Southwest Airlines BNA RSW WN621
Southwest Airlines · Live forecast
BNA → RSW
WN621 · Mar 16, 2026 · 08:15 CD · boeing 737 max 8
86
Calm Score
"A smooth ride ahead — sit back and enjoy."
3h 10m
Duration
629 nm
Distance
31,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth Light Moderate Severe
Set an alert before your flight Beta
You still have 8 hours before departure. We'll notify you if this forecast changes.
💙
We know turbulence can feel scary — especially on long flights. This report is built for you: what bumps feel like, when they happen, and why you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying BNA → RSW
2 pilot reports along this route
1 / 2
Reporting smooth
0 / 2
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
BNA UA /OV BNA/TM 0450/FL000/TP A319/SK OVC019/WX LGT-MOD RA/RM ZME
20m ago
Smooth
BNA UA /OV BNA225040/TM 0449/FL170/TP B737/TB LGT-MOD 170-000/RM ZME
21m ago
AI-powered flight briefing
2,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 2,500 data points along your route from Nashville International, Nashville to Southwest Florida International Airport, Fort Myers.

Your Journey Beta

Your route takes you over the Appalachian Mountains and crossing the Gulf of Mexico – these areas can sometimes cause light turbulence.

Smooth Flight

We're expecting smooth conditions throughout your flight. You can sit back and relax.

Takeoff

Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 46 knots.

Landing

Landing should feel smooth with possible light bumps with typical approach conditions.

You're in Safe Hands

If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.

Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity. Learn more
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 3h 10min
Maximum turbulence expected per segment
Takeoff
Light
0:20-0:50
Light
0:50-1:20
Light
1:20-1:50
Smooth
1:50-2:20
Smooth
2:20-2:50
Light
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Airport conditions
Live weather at departure and arrival
BNA Nashville International — Departure
Visibility
5 mi
Wind
15 kt G25 (290°)
Sky
Broken
Temperature
14°C
Conditions
MVFR — Reduced visibility, minor delays possible
RSW Southwest Florida International Airport — Arrival
Wind
16 kt G26 (210°)
Sky
Overcast
Temperature
20°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Afternoon Flight Departure
Time of day
Afternoon Flight
Tip
Afternoon flights may encounter more turbulence due to thermal activity as the sun heats the ground, creating rising air currents.
When
Today
boeing 737 max 8
Category
Narrow-Body Aircraft
Size
Medium
Comfort
Single-aisle mainline jets like this offer a comfortable ride. While you may feel turbulence more than on wide-body aircraft, they are engineered to handle it smoothly.
Data sources & our approach
ZeroTurb's Custom Algorithm: Our proprietary ZeroTurb Index (ZTI) combines three meteorological indices weighted by their predictive accuracy — giving you transparent, passenger-focused turbulence probability instead of vague categories.

This forecast integrates data from:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.