Severe Weather 2009 / 2010 Season



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After a couple of days of activity but with other commitments, I was finally able to chase today.

The hallmark of the day seemed to be low speed shear producing mainly pulse cells - storms that would fire up but then die shortly after. Slow moving storms are easier to chase if you're in the right place when they get going, but travelling some distance to meet something that looks great on radar for a while but dies as you approach is frustrating.

I started off at Drew's place in Middle Park and with a cell heading NE towards Logan, we headed E along to the Logan Mwy. Around Forest Lake, we got lucky and, even though it wasn't particularly severe, we saw probably the best development of this storm. Plenty of CGs landed ahead of it providing a nice show for us, including a couple of close ones that landed behind us! Here's the RFB (rain free base) as it developed:

As the rain started falling at our location we took off north and stopped at Archefield airport. There was little cloud structure, but still plenty of great CGs. Another one landed within 50m behind us!

It looked to be weakening further, but we decided to stay ahead of it in case it fired up again.

And ended up at Mt Coot-tha. The lightning was over, but the rain provided an interesting view of Brisbane.

A new cell was now heading north towards Marburg. We didn't want to chase from behind so our only other option was to head up the Mt Nebo Rd to Wivenhoe dam, then head south to meet it. Of course, this plan would only work if the storm could last the distance. Unfortunately, it didn't. So, 15 minutes up the Mt Nebo Rd, we turned around and headed south towards the Boonah area for some new small cells that were forming.

Again, the 'pulsey' nature of these storms meant that everything had pretty much died when we got to Boonah. So we hung around for a bit, hearing a few final rumbles of thunder, and watched the rather gorgeous sunset. It was hoped that something would fire up after dark so we could shoot some lightning, but it was not to be.

Not a huge day but still great to be out and about!

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