Natural gas futures strengthened Tuesday as updated weather forecasts raised expectations that demand for gas-powered heating could remain strong through the end of the month. Prices slumped earlier Tuesday as forecasts shifted to project mild temperatures in the next six to 10 days, which could reduce demand for the heating fuel. About half of U.S. households use natural gas as their primary heating source, according to the Energy Information Administration. But a midday forecast update from the National Weather Service showed colder projections for the Midwest next week. More than one-fourth of total winter heating demand for natural gas comes from the Midwest, said Teri Viswanath, senior natural gas strategist for BNP Paribas. “The Midwest is very, very important,” […]