First off, apologies for the quality of the snap but it was a bit dark and a lot bumpy
At the time of the morning I took this picture I was just wishing I was in a warm comfy bed not just starting my Atlantic crossing!!
Top left gives ground speed and TAS and just below is the W/V in this case 262 degrees and a velocity of 172kts (which is about 198mph I think).
The wind was due to a strong jet (see above notes) and was a result of Hurricane Noel(??)
Delving into the dim and distant past I seem to recall from ATPL Met that the strongest jet, the subtropical jet at about 30N runs out over China and Japan at up to 300kts