Narrative:

Given line up and wait instructions on 26L in atl after boeing 737 had just started to roll. After lining up was given takeoff clearance and proceeded with takeoff. After rotation and on climb out at around 400 feet received a windshear message; captain was flying and complied with command bars and after about 5 seconds windshear message disappeared. Weather was clear skies; no weather in the area and had not been for at least 12 hours. Believe message was due to wake from heavy aircraft that had just taken off.felt situation was handled properly and aircraft was not put in an undesired state.

Google
 

Original NASA ASRS Text

Title: CRJ-200 First Officer reported receiving a windshear message shortly after takeoff from ATL that he believes was caused by a wake from preceding aircraft.

Narrative: Given line up and wait instructions on 26L in ATL after Boeing 737 had just started to roll. After lining up was given takeoff clearance and proceeded with takeoff. After rotation and on climb out at around 400 feet received a windshear message; Captain was flying and complied with command bars and after about 5 seconds windshear message disappeared. Weather was clear skies; no weather in the area and had not been for at least 12 hours. Believe message was due to wake from heavy aircraft that had just taken off.Felt situation was handled properly and aircraft was not put in an undesired state.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.