Hurricane warning signs are not apparent until a hurricane has gotten close to making landfall. A few signs, such as an increase in ocean swell, wave frequency and driving rain, can be seen 36 to 72 hours before a hurricane strikes.Rip tides pushing away from the shoreline can appear as the storm nears.ncreased Ocean Swell. Around 72 hours before a hurricane makes landfall, ocean swell increases to about 2 meters (6 feet) in height. Waves hit the shore about every nine seconds. This is one of the earliest signs of an approaching hurricane.
The is the first time in 31 years that the Super Bowl has been in Silicon Valley, and wealthy local residents are undoubtedly helping to drive up ticket prices. The most expensive tickets sold for Sunday's game so far were a pair of seats near the 50-yard line, which went for $20,500 each.
During the 2010-11 season, the most expensive buy on broadcast TV was Foxâs American Idol, which raked in approximately $475,000 per spot, according to media buyers. Close on Idolâs heels was NBCâs Sunday Night Football. The average 30-second spot in the Peacockâs NFL showcase cost around $425,000.