Pacific Gas and Electric issued a systemwide Stage 2 high-inventory OFO for Thursday on its California Gas Transmission system, setting penalties of $1/Dth for exceeding an 11% tolerance on positive daily imbalances.

Citing "significantly greater system weighted temperatures compared to normal," Northern Natural Gas said it will implement a System Underrun Limitation for all market-area zones (ABC, D and EF) Friday.

Saying system operations had improved, Tennessee downgraded a Critical Day 1 OFO to an Action Alert OFO Wednesday. See the bulletin board for impact details.

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