James Spann is a chief meteorologist who has over 1 million total followers across various social media platforms like Facebook, Twitter, Instagram, YouTube, and Snapchat. He emphasizes the importance of understanding the people and culture you serve, being available on weekends, answering questions from followers, posting early and often with some personality, and following people on social media. He provides best practices for using different platforms like including audio on Facebook Live, making content interactive, and posting Instagram and Snapchat stories daily.