Winds were extremely strong on Thursday with sustained speeds in the 40-50 MPH range with gusts near 60 MPH. A number of semi-trucks were blown over during the morning hours coinciding with the strongest winds. The featured chart is of one minute averaged wind speeds from a research tower located north of Ames. This tower has wind instruments all the way up to near 400 feet above the ground surface. The chart shows the averaged wind speeds over one minute from one second samples, so these speeds would be sustained with higher gusts not shown. Wind speeds increase as you move away from the frictional effects of the ground surface. The chart nicely shows this as wind speed increases with each increase in height above the ground.

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