Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

SOUTHWEST · FLIGHT WN 4104 LANDED 5:53 PM CT, ~10 MIN LATE · SCHEDULED TIME UNKNOWN

WN 4104 · BNA → JAN

took off 5:01 PM CT · landed 5:53 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 4h after departure

Odds over time

Arrive at JAN more than 15 minutes late?
16% chance · ±1 pts −2 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.1d 12h 6h Departs Lands