I was only saying the other day about a storm we got caught in a while back; Vicious, heavy rain/hail, wind, almost zero vision. Not very pleasant when on a road with single lanes each way and triple road trains (trucks pulling three trailers) hurtling along in both directions. Pull over and risk getting taken out by a wayward vehicle, keep motoring and the same...Not a good moment.

It's often difficult to know the best course of action...I think lights on and slow speed was the way to go, seems many truckers disagreed as they didn't slow much.