National Weather Service United States Department of Commerce

Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns

Canadian wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as we closely monitor tropical development, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

Wind Speed Conversion

by Tim Brice and Todd Hall
Enter a wind speed that you would like:
 
Answers:
mph (miles per hour) mph
knots knots
m/s (meters per second) m/s
ft/s (feet per second) ft/s
km/h (kilometers per hour) km/h
 
What are the formula for the wind speed conversion script?