[meteorite-list] More on radar images of Lorton, VA fall on MLK

[Rob Matson]

[Resending from home computer; apologies if you ~eventually~
receive this post twice.]

This Lorton bolide dust cloud is also visible in the Sterling, VA,
radar cycle beginning at 22:47:06 in the first two sweeps,
continuing its eastward drift. I'm checking the Norfolk/Richmond
radar in case it showed up on it as well, but so far it appears
in four sweeps spanning a little over four minutes:

22:45:01  38.72N, 77.16W, 2.5 km
22:46:24  38.72N, 77.13W, 3.4 km
22:47:48  38.71N, 77.10W, 0.5 km
22:49:11  38.71N, 77.10W, 0.5 km

This is a fairly significant drift rate eastward:  about 31 m/sec,
or roughly 70 mph. But this is in agreement with what the jet
stream map shows for this part of northern Virginia a little
over an hour later:

http://virga.sfsu.edu/pub/jetstream/jetstream/big/1001/10011900_jetstream_an
al.gif

--Rob