The hurricane is in rarified air for storms in November, but will be in much different shape as it approaches the US.

The National Hurricane Center said Hurricane Rafael formed Tuesday evening on its way toward Cuba and the Gulf of Mexico while tropical storm warnings were issued for the Florida Keys.

ToplineTropical Storm Rafael is expected to strengthen on Tuesday while becoming a hurricane over the western Caribbean as the storm heads northwest toward the Gulf Coast later this week, impacting the Florida Keys and other states,