U.S. stock futures shot higher on Monday, as Hurricane Irma hit Florida with less force than expected, while an easing of North Korea tension also boosted appetite for riskier assets such as equities. Dow Jones Industrial Average futures YMZ7, +0.56% jumped 113 points, or 0.5%, to 21,893, while S&P 500 futures ESZ7, +0.53% rose 12 points, or 0.5%, to 2,473. Nasdaq-100 futures NQZ7, +0.73% gained 32.75 points, or 0.6%, to 5,958. Forecast to be downgraded to a tropical storm on Monday, Hurricane Irma was expected to keep pushing across Florida and make its way into Georgia. Irma has left at...