Departure timing — compare forecast conditions
An illustrative timeline shows why departure time can change the conditions on a drive.
This 22-second video uses an example weather timeline to show how leaving a little earlier or later can change what you meet on the road. It is an illustration, not a forecast for your trip.
What the video shows
An illustrative 48-hour timeline plays out as weather moves across a route. A front may cross part of the drive between an early and a later departure, so the same trip can meet calm skies at one hour and rain or wind at another.
Why departure time matters
Weather moves, and so do you. On a long drive you reach each part of the route at a different time, so the conditions that matter are the ones forecast for when you get there, not only the conditions at your starting point or destination.
Compare your available options
In the planner, enter your route and departure time. Forecasts are checked at stops and sampled points for your estimated arrival times. You can then compare departures within your plan’s search range: ±1 hour on Free, ±2 hours on Road Tripper, and ±4 hours on Pro or Enterprise.
Make a plan you can revisit
Read the route details and advisories alongside the comparison. A lower forecast risk does not guarantee a clear road. Check for updates before leaving, and adjust your plan as conditions change.
Key takeaways
- The same route can look very different a few hours apart.
- Look at the forecast for each part of the route at the time you will reach it.
- Compare a few realistic departure times, including your need for rest and daylight.
- Waiting helps only if conditions and your ability to drive improve. Check again before you go.
What is the storm window?
This video uses an example weather timeline. In the planner, compare departures around your selected time within your plan’s search range: ±1 hour on Free, ±2 on Road Tripper, and ±4 on Pro or Enterprise.
Does it look at my whole route or just the destination?
The planner checks forecasts at stops and sampled points along your route for your estimated arrival times. Review the details and available local advisories.
Do I need an account to watch this?
No. The videos are open to everyone. You only need a free account to analyze and save your own routes.
Can I try a departure window without my own route?
Yes. The best time to leave example lets you scrub through a simulated 48-hour storm and change the trip duration. When you are ready, plan your own trip or browse more videos.
See how a trip plan comes together.
Explore a saved route, inspect its weather, or compare recorded EV departure estimates.
Saved examples, not current forecasts. Exploring a demo does not use your trip allowance.