The Pittsburgh area could see 6 to 10 more inches of snow by Wednesday night, meteorologist Brad Rehak at the National Weather Service in Moon said this afternoon.

The National Weather Service issued a warning today for more snowfall, following up on a watch the agency had issued yesterday.

"If there is a warning, we are more certain that there is going to be 6 inches because we are closer to the event," Mr. Rehak said.

The forecast now calls for two to four inches tomorrow, two to four more inches tomorrow night, and then one to two inches Wednesday.

The snow will begin to fall around noon tomorrow. Winds are expected to pick up Wednesday afternoon into the evening, with gusts of up to 30-35 miles an hour, likely causing blowing and drifting snow.

Wind chill temperatures will be in the single digits Wednesday afternoon and will drop below zero Wednesday night.

Tomorrow's temperature will range from a high of 32 degrees to a low of 20, and Wednesday the temperature will stay around 20 before dipping to 15 at night.

Flurries may persist Thursday, with no significant accumulation, and Friday will be dry, though cold.

"We see no extended warm periods in the near future," Mr. Rehak said.

Two major winter storms in a row is a rare occurrence, he said. The record for snow depth, or the snow on the ground, was 26 inches, set in Pittsburgh on Jan. 22, 1978.

The current snow depth, after a snow fall of 21.1 inches, is 16 inches.

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