Nik Wallenda will have to deal with gusty winds as he attempts to cross the Little Colorado River Gorge without a safety tether late on Sunday.
Winds will generally be blowing from the southwest at 15 to 25 mph across the Little Colorado River Gorge, located east of the Grand Canyon in northern Arizona, late on Sunday.
Occasional gusts as high as 30 mph are expected, while dry weather and clear skies prevail.
The lack of rain may be welcome news to Wallenda, but the combination of Sunday's dry weather, low humidity and gusty winds is keeping the fire danger high across northern Arizona (as well as the rest of the interior Southwest).
Wallenda's walk across the Little Colorado River Gorge will take place at 8 p.m. EDT on Sunday evening, being aired on the Discovery Channel.
Wallenda will traverse a 1,400-foot-wide gap across the gorge, at height of 1,500 feet, on a wire that is only 2-inches thick, according to the Discovery Channel's official website on the walk.
No safety tether will be in place to attach Wallenda to the wire.
Wallenda is the seventh generation of the legendary Great Wallendas and started walking on the wire at four years of age.
Nik Wallenda waves as he walks on a wire 12 stories above the street in Newark, N.J., Wednesday, Oct. 15, 2008. (AP Photo/Mike Derer)
A powerful storm will bring disruptive weather from Spain to France and Italy for Christmas Day.
As California heads into its third consecutive dry winter with no relief in sight, firefighters continue to battle a late-fall blaze in Big Sur.
After several days of unseasonable warmth, bitter cold and rounds of snow will continue to spread across the Western and Central states into this weekend.
Similar to the days prior to Thanksgiving, the worst weather will focus on the days prior to Christmas as millions of travelers take to the roads and skies in the U.S. and southern Canada.
An abrupt and abnormal cold wave gripped parts of southeastern Texas in early December, catching many off-guard, including two native Southern California bobcats recently transferred to the area.
Warm air is forecast to surge into much of the eastern half of the nation by the weekend and will be accompanied by heavy rain and flooding risk in some locations.
Richmond, VA (1942)
-1 degree F earliest ever below zero.
Perey, IL (1967)
An F2 tornado carried women and her baby 400 feet; they survived.
N. California & Oregon (1964)
Great warm surge and torrential rains on deep snow cover; record floods followed.