Best thing to do is call the Inyo County Road dept: 760-878-0202
Doug from the WP Store wrote today that the Portal road "Closed" sign is up -- the sign that warns people that they proceed at their own risk. He drove up, and reported some ice and snow up near the Portal.
Horseshoe Meadows is considerably higher -- pretty sure they will have closed it. I don't know about Onion Valley, but it is higher than Whitney Portal, too.
Edit: I see Sierra Angler beat me to the submit button. He's got better info.
Last edited by Steve C; 12/09/16 10:11 PM.