* Dollar index falls vs FX basket before Fed rate decision
* Fed seen cutting rates by at least 50 bps from 1 pct
* Fed may offer clues on plans for quantitative easing
* Dollar slips below 90 yen after Goldman Sachs posts loss (Adds quotes, updates prices, changes byline, changes dateline, previous LONDON)
By Wanfeng Zhou
NEW YORK, Dec 16 (Reuters) - The U.S. dollar fell to a two-month low against the euro and a basket of currencies on Tuesday on bleak housing news that added to speculation the Federal Reserve will cut interest rates to near zero.
The dollar fell below 90 yen as investors cut their exposure to risk after Goldman Sachs <GS.N> posted a its first loss as a public company.
The yen's rise to near a 13-year high increased speculation Japan may intervene to stem the currency's strength, which threatens the competitiveness of its exports.
Few doubt that U.S. central bank will cut its interest rates from the current 1 percent. Investors will look for clues in the Fed's statement about its intention to undertake alternative policy measures to restore growth.
"It seems like a fait accompli that they'll go 50 basis points, so it's not clear how much of a market impact that will have," said Brian Dolan, chief currency strategist at Forex.com in Bedminster, New Jersey.
"What will be interesting is if they mention anything specific about quantitative easing measures, though it might be better to deal with that in a separate statement."
In early New York trading, the ICE futures U.S. dollar index, which tracks the value of the greenback against a basket of six currencies fell 0.4 percent to 81.740 <.DXY>., after falling as low as 81.716, the worst level since mid-October.
The euro was up 0.2 percent on the day against the dollar <EUR=> at $1.3748 after hitting a two-month high of $1.3759. The euro had earlier come under pressure after purchasing managers' surveys painted a bleak outlook for the region's economy.
U.S. data showed new housing starts and permits plunged to record lows in November, while consumer prices dropped at a record rate for a second straight month. See [
]. [ ]."Starts are stunningly weak, but I can't say this should come as a complete shock," said Alan Ruskin, chief international strategist at RBS Global Banking and Markets in Greenwich, Connecticut.
"The data will similarly do nothing to deter market thoughts that the Fed is also en route to more aggressive quantitative easing, starting with some pronouncements today after the rate cut when the Fed is sure to make clear that it feels it has not run out of ammunition."
Against the yen, the dollar fell 1 percent to 89.85 <JPY=>, after dropping to session lows at 89.73, near a 13-year low of 88.10 yen reached last week. (Additional reporting by Steven C. Johnson; Editing by Tom Hals)