Windstorm wreaks havoc on San Francisco high-rises, sends couch flying.

Windows along 20 floors of a Salesforce office building in San Francisco cracked during a storm with winds of up to 78 mph, prompting concerns about the safety of high-rise buildings in the city. Three other glass-sheathed high-rises also suffered damage. San Francisco officials are calling for comprehensive inspections of all tall buildings in the city, with some suggesting that such incidents may become more common as weather patterns change. All four buildings have received notices of violation from the city, requiring building managers to secure the broken windows, replace the glass, and provide safety evaluations of all the windows in the building by a licensed engineer or architect within two weeks.