Flying back from Atlanta to Jackson, my Echo Flight finally received its
downloaded Nexrad data. It showed me flying right in the middle of a big
blotch of red. I look outside the window. I'm in light 40 F light drizzle
with ceilings of about 6000 above a broken 2000 layer. I turn on the
Bendix/King RDR 2000 on-board radar. It shows nothing. Nothing on the
stormscope.

Why the huge contrast between the on-board and the Nexrad return? Perhaps
the Nexrad was picking up water far above me, while the on-board was looking
ahead (I was at 5,000.)