Acording to the Calif. Dept of Transportation (CalTrans) web site, U.S. 50 is open this morning. However, Rt. 89 is closed from the junction with U.S. 50, so it would not be possible to get all the way into South Lake Tahoe. Things would be pretty chaotic there anyway.
According to media reports, the fire appears to be burning north/northeast, toward Lake Tahoe and away from the PCT/TRT route north from U.S. 50 through the Echo Lakes basin (the PCT and the TRT follow the same route in this area).
The wind is supposed to increase this afternoon but it is predicted to be from the southwest, which should continue to move the fire away from the PCT.
It looks like it would be possible to get around the Echo Lakes area by going west on U.S. 50 about 4-5 miles down off Echo Summit to Camp Sacramento, then picking up a trail which runs north from U.S. 50 near Camp Sacramento about 5 miles to the PCT near Lake Margery, which is between Upper Echo Lake and Lake Aloha.
Snowbird