Anybody can "keep an eye on the weather".
He's a Delta captain with 43 years experience who says that there was nothing unusual about the weather at the time of the crash. Period. And the radar loop that you linked to proves him correct.
Preliminary review of the cockpit voice recorder shows the pilots were cleared to land on Runway 18/36 two minutes before the end of the recording.LinkSixteen seconds before the end of the recording, the pilots received the first of two "sink rate" warnings, a mechanism which kicks in if a plane's descent does not match its programmed path, Sumwalt added.
Thirteen seconds to the end, a crew member reported the runway was in sight.
Nine seconds prior to the end, there are "sounds that are consistent with impact," Sumwalt said. Sumwalt stopped short of saying if those sounds were of the plane's first strike of trees near the airport or of the plane striking the ground, adding that the initial team's role is to collect, not analyze data.
That seems late to be calling the runway in sight. Could they have been breaking through a low cloud?