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Author Topic: Weather impacts  (Read 5767 times)

Offline CaptCom

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Weather impacts
« on: July 27, 2006, 12:53:17 PM »
During my evidence in the Black Tuesday coronial...I was alerted to some new weather research and events known as "dry slots".

this research finally made sense of the fire behaviour we witnessed.

It will be something that we need to consider with IMT and planning...

A dry slot has the ability to drop the RH from 20% to 3% and dry twigs 6mm in diameter in an hour..effectively creating explosive and unpredictable fire behaviour.

here's a link to more info..

In the last 6 years there has been 200+ occasions of this occuring..

http://www.bushfirecrc.com/news/slots2.html
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Offline firetruck

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Re: Weather impacts
« Reply #1 on: July 27, 2006, 01:14:46 PM »
oh how lovely that news is!

can that occur anywhere or is restricted to certain areas?
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Re: Weather impacts
« Reply #2 on: July 27, 2006, 01:30:41 PM »
Well, the more you know. Also, filtered
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Offline CaptCom

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Re: Weather impacts
« Reply #3 on: July 27, 2006, 01:54:04 PM »
Quote from: firetruck on July 27, 2006, 01:14:46 PM
oh how lovely that news is!

can that occur anywhere or is restricted to certain areas?

sorry firetruck...anywhere...the article is very interesting..even responsible for lightening strikes etc..

It proved to be a valuable point of arguement when I was on the stand...

Not a great piece of info as firies though...except it will change our response plans SIGNIFICANTLY if they predict a dry slot and we have a fire going!  :-o
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rescue5271

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Re: Weather impacts
« Reply #4 on: July 27, 2006, 06:27:23 PM »
Make's you think even more out of the square and only shows just what may happen...May need to re write the book on fire behavior.
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Offline Robert-Robert34

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Re: Weather impacts
« Reply #5 on: July 29, 2006, 02:38:17 PM »
The way that our winter is going at the moment with lack of rain coming out of significant fronts that come over SA we might see these dry slots happening again in the 2006-207 fire season
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Offline CFS_Firey

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Re: Weather impacts
« Reply #6 on: July 29, 2006, 02:46:41 PM »
I think you're right Robert, chances of it happening are pretty high...
« Last Edit: July 29, 2006, 02:59:17 PM by CFS_firey »
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Offline Robert-Robert34

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Re: Weather impacts
« Reply #7 on: July 29, 2006, 06:18:58 PM »
Well firey i have had this gut feeling for the last few months that were in for a ultra bad fire season in 2006-2007 due to all of the frosty nights SA has had which kills off the grass making it prone to drying out real quick come spring & summer

Dry winter + Real cold nights with frost= Potentially lethal 2006-2007 fire season

Plus the South East & Mount Lofty Ranges should have had a really big fire in 2003 when it was 20 years since AW2 1983 but it seems we have been lucky these last few years

But as the old saying goes dont count your chickens before they hatch

I for one hope we dont see Ash Wednesday III this fire season coming as a fire on that scale would be impossible to stop because of its speed and ferocity
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Offline Camo

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Re: Weather impacts
« Reply #8 on: July 29, 2006, 06:24:12 PM »
How about we try and schedule it in for a Saturday.  At least we wont have too many troubles crewing the trucks.

lets face it - its gonna happen again someday and probaly worse  :oops:
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Re: Weather impacts
« Reply #9 on: July 29, 2006, 06:30:51 PM »
Quote from: Robert34 on July 29, 2006, 06:18:58 PM


Dry winter + Real cold nights with frost= Potentially lethal 2006-2007 fire season



also a very wet winter, because it causes much more grass, that is longer.  :evil:
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Offline Robert-Robert34

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Re: Weather impacts
« Reply #10 on: July 29, 2006, 06:53:34 PM »
Quote from: Camo on July 29, 2006, 06:24:12 PM
How about we try and schedule it in for a Saturday.  At least we wont have too many troubles crewing the trucks.

lets face it - its gonna happen again someday and probaly worse  :oops:

I agree camo but we dont know what day it is gonna happen on for we all know it might catch us off guard
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Re: Weather impacts
« Reply #11 on: July 29, 2006, 06:55:36 PM »
Quote from: Camo on July 29, 2006, 06:24:12 PM
How about we try and schedule it in for a Saturday.  At least we wont have too many troubles crewing the trucks.

lets face it - its gonna happen again someday and probaly worse  :oops:

Speaking of that, I don't know how we managed to crew 24,12 AND Tanker for the Mt. Osmond fire last year, what with it being a lunchtime tuesday and all.

