WASHINGTON - November 19, 2008 - The Federal Reserve on Wednesday sharply lowered its projection for economic activity this year and next, and signaled that additional interest rate reductions may be needed to help combat the worst financial crisis in more than a half-century.

With the economy forecast to lose traction, or even jolt into reverse, unemployment will move higher, the Fed predicted.

Facing the likelihood of “significant weakness” in the economy, some Fed officials suggested “additional policy easing could well be appropriate at future meetings,” according to documents from the Fed’s most recent deliberations on interest rate policy at the end of October.

At that October 29 session, the Fed lowered rates to 1 percent, a level seen only once before in the last half-century. Many economists predict the Fed will lower rates again at its last meeting of the year on December 16, to help brace the sinking economy.

Even while hinting that another rate reduction could be forthcoming, Fed officials worried that the effectiveness of previous rate cuts “may have been diminished by the financial dislocations, suggesting that further policy action might have limited efficacy in promoting a recovery in economic growth,” the documents said.

To help ease financial turmoil and spur banks to lend money more freely again to customers, the Fed has taken a series of other unprecedented steps, including offering short-term cash loans and buying mounds of short-term debt that companies rely on to pay day-to-day expenses like payrolls and supplies.

Under its new economic forecast, the Fed now believes Gross Domestic Product (GDP) could be flat or grow by 0.3 percent this year. GDP could actually shrink or expand by 1.1 percent next year. Both sets of projections are lower than the Fed’s forecasts delivered to Congress in July.

GDP is the value of all goods and services produced within the United States and is the best measure of the country’s economic health.