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Posted
  • Location: Ballina, Australia
  • Location: Ballina, Australia

    Sunday 28th December 2008 Heavy storms explodes across the region

    Unusually hot and humid start of the day with mostly cloudy conditions with max conditions of 29/24 and 83%. This has helped thunderstorms to fire up earlier than predicted around 11am across southwestern to northwestern parts of Northern Rivers.

    After 1pm thunderstorms became more widespread across the region with first STW for flash flooding, then edited for large hailstones. One nasty supercellular thunderstorm formed around Coraki shortly after 2pm. This came slow moving due to lack mid level windshear hence caused flash flooding just south of Lismore.

    Then this supercell moved between Lismore and Ballina towards my east along Bangalow-Lismore Road roaring with thunder and winds blowing strong about 50km/hr from the southeast. We had a bit of rain behind it only about 8mm from non-storm cells.

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    Posted
  • Location: Ballina, Australia
  • Location: Ballina, Australia

    Monday 29th December 2008 Violent supercells lashes northern parts of Northern Rivers

    A lovely sunny day started throughout the region with unpleasant heat and humidity encroaches as the sun comes higher and higher in the sky. This has helped the instability to build up until the afternoon severe storms. After 12pm, massive CB towers and Cjs formed around in our skies. Then 2 and half hours later the radar has exploded mass of storms across the North Coast region. Some were detected as supercells and black cores.

    One violent thunderstorm formed south of Lismore moving towards the northeast associated with the southerly change. Other line of cells joined up this cell shortly after 6pm. Now this thunderstorm became a nasty Hp supercell!

    Then the gust front became visible from the valley in west. Very dark green and blue clouds marching towards us with some sort of ‘Armidale’ kind of weather as the temperature drops heavily and winds picked up. Very gusty winds were under this and the rain also started at the time.

    This supercell became berserk as it approaches over us filling with mass of lightning and thunder. Then the backend of the cell smashed us with insane wind gusts up to 90km/hr with some strong ones in microbursts and also very heavy rainfalls. Just shortly the worse came past, again lightning and thunder now even more berserk! I recorded a minute of video clip of it and counted how much of those through and time. They never stop and it became countless!

    We had over 15mm of rain out of this but unofficially it was about 30-40mm due to straight line winds. Little tree damage reported in area and some lightning strikes hit someone’s shed and got burnt!

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    Approaching supercell 4.5mb

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    Increasing squalls and microbursts 5mb

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    Severe winds and flash flooding 2.5mb

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    Beautiful sunset with lightning 5.5mb

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    Lightning and thunder madness 10mb

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    Enjoy! :crazy:

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    Posted
  • Location: Ballina, Australia
  • Location: Ballina, Australia

    Tuesday 30th December 2008 Violent HP supercells produce large hailstones and destructive winds

    Again unusually start of the day with extreme heat and humidity. Maximum temperatures exceeded mid 30’s with heat index towards 40s. Around lunch time a lot of towers and convection has started southwest of Lismore and Casino, and then produced a thunderstorm fairly quickly. It has used up a lot of energy from the cap breakage.

    After 2pm this storm cell became very severe with some USA setup with approaching dryline which made a strong HP supercell. It came over Lismore produced strong wind gusts up to 80km/hr at times and large hailstones up to 4-5cm along Bangalow-Lismore Road as repeated from 28th December 2008 HP supercell!

    This HP supercell came over us here at North Lismore producing some extreme straight line wind gusts up to 90km/hr as again since day before with very little rain. The giant hailstones shaft was about a kilometer away from us! We ended up weird 0.5mm of rain haha which ends the year of 2008 annual total.

    Since the setup of this HP supercell had features of beaver tail (left mover) which came over us with little rain and extreme winds. Strong powerful hail shaft near here towards the east on the hills about Bexhill. Estimated result of instability of this storm cell is:

    Lifted Index of -15

    CAPE about 5500

    SWEAT Index ranging 340-450

    TT of 50

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    Approaching HP supercell 2.6mb

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    Scary Theme! 3.4mb

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    Insane winds and great view of hail shaft 4.4mb

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    Great view of cu field behind 3.5mb

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    Posted
  • Location: frogmore south devon
  • Location: frogmore south devon

    great pic's would be useful if you had a location map showing where the storms are as we have plenty of are pommy friends over there at this moment

    Regards and a happy new year :D

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    Posted
  • Location: Lancaster and East Devon
  • Location: Lancaster and East Devon

    A very interesting thread here SH, which i like to read through when i get the time to. Its nice to have reports from other places in the world than the UK. some great pics especially in the last report, that was a nice looking supercell.

    I must admit this thread sometimes makes me feel a little jealous too. :D wish we had more good storms here in the summer.

    Have a great new year :)

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    Posted
  • Location: Sunderland
  • Weather Preferences: Hot Summer, Snowy winter and thunderstorms all year round!
  • Location: Sunderland
    A very interesting thread here SH, which i like to read through when i get the time to. Its nice to have reports from other places in the world than the UK. some great pics especially in the last report, that was a nice looking supercell.

    I must admit this thread sometimes makes me feel a little jealous too. :) wish we had more good storms here in the summer.

    Have a great new year :)

    I absolutley agree with SM26's post...Its an excellent thread, it's nice to to see the 'extreme weather sub-forums' getting all year round coverage!!..Keep the photos and narratives coming, and dont you dare shut the thread down!...I, for one, am green with envy for all those lovely storms you get! :D

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