Although yes, this summer is not looking to good.
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rescue5271

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Re: Weather impacts
« Reply #12 on: July 30, 2006, 07:04:44 AM »
No can't have it on a Saturday cam,that would mean missing out on football or cricket Sunday is better then we can get out of going to church :mrgreen:
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Offline CFS_Firey

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Re: Weather impacts
« Reply #13 on: July 30, 2006, 01:06:29 PM »
How about we cancell it for this season so we can have some more time to decide a good day?
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Offline Crankster 34

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Re: Weather impacts
« Reply #14 on: July 30, 2006, 07:24:23 PM »
Ah yes, we need a committee or working party, then we'll put it out for consultation amongst the volunteers and maybe even hold a forum. Then we will ignore all the evidence and information before us and do exactly the opposite - that's the CFS way..
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Offline fire03rescue

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Re: Weather impacts
« Reply #15 on: July 30, 2006, 07:26:14 PM »
SUPERCRANK
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Toast

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Re: Weather impacts
« Reply #16 on: July 30, 2006, 09:29:19 PM »
Quote from: Crankster 34 on July 30, 2006, 07:24:23 PM
Ah yes, we need a committee or working party, then we'll put it out for consultation amongst the volunteers and maybe even hold a forum. Then we will ignore all the evidence and information before us and do exactly the opposite - that's the CFS way..

STOP TELLING THE TRUTH,  SHUT UP SHUT UP SHUT UP.
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Offline CaptCom

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Re: Weather impacts
« Reply #17 on: July 31, 2006, 09:13:54 AM »
All I can tell you is that if you have a fire going and a dry slot occurs...you will have to extract every digit known... :-D

It has the potential to create explosive and unpredictable fire behaviour...as for time of day..you should know that it always happens just before a meal time  :evil:

I believe it's something to factor into Group Response Plans..if they predicted a dry slot it should change the response to a 4th or 5th alarm immediately.
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Offline medevac

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Re: Weather impacts
« Reply #18 on: July 31, 2006, 10:39:08 AM »
hmmmmm theres that 5th alarm again....





just stirrin'

certaintly would be a good prompt to be stepping up the resources a fair bit
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Offline firetruck

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Re: Weather impacts
« Reply #19 on: July 31, 2006, 11:02:36 AM »
Quote from: Robert34 on July 29, 2006, 06:18:58 PM
Well firey i have had this gut feeling for the last few months that were in for a ultra bad fire season in 2006-2007 due to all of the frosty nights SA has had which kills off the grass making it prone to drying out real quick come spring & summer

Dry winter + Real cold nights with frost= Potentially lethal 2006-2007 fire season

Plus the South East & Mount Lofty Ranges should have had a really big fire in 2003 when it was 20 years since AW2 1983 but it seems we have been lucky these last few years

But as the old saying goes dont count your chickens before they hatch

I for one hope we dont see Ash Wednesday III this fire season coming as a fire on that scale would be impossible to stop because of its speed and ferocity

all well and good robert, but don't wish it on us.
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"East side love is living on the West end"

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Offline CaptCom

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Re: Weather impacts
« Reply #20 on: July 31, 2006, 02:20:14 PM »
The only good fire season for us is when we get unseasonal rains..

I agree with Robert34 and there is an article out by Bushfire CRC in relation to our up coming season and it's potential to be bad.

It all relates to preparedness and having communities assist...and no room for complacency!  :evil:
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