Warren Buffett is piling up cash because he sees a storm brewing and can't find bargains, wealth manager says

• Warren Buffett's Berkshire Hathaway held a record $157 billion of liquid assets at the last count.
• The cash pile signals Buffett's not finding bargains and expects trouble next year, Lee Munson says.
• Berkshire is betting on growth and value with Apple and Bank of America, the wealth manager says.

Warren Buffett's stack of cash is bigger than ever because he spies problems on the horizon and he's struggling to find bargains, one wealth manager says.