Contributes

Despite only the most marginal firming of weather fundamentals and a softer screen during the morning, nearly all cash points ranged from flat to about a dime higher Tuesday. Most softening was fairly negligible except for double-digit drops at Sumas, Stanfield, Malin and intra-Alberta, which were due largely to cool Pacific Northwest weather, a NOVA tolerance change Sunday to 0/-20% and a constraint on PG&E Gas Transmission-Northwest deliveries (see Transportation Notes).