Missed closing due to Texas weather

Hi BP, I am a long-time follower and I am excited to now be a Pro member. I am scheduled to close on my personal home in TX and it looks like my close date will be missed due to the weather. I suspect the seller might have a higher backup offer they want to take if I miss my close date. Do I have any protection due to the weather/power outages for a postponed close date or any other options? 

Thank you so much in advance!