UPDATE (Feb. 17, 2017, 2:32 p.m.): According to Caltrans, the rock slide has been cleared and all lanes have been reopened.

This huge boulder was just cleared from the southbound lanes of I-5 south of the Grapevine Rd. Exit. Please slow down and be safe. pic.twitter.com/7svtNZ45lo

— CHP Fort Tejon (@CHPFortTejon) February 17, 2017

Even though the boulder was cleared, traffic is still slow in the Grapevine area heading southbound. Be cautious when driving through the area. Winds are still a factor, as well as the rain.

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UPDATE (Feb. 17, 2017, 1:26 p.m.): According to California Highway Patrol, they are stopping traffic at the Grapevine.

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According to California Highway Patrol, there is a rock slide blocking the right three lanes of southbound Interstate 5, just north of Fort Tejon.

There is also a large rock in the slow lane.

This story is developing.