Storms encase Iowa and eastern Nebraska in ice and generate first tornado warning in San Francisco - The Associated Press
- Storms encase Iowa and eastern Nebraska in ice and generate first tornado warning in San Francisco The Associated Press
- Watch: Tornado flips cars, damages businesses in Northern California Fox Weather
- Tornado touches down in California, flipping over cars and injuring 3 SFGATE
- Strong Storm Brings a Rarity in San Francisco: A Tornado Warning The New York Times
- Weekend weather includes ice, snow, rain, winds – even a tornado warning for San Francisco Yahoo! Voices