Beware of a dead-cat bounce and prepare for a severe market correction by making these 6 investments now, a veteran chartmaster warns

• This market drawdown is just beginning, warns a bullish-turned-bearish strategy chief.
• David Keller shared key technical levels to watch for the S&P 500 right now.
• Here are six top ways that investors can ride out the storm in the US stock market.

A long-time technical analyst has a simple, yet scary, message for investors: Look out below.