Well,I went for a paddle with a few mates the other day and it was blowing a bit ,and I saw this gizmo that Barry had and thought it was a GPS or something but it was an anemometer and I said what the hell do you want for.So we had a guessing game on the wind strength .I said I thought it was about 18 to 20 KPH.We checked it and it was 10.3 ,I was amazed,obviously I have been over estimating for awhile so thats blown my paddling stories for awhile.