In article , Roger Long
om wrote:

Last weeks solar flare was a non-event except for "a few aircraft navigation
systems" as NPR put it. The one that erupted this morning and will reach
earth Wednesday or Thursday is believed by astronomers to be possibly the
largest since the invention of the integrated circuit.

Oh Great!!!
Tomorrow afternoon I am flying to Philadelphia for the AOPA Convention.
IFR, radios go TU, just what I need!