2011 Atlantic hurricane season
Hurricane Rina formed on October 23 in the Caribbean Sea as a tropical depression. It began to strengthen quickly and became Tropical Storm Rina just hours later. On October 24, Rina reached Category 1 hurricane status. It was still strengthening quickly by October 25, with Rina becoming a category 2 hurricane in the morning hours. It later weakened again to a Category 1 hurricane, then a tropical storm. It continued to weaken, it then became a tropical depression (39 mph or less) on October 28. It became post-tropical (lost its tropical features) later that day.