Originally Posted by
joshua362
Yikes, I assume the tower had a visual on them to waive them off as the lowest they got was 300' and the overcast was 600' at the time. It was a day of monsoon like rain here in NY.
I am not sure of the physical location of the tower at LGA, but with a 4000' RVR, they may have not seen them, even if the ceiling was 600'. There is a RADAR display in the tower cab and they probably saw them off course on that display if they didn't have a visual out the window.