* Dollar flat into first day of Fed meeting
* Traders brace for Fed messaging on rate hike path
* Euro briefly hits 5-day high vs dollar of $1.0653 (Updates prices, adds comments; changes byline, dateline, previous LONDON)
By Sam Forgione
NEW YORK, Dec 13 (Reuters) - The U.S. dollar was steady against a basket of major currencies on Tuesday on uncertainty over whether the U.S. Federal Reserve would signal a slow or fast pace of interest rate increases at the end of a closely-watched policy meeting.
The Fed is widely expected to hike interest rates on Wednesday. It is less clear, however, if the central bank will indicate a more cautious pace of rate increases given a recent surge in Treasury yields and gains in the dollar or a faster pace on greater confidence that U.S. economic growth will accelerate.
As of September, Fed officials' median projection was for two rate increases next year. A rate increase this week would be the first since last December and only the second since the 2007-2009 financial crisis. the market is in a little bit of a holding pattern" ahead of the Fed's policy statement, said Richard Franulovich, a senior currency strategist at Westpac Banking Corp in New York.
Franulovich said the Fed could signal a "dovish hike," or a rate hike combined with a policy statement that alludes to recent strength in the dollar and higher U.S. yields as a potential constraint on growth, or a "hawkish hike" where the Fed raises rates and emphasizes faster growth.
The dollar index, which measures the greenback against a basket of six major currencies, rallied nearly 4 percent between the Nov. 8 U.S. presidential election and last Friday. Benchmark 10-year Treasury yields hit 2.528 percent on Monday, their highest level in more than two years.
Those moves have largely come about on expectations that U.S. President-elect Donald Trump will enact policies that increase spending and debt as well as spur growth and inflation.
"There is a lot of suspicion that the Fed might be more dovish than hawkish at this point, given the very strong run-up in rates," said Boris Schlossberg, managing director of FX strategy at BK Asset Management in New York.
The U.S. dollar index .DXY was last down 0.06 percent at 100.970. The dollar was up 0.23 percent against the yen JPY= at 115.29 yen after hitting a 10-month high of 116.12 yen on Monday.
The euro EUR= was last flat against the dollar at $1.0635 after briefly touching a five-day high of $1.0653.