From Merrill Lynch:
1Q GDP tracking edged down a tenth to 1.8% qoq saar, while 4Q ticked up to 2.7% [March 6 estimate].
And from the Altanta Fed: GDPNow
The GDPNow model estimate for real GDP growth (seasonally adjusted annual rate) in the first quarter of 2018 is 3.5 percent on March 1, up from 2.6 percent on February 27.
From the NY Fed Nowcasting Report
The New York Fed Staff Nowcast for 2018:Q1 stands at 3.0%. [March 2 estimate]