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Iowa Wind Index

Iowa Wind Index Intensity Scale –

60 MPH 6. Extremely strong winds, High profile vehicle roll-over likely. Damage possible.
50 MPH 5. Strong winds, High profile vehicle roll-over possible. HIGH WIND WARNING CRITERIA.
40 MPH 4. Windy, some small branches broken.
30 MPH 3. Large trees sway, becoming difficult to walk. WIND ADVISORY CRITERIA.
20 MPH 2. Breezy, small branches move.
10 MPH 1. Light winds