Webwindchill temperature is only defined for temperatures at or below 50° f and wind speeds above 3 mph. Bright sunshine may increase the wind chill temperature by 10 to 18° f. Issued when wind chill temperatures are expected to be hazardous to life within several minutes of exposure. Webwind chill temperature is only defined for temperatures at or below 50°f and wind speeds above 3 mph. Bright sunshine may increase the wind chill temperature by 10°f to 18°f. + when are wind chill advisories or warnings issued? Web“a wind chill advisory is issued when wind chill values will be between 10 below zero and 24 below zero and winds 6 mph or greater,” zontini said.
