The Atlanta Fed GDPNow estimate of first-quarter GDP growth saw a kick up to 1.2% from 0.5% from March 8.

In their own brief words, they say:

"After this morning’s retail sales report from the US Census Bureau, the nowcast of first-quarter real personal consumption expenditures growth increased from 3.4 percent to 4.4 percent"

The next estimate will come on March 17 (tomorrow)

GDPnow
Atlanta Fed GDPNow estimate for first quarter growth