Mysterious Case
The morning of October 6, 2004 was a relatively benign one. There was
an upper ridge over the Prairies with a trough approaching Alberta,
causing some showers there.
Morning radar imagery was interesting, though, with something very unexpected showing up.
Looking between the radar shots and the satellite pictures, it seemed to make no sense.
Looking between the radar shots and the satellite pictures, it seemed to make no sense.
Radar shows echoes over northeastern Montana
At first, anomalous propagation was considered but then
examination of the composite image below showed that the echoes were moving approximately with the upper winds.
Satellite animation shows no cloud over the area
Reflection
So what was happening?