Wind Chart

This map shows the maximum steady wind expected at an elevation of thirty feet above ground level within a fifty year period of recurrence. Areas with the same maximum constant or steady wind speed are indicated. Because wind speeds are usually not constant, and gusts are involved, our website lists both flagged and unflagged maximum wind speeds with a constant wind speed and a 1.3 gust factor. WARNING: recommended flag sizes throughout our website do not represent a warranty that the flag size shown may be safely flown in all wind speeds. Personal injury, flagpole damage or property damage can occur when flying over-sized flags and banners or flying flags in higher winds than recommended. Flagpoles and their associated wind speeds listed assume that ten percent of the overall length of the flagpole is buried per or recommendations at or near ground level. Special engineering may be required for other applications such as wall or roof mounted flagpoles. Contact us for a prompt response regarding any situation that may require special engineering.







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