Thunder, lightning and rain, all on a clear cloudless day?

[Viduka]

Using IuB 1.03 and for the first time i've seen, the sky is cloudless and blue with the sun shining brightly but there is rain and lightning at the same time. Just wondering if this is a known bug that anyone else has encountered?

I asked my WO for a weather check just to make sure it wasn't some kind of sun shower but he reported "clouds overcast, precipitation medium, fog heavy" ???

Very strange indeed.

(Just as an extra note, am using nVidia 6800 gt with the latest drivers. Have never had any graphical problems before)