A paper is now being presented by Michael Scotten of the Birmingham NWS office on the November 28, 2005 tornado outbreak across Alabama. Six tornadoes were reported across Central Alabama with only minor damage.
This was a day with a moderate risk, and a day many believed would feature some long track tornadoes over much of Alabama (especially the northern half).
Why no long track tornadoes?
Weak instability and the lack of deep lift. No significant short wave or vorticity max nearby most likely prevented a widespread outbreak.
The cold front and the old outflow boundary served as the only boundaries to initiate tornadoes. Once each tornadic supercell moved off the boundaries, they weakened rapidly.
The best lift and strongest winds moved northeast and away from Alabama through the day.
More to come...
This was a day with a moderate risk, and a day many believed would feature some long track tornadoes over much of Alabama (especially the northern half).
Why no long track tornadoes?
Weak instability and the lack of deep lift. No significant short wave or vorticity max nearby most likely prevented a widespread outbreak.
The cold front and the old outflow boundary served as the only boundaries to initiate tornadoes. Once each tornadic supercell moved off the boundaries, they weakened rapidly.
The best lift and strongest winds moved northeast and away from Alabama through the day.
More to come...