#5529 Postby Tireman4 » Mon Jan 27, 2014 3:22 pm
From Steve McCauley...Facebook...
It's nice to see the winds coming down this afternoon, but there is still a bit of a bite to the air. Peak winds were at 53 mph during the predawn hours as the arctic front blasted through, but now down to 33 mph. The dewpoint has plummeted to ZERO and below across much of north Texas, so bone-dry air is now firmly in place. Watch out for the extra potent static electricity discharges today and tomorrow!
We remain precipitation-free this week, but I am pleased to say that our Bering Sea disturbance (see last night's post) is still very much alive and is still on schedule to arrive next week on the 3rd and 4th. And there is still decent evidence that it comes in negative tilt.
Why is the tilt important? Two reasons: 1) A Negative Tilt Disturbance is the strongest orientation a disturbance can have, and 2) A Negative Tilt tends to make air pressure at the Earth's surface fall very fast, and that acts like a magnet to draw Gulf Moisture back into Texas.
We must must must get that Gulf Moisture back and replace these below zero dewpoints with 50s and 60s again! If we don't have the gas to put in this strong engine that's coming next week, all we'll get is wind (and fire).
So keep your fingers crossed for the negative tilt (or at least a zero-tilt), and we may just be able to break out the widespread rain again. But it is still more than a week away, so NOTHING is set in stone, but the stat method has it up to 60% probability.
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