point?

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#1488288 - 01/02/2019 02:27 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
Targus2019 Offline
Cloud Gazer

Registered: 25/01/2019
Posts: 9
Loc: Araluen
Wow, good ol Townsville turning it on.....I was working up there in the 98 event when it rained for days on end, seems to happen every 10 or so years, stay safe everyone.

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#1488293 - 01/02/2019 04:04 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
If you read section 5 of the ross dam Emergency Action plan, dam failure is likely to occur at 43m, long before a breach of 48.5. I have just realized that Saturday to Tuesday is king tides with the highest on Monday or Tuesday 4.05m, Yikes I hope Sunwater have been releasing water on all gates at 100% while they have the opportunity. It really is quite important to get rid off excess storage while you can, when you can causing as little down stream flooding where possible, but when you are faced with a dam failure no choice but just let her rip in regards to gates open 100%, King tides or not. forecasts also effect spillage rates.

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#1488294 - 01/02/2019 04:10 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
Click on all observations on the BOM main web page, click on rivers, scroll thru to ross dam.

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#1488295 - 01/02/2019 04:27 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
3.02am height 40.67m, 2.12 above spillway, steady. At least it is currently not rising, small catchment means flow in volumes slow down quick when the rain stops compared to other larger catchment type dams. I imagine Sunwater are all over this like a bad rash, getting rid of as much water now as possible, as the rain and tide forecast seems not real good for future inflow rates. Wow who would have thought the day would come when you would be hoping the rain to friggen go away in Townsville.

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#1488296 - 01/02/2019 04:37 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
As for ross river breaking the banks of the river, the council or Sunwater would have flooding maps, Evacuation advice would be given prior to a ross river bank breach, the dam has been a great flood prevention tool for Townsville, my wife was born in Townsville, when she was a young child 50 odd years ago she remembers flood debri up in the gumtrees above the top of river banks. It was a dirt track up the river with no dam, so floods back then were terrible. no houses only a cattle station homestead about where the motorway bridge is now.

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#1488297 - 01/02/2019 04:53 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
At 43m all gates fully open no matter what, lets hope it stays under that level and excess storage can be spilled without causing any extra flooding, Awareness of the situation is good, no need to panic, we live in modern times with great communication to alert people prior to any adverse events.

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#1488300 - 01/02/2019 06:18 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
Rainfall rate in kelso is insane at the moment

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#1488301 - 01/02/2019 06:21 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: bartholomu]
hickory Offline
Weatherzone Addict

Registered: 27/01/2006
Posts: 1656
Loc: Holloways Beach QLD
Originally Posted By: bartholomu
I have just realized that Saturday to Tuesday is king tides with the highest on Monday or Tuesday 4.05m, Yikes

Try 3.41 metres at 09:16h.

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#1488302 - 01/02/2019 06:35 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
bartholomu Offline
Weather Freak

Registered: 15/01/2011
Posts: 101
Sorry my bad, got the date wrong 19/2/2019-4.18m

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#1488303 - 01/02/2019 06:50 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
dormant Offline
Weather Freak

Registered: 30/01/2011
Posts: 748
Loc: near ferry, FNQ
It's a mystery to me how some people have their favourite weather as .. cyclones.

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#1488305 - 01/02/2019 06:59 Re: North Queensland Wet Season - Cardwell to Bowen - January 2019 [Re: Raindammit]
exodus Offline
Weather Freak

Registered: 28/12/2007
Posts: 629
Loc: Mount Louisa, Townsville
01/02/2019 05:38 40.73

Ross river dam now officially at highest recorded level of flood, wonít be long till itís exceeded.

The eap has the evacuation zones on page 95ish, tbh if your worried bens over and kiss your ass goodbye lol, with bohle/black/alligator there is no chance they could evacuate the zoned area for a failure.

Flooding wise there isnít too much impact other than Rosslea and Oonoonba from water current contained water releases.

http://data.dnrm.qld.gov.au/eap/ross-river-eap.pdf



This was a good post off Townsville wtag group.

Quote:
Currently the 3 radial gates on Ross River Dam are opened to a level of 2.00 meters if it is being run by the manual
The level at present is 40.67 meters
When level reaches 40.75 M all 3 gates will be at 2.25 meters
When level is at 41.00 M all 3 gates will be at 2.50 meters
When level reaches 41.50 Gate 1 and 3 will be opened at 3.50 meters and gate 2 will be at 10.5 meters
At 41.75 M all gates opened at 10.50 meters
Above 41.75 m AHD, dam outflows are a function of
headwater level alone with no control by gate operations.


Edited by exodus (01/02/2019 07:02)

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