Thursday, March 09, 2006

Morning Update

* The SPC has issued a few tornado watches off to our west, mainly across Arkansas and Louisiana. These watches will likely be extended eastward with time, and will almost assuredly include our area later today.

* I'm waiting for visible satellite imagery to become available (sun must rise first). IR satellite measures cloud temperatures, so it's available now - and it shows what could be a patch of clearing over central LA and southwest MS. If that is indeed clearing and the sun is reaching the surface, that is very bad news. That sunshine would destabilize our atmosphere. That's something we'll monitor closely.

* I note our dewpoint is at 58. Still not terribly high, but high enough to support some problems, given today's extreme wind fields. The dewpoint is up to 60 in Jackson. Hattiesburg is showing 61. These are close enough, but hopefully will limit things from getting completely out of hand.

* Our thinking on the timing hasn't changed - the worst of it will occur between 2 and 7pm. The main threat is still damaging winds - but tornadoes are also a possibility.

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