UK gas prices jump as cold forecasts snap bearish streak

(Reuters) - British wholesale gas prices snapped a months-long bearish spell on Tuesday with week-ahead prices jumping 13 percent on forecasts for colder temperatures that should bolster demand for the heating fuel. The most traded gas contracts rose by between seven and 13 percent from pre-Christmas holiday levels despite a current glut of gas and low demand. Local distribution zone consumption forecasts for next week are seen up by 30-40 million cubic metres (mcm) per day compared with pre-Chr