The U.S. National Hurricane Center says Tropical Storm Nate's chances of becoming a hurricane in the Gulf of Mexico are declining Sunday.

Forecasters say Nate is not gaining strength and will likely not be a hurricane when it comes ashore.

However, a hurricane warning remains is in effect in Mexico from Tuxpan to the port of Veracruz. The warning means people in the area should be finishing up preparations to protect themselves and property.

By late Saturday, Nate had winds up to 100 kilometers-per-hour.

The Mexican navy and state oil company teams are hoping for calmer waters as they search for 10 oil workers missing off Mexico's gulf coast. Oil company Pemex said it had evacuated 473 workers from platforms in the Gulf of Mexico. The 10 missing workers had had to abandon their disabled lifeboat for an enclosed life raft on Thursday.