Dec. 16, 2019 -- Australia could experience the highest temperatures on Record

Discussion in 'Weather' started by xcel, Dec 17, 2019.

  1. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    This is not a good situation for Australians but the South of the Continent is in serious trouble.


    A “once in a lifetime” heatwave is sweeping across Australia over the next 4 days. Adelaide is forecast to reach 40 degrees C, while inland parts of South Australia, Victoria and New South Wales will be even hotter, reaching the mid to high 40s during the week.

    Highs of over 50C are expected, with meteorologists warning the heat could break the country’s existing record of 50.7C measured at Oodnadatta, South Australia, in 1960.

    The Bureau of Meteorology (BOM) said the scorching weather would likely set December records throughout the southeast, and potentially produce the hottest day on record across the country.
    The Australian Bureau of Meteorology has said people in the south can expect back-to-back days of 49 and 50 degrees in some remote regions for Wednesday and Thursday.

    50 degrees C = 122 degrees F
    49 degrees C = 120 degrees F
    48 degrees C = 118 degrees F
    47 degrees C = 117 degrees F
    46 degrees C = 115 degrees F
    47 degrees C = 117 degrees F
    46 degrees C = 115 degrees F
    45 degrees C = 113 degrees F
    44 degrees C = 111 degrees F
    43 degrees C = 109 degrees F
    42 degrees C = 108 degrees F
    41 degrees C = 106 degrees F
    40 degrees C = 104 degrees F

    Wayne
     
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  2. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    Australia Hits All-Time Record High Average Temperature

    [​IMG]

    Yesterday, Australia has experienced its hottest day on record with the national average temperature reaching an all-time high of 40.9C or 105.6F.
    According to the BOM, the average of maximum temperatures across the country is the most accurate measure of a heatwave. The record setting temperatures arrive as the nation battles a severe drought and bushfire crisis.

    And the deadly heatwave is not over. Forecasters are predicting the most intense heat could arrive before the weekend.

    Several individual heat records were also shattered. Perth, the capital of Western Australia, recorded three days in a row above 40C - a record for December.

    Nine of Australia's top 10 hottest years on record have all occurred since 2005.

    BOM said it projects that the national mean temperatures to be at least 1.3C above the long-term average of 27.5C.

    Wayne
     
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  3. litesong

    litesong litesong

    Been posting on Australian temperatures & wildfires on another thread. Will switch to this dedicated thread:

    Wildfires have killed 9 people, & burned nearly 1000 structures, & 6million acres. Heatwave is increasing once again.
    And now concentrations of Koala Bears in Australia may be dying:
    https://www.foxnews.com/world/australia-koala-wildfires.print
    From the article:
    The mid-northern coast of New South Wales was home to up to 28,000 koalas before the blazes began scorching the region last month...... Around 200 wildfires were burning in four states, with New South Wales accounting for more than half of them, including 60 fires not contained. (Oakbank Balhannah CFS via AP)
     
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  4. litesong

    litesong litesong

    Last edited: Jan 7, 2020
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  5. BillLin

    BillLin PV solar, geothermal HVAC, hybrids and electrics

    Hard to imagine such heat... something the firefighters contend with usually and not civilians.
     
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  6. litesong

    litesong litesong

    Our Washington state forests generate fire whirlwinds & temperatures exceeding 2200degF. Comparing 200 foot tall trees creating a solid flame front 300 feet (more?) high with equally deadly Australian drier brush(not as tall tho), generally hotter temperatures, & equally tall flame fronts, its understandable people heat die at great distances.
    The most powerful forest fire walls of flame pour out 10,000 kW of energy per ground level meter (I have just read that the most intense Australian bush fires generate as much as 100,000 kW of energy per ground level meter!). A huge fire front would radiate 1 to 2 million KW of energy(more?). Such radiation means your dead, even many hundreds of meters from the flame.

    P.S. Extra data that I found & a rough calculation indicates that skin exposure to the radiant heat of a wide, most powerful forest fire wall of flame at a distance of 200meters, would cause severe burns in 15 seconds & kill a person in ~ 40 seconds. Of course, if the exposure were over a longer time period, death could still occur even if a person (maybe disabled or unconscious?) was 500+ meters distant from the flame wall.
    Some may think that the difference between a supreme fire front of 2200+ degF might NOT be much worse that a "normal" 1000degF flame wall, but the energy expended from a flame wall increases at the 4th power of radiant temperature (temperatures above absolute zero). In our example, the impinging energy on a human body due just to the temperature ratio alone would be approaching 11 times that of a "normal" flame wall. Now, all of this is just calculations. In a fluid emergency with many factors, like wind direction, flame wall tilt & flame wall distance changing rapidly, death could come sooner. We're not even talking about the other factors of a forest fire that will kill you.
    Anyhow, while you're trying to figure the flame wall's temperature, you just died.
     
    Last edited: Dec 31, 2019
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  7. litesong

    litesong litesong

    With the late afternoon 6:30PM time in Blacktown & Bourke, Australia, temperatures are still 111 & 109 degF. Their distance apart is 387 miles.
     
