August Nymex natural gas (NGQ24) on Monday closed sharply higher by +0.123 (+5.78%). Aug nat-gas prices posted sharp gains as US weather forecasts turned warmer, which will boost nat-gas demand from electricity providers to run air conditioning. Maxar said Monday that forecasts shifted warmer for most of the US except the South. Nat-gas prices have been undercut by the glut of US nat-gas supplies, with nat-gas inventories +16.9% above their 5-year seasonal average as of July 12. Also, an outage at the Freeport liquified natural gas terminal has reduced US gas exports and boosted already bloate…