010625 -- Case Summary
Flight Times: 1920 - 2220

ANVIL CASE DAY

There was no attenuation of the 74C radar during this flight.
There is no LDAR data for this day.

Type:   decaying anvil 			

Case 1: When the aircraft arrives at the anvil to cell 1 the cell itself is
gone. The system is in decay and by 2140 the anvil is gone.
Case 2: The aircraft flew way below the anvil associated with the 2nd cell
which developed after the first.


The storm comes in at (-150,-150) the very edge of the grid at about
1750. It is not clear if there were 2 cells or if a single cell split.
For the sake of this discussion I will treat it as 2 separate cells. By
1833 there are definately 2 cells and cell 1 (the northwestern most)
shows a good anvil at the upper levels. By 1910 the 2 cells have
increased the distance between them and cell 2 is either developing its
own anvil or it is taking some of cell 1's anvil with it.

Due the to proximity to the grid edge the velocities are dificult to
measure. In the
earlier stages the two cells seem to repel each other, then after cell 1
dissipates cell 2 has a different velocity vector. A further difficulty in
determining the velocity of cell 2 (once cell 1 in gone) is that the
storm appears to propogate by 'jumping' rather than a smooth motion. In
other words, a core will move slightly then dissipate, while a new core
grows just ahead of the first.