February Nymex natural gas (NGG24) on Monday closed +0.087 (+3.01%). Nat-gas prices on Monday moved higher for the fifth consecutive session and posted a 6-week high. The outlook for below-normal U.S. temperatures that will boost heating demand for nat-gas is pushing nat-gas prices sharply higher. On Monday, the Commodity Weather Group said temperatures for the Midwest and South are shifting colder for Jan 13-17, which will “spike heating demand for nat-gas above normal.” The U.S. Climate Prediction Center said there is a greater than 55% chance the current El Nino weather pattern will remain …