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  8. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    When I posted this on FB, one reply was so what, we experience that kind of temperature across the desert Southwest every summer. I explained to him that the Continent of Australia is larger than the land mass of the 48-contiguous states and the average temperature across the entire Continent exceeded 100 degrees F. That is not a good thing to realize.

    Wayne
     
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  9. litesong

    litesong litesong

    At 1:02AM Newman, Australia is 96degF. At 3:02 AM, Charlesville, Australia is 90degF. Newman & Charlesville are almost 1800 miles apart.
     
    Last edited: Dec 31, 2019
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  10. litesong

    litesong litesong

    Yes! Like I just pointed out above, Newman & Charlesville, Australia are almost 1800 miles apart. Its stunning that in two consecutive days, Australia set its all-time average highest temperatures of 105.62 & 107.42 degF.
     
    Last edited: Dec 31, 2019
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  11. litesong

    litesong litesong

    Four thousand people move away from wildfires:
    https://www.aol.com/article/news/20...4000-at-australian-towns-waterfront/23890291/
    From the Article:http:
    About 5 million hectares (12.35 million acres) of land have burned nationwide during the wildfire crisis, with 12 people confirmed dead.....
    In the southeastern town of Mallacoota in Victoria state, around 4,000 residents fled toward the waterside as winds pushed an emergency-level wildfire toward their homes. Victoria state Premier Daniel Andrews said there were plans to evacuate the trapped people by sea. There also were grave fears for four people missing.
     
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  12. litesong

    litesong litesong

    The wildfire Australian burn acreage is out-of-control, now measuring multi-millions of acres MORE than the worst years of forest burns in the U.S.....or IN AUSTRALIA, ITSELF! It appears that burn acreage during LESS than the last two weeks(maybe a week?) has increased nearly 6 TIMES more than an entire year of "normal" national burning.The burns may be on the way to greater burn acreages than the U.S. AND Australia, COMBINED. Australian summer is just beginning. If the burn was all in one region of Australia, it could be represented by a square 140miles on a side or 41+% of New York state! In truth it is worse than one burning locality. Two hundred fires sweep two hundred landscapes. Fire fighting resources are spread all over the country & totally stretched too thin. Fire fighters continually say many burns are not controllable. I assume this means that available fire fighting resources must be assigned to regions thought to be controllable & all uncontrollable fires must be left to themselves....hopefully with the exception of threats to large numbers of human beings.
     
    Last edited: Jan 1, 2020
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  13. litesong

    litesong litesong

    At 6:40PM Bourke, Australia was 110degF & at 5:40PM Mount Isa, Australia was 108degF. Both were 761 miles apart.
    P.S. Later, at 3:10am in the cool of the morning, Charleville, Australia is 101degF. Mount Isa & Charleville are 580 miles apart
    /////////
    At 11 & 10:30am, Bourke AND Oodnadatta, Australia were 98degF. They are 660 miles apart.
    //////////
    At 8:10 PM in the cool evening, Oodnadatta & Coober Pedy, Australia were 114degF. They are 110 miles apart.
    ///////
    On Saturday, 1-4-2020, Cobar, Australia at 4AM is 98degF & Tennant Creek, Australia is 94degF at 2:30AM. Both are 1093 miles apart.
    This day, Leeton, Cobar, Bourke & Griffith, Australia, at 11:20 AM are 103degF. The 4 are collectively, 363 miles apart.
    ///////
    Tonite, Leeton is 116 & Bourke is 114, at 6:25PM. They are 110 miles apart.
    However, Penrith, Australia was the hot city, of 119degF., setting its hottest day ever recorded.
    ////////
    Sunday, 2:40PM, 1-5-2020, Bourke, Australia is 112degF & Dubbo, Australia is 113degF.
    ////////
    Monday, 6:40PM, 1-6-2020, Bourke, Australia is 106degF & Cobar, Australia is 105degF.
    ///////
    Tuesday, 6pm 1-7-2020, Bourke, Australia is 110degF & at 3PM, Kalgoorlie, Australia is 104degF. Both are 1455 miles apart.
    ////////
    Friday, 1-10-2020, highest T: Moomba, Australia, 115.34degF.
    Highest minimum T: Oodnadatta, Australia, 89.42degF
    ////////
    Saturday, 1-11-2020, highest T: Wilcanniq Aerodrome, Australia, 117.86degF.
    Highest minimum T: Wanaaring, Australia, 94.1degF.
    //////
    Sunday, 1-12-2020, highet T: Urandangi Aerodrome, Australia, 114degF.
    Highest minimum T: Windorah Airport, Australia, 90degF.
     
