19/09/08 Severe Brisbane Valley Storms | Early downpour Sunshine Coast
Posted on September 19, 2008
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As I type, storm activity is decreasing and all warnings have been cancelled. More storms may pulse to life during the evening, but with the heat of the day going, nothing severe is likely – until tomorrow afternoon. Showers and thunderstorms developed mostly along the ranges today from about Allora up to Esk and Kingaroy.
The best action was in the Esk to Kilcoy areas where a fairly long lived storm – a supercell – tracked NNE and NE. The BoM noted in one of their warnings of an amazing 28mm in just 5 minutes at Kilcoy – a nice 336mm/hr intensity!! Going by radar (and soundings), some areas would’ve received some small to medium hail as well.
You can see a small radar loop of today’s storms (Click for full size loop of the day’s storms) You can see easily the best action was in the areas north of Gatton to Esk and out to Kilcoy. Other storms developed along the Downs but these didn’t last very long or reach severe intensity.
Some friends of mine chased the Kilcoy supercell. Some very nice pics and a report are here, on Weatherzone Forums.
In other news, some local convergence surprised everyone in the early hours. In the space of two hours, Noosa had 125mm, Tewantin 68mm and Maroochydore 64mm. The forecast had been ‘drizzle’! Runoff flowed through several houses in Noosa. A pretty rare event for September.
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