    Last edited: Jan 12, 2020
  14. litesong

    litesong litesong

    https://www.insider.com/australia-fires-burned-twice-land-area-as-2019-amazon-fires-2020-1

    Australian wildfires have now burned 14.6 million acres(48% of the size of New York state). If Australian fires had only been half that amount, it would have been considered a bad year. Australian wildfires may have increased from 0.5 to 1 million burned acres.....PER DAY in the last few days! Only tiny amounts of rain have been predicted anywhere in Australia, & those rains would not effect fires. 20(+?) million burned acres is plausible. Hopefully, the human deaths will remain low. But saying that, it appears that new fire deaths have caused the human toll to rise, at least to 20, with many many people unaccounted for. Estimates of animal deaths are in the many hundreds of millions (portion of or topping 1 billion(?)!!!
    Calculating from the article, it would indicate that 24 tons of CO2 per acre is released into the atmosphere in Australian wildfire burning.
     
    Last edited: Jan 3, 2020
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  15. litesong

    litesong litesong

    Continued news from the Australian fires:
    https://www.usnews.com/news/world/a...-to-rescue-thousands-as-new-fire-threat-looms
    In more than one instance, Naval vessels have & are evacuating people from ocean side beaches who have escaped wildfires further inland. It is like beach evacuations in time of war, only this is a losing war against fire.
    From the article:
    -- A contingent of 39 firefighters from North America landed in Melbourne this week, bringing to almost 100 the number of U.S. and Canadian experts who have flown in to help deal with the crisis.
    -- New Zealand's government said it would send another 22 firefighters next week. Since October, NZ has deployed 157 firefighters to Australia.
     
  16. litesong

    litesong litesong

  17. litesong

    litesong litesong

    From more comments above:
    Ben Butler
    Farmers on Kangaroo Island(160 km long) were shooting fire-injured sheep on Sunday....you’re talking thousands....“They’re digging pits.”.....
    .....have burned about a third of it(the island), devastating the island’s two main industries, tourism and farming.
    Ferries to the mainland have been running almost around the clock to evacuate thousands of tourists back to the South Australian mainland.....
    “And the loss of the two lives.... – Former pilot Dick Lang and his son Clayton Lang were killed when fire over-ran their car on Friday.
     
  18. litesong

    litesong litesong

    With the great possibility that half a billion(more?) individual animals have perished in Australia's wildfires, comes the equally great possibility that numbers of rare plants & animals can go extinct in these wide ranging fires. In several examples, fires have swept directly through the limited habitat for low-numbered plants & animals:
    https://www.theguardian.com/environ...ralia-bushfires-endangered-species-extinction
    Not only does the vast acreage burned have an effect of extinction level tragedy, but searing multi-thousand degree temperature wildfires readily end the viability of seeds.
    ////////
    1-7-2020, Update on wildfire species threat from Vice News:
    https://www.vice.com/en_us/article/...wipe-entire-endangered-species-off-the-planet
    From the article:
    Chris Dickman, an ecologist at the University of Sydney, updated his original estimate of 480 million (dead animals) in an interview with HuffPost, saying it was now at least 800 million — and that’s just for the state of New South Wales (NSW) and doesn’t include bats, frogs, and invertebrates.
    ..... such as the bright yellow southern corroboree frog, the mountain pygmy possum (a small marsupial that sort of looks like a mouse), and the glossy black cockatoo ― could reportedly be wiped out completely by the fires.
    Prior to the fires, there may have been fewer than 200 southern corroboree frogs... Also prior to the fires, there were an estimated 2,000-3,000 mountain pygmy-possum in the wild and some 370 glossy black cockatoos on Kangaroo Island, the main place the bird has survived.
    The 100-mile-long Kangaroo Island, which is located just off mainland South Australia, is largely dedicated to conservation and has become a haven for species like koalas and the glossy black cockatoos..... Even if any of the birds managed to escape, they’ve still lost key survival areas.

    “We will have taken many species that weren’t threatened close to extinction, if not to extinction,” Kingsley Dixon, an ecologist and botanist at Curtin University, in Perth, told the New York Times.
     
    Last edited: Jan 7, 2020
  19. litesong

    litesong litesong

    During the burning of Australia, I still marvel at the record setting hot days. However, Australia is truly a hot continent & country. For two thirds of a year, average monthly high temperatures are 90degF. or above. Two months average 97 degF. For 3 months, average monthly high temperatures are 99degF.
     
  20. litesong

    litesong litesong

    A BBC report on Australian wildfires today:
    https://www.bbc.com/news/world-australia-50951043
    From the article:
    At least 24 people have so far been killed - including three volunteer firefighters - and more than 6.3 million hectares (63,000 sq km or 15.6 million acres) of bush, forest and parks have been burned.
    ////////
    Furthermore, the report has good information about past Australian wildfires, & past temperatures (including latter solid temperature uplifts within the last decade). Also included are changes in the Indian Ocean which have affected longer term weather in Africa, the many islands & nations of southeast asia, & Australia.
    //////
    P.S. On Monday some rain has done a little cooling, so fire & relief supplies can get to some areas of eastern Australia. However, the rains are temporary & not sufficient to stem the ever-growing spread of fire. Extra heat & more burning are expected to increase by Friday.
     
    Last edited: Jan 7, 2020

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