Should you cancel outdoor plans because of rain? Check these 4 things first
- Ric Kearbey
- 3 days ago
- 4 min read
Your kid has a soccer game at 6 p.m.
You check your phone.
40% chance of rain.
So, do you cancel?
Not yet.
In fact, that percentage staring back at you may not even be the most important part of the forecast.
Before you cancel the soccer game, cookout, beach trip or outdoor concert, check four things:
Chance. Time. Type. Impact.
Learn those four, and you’ll make much better weather decisions for the rest of your life.
1. What is the actual chance of rain?
Start with the number.
If your forecast says there’s a 40% chance of rain, that means there’s a 4-in-10 chance of measurable precipitation at your location during that forecast period.
It doesn’t mean rain for 40% of the day. And it doesn’t simply mean 40% of your town will get wet.
We explain exactly what that percentage means in What does a 40% chance of rain mean? Probably not what you think.
But knowing the probability is only the beginning.
Because if your soccer game starts at 6, there’s another question that matters a lot more.
2. When is the rain actually expected?
A daily rain percentage can hide the most useful information.
Timing.
Suppose your app shows a 40% chance of rain for Tuesday.
Open the hourly forecast and you may discover the highest chances are from 1 to 4 p.m., then quickly fall before your 6 p.m. soccer game.
That 40% suddenly looks very different.
Now flip it around.
The same daily forecast could show rain chances climbing during the afternoon and peaking from 5 to 8 p.m.
Same soccer game.
Same 40% displayed on the daily forecast.
Completely different decision.
That’s why you should always compare the hourly forecast with the time of your plans.
But even timing doesn’t tell the whole story.
3. What kind of weather are we talking about?
This may be the part people overlook most.
There’s an enormous difference between a 40% chance of a passing light shower and a 40% chance of thunderstorms.
If you’re headed to the grocery store and a brief shower is possible, grab an umbrella.
If you’re headed to a soccer field and thunderstorms are possible, now we have another concern:
Lightning.
And if severe thunderstorms are possible, damaging wind, large hail or tornadoes may enter the conversation too.
This is why probability and severity should never be confused.
A lower rain probability does not mean that whatever happens will automatically be weak.
You could have an 80% chance of harmless light rain and a much lower chance of a thunderstorm you absolutely don’t want to be underneath.
Which brings us to the question that really decides whether you should change your plans.
4. What happens if the weather actually reaches you?
Think about impact.
A shower during your trip to the grocery store?
Annoying.
Rain during an outdoor wedding?
Bigger problem.
Thunderstorms during a youth soccer game?
Now you’re dealing with lightning and people standing in an exposed outdoor area.
The same forecast can mean completely different things depending on what you’re doing and how vulnerable that activity is to the weather.
So instead of asking only:
“What’s the chance it rains?”
Ask:
“What happens if I’m in the percentage that gets it?”
That’s a much better question.
When should you make the final decision?
Here’s one more mistake people make.
They check tomorrow’s forecast today, see an ugly rain icon and make a final decision immediately.
Don’t treat an old forecast like a new one.
As your plans get closer, check again.
Look at the newest hourly forecast.
Check radar to see whether rain or thunderstorms have actually developed and where they’re moving.
And if thunderstorms or severe weather are possible, check for watches and warnings before heading outside.
The closer you get to your event, the more information you’ll usually have to work with.
So should you cancel outdoor plans because of rain?
If you’re wondering whether you should cancel outdoor plans because of rain, don’t let one rain percentage make the decision for you.
Remember four things:
Chance: What are the odds it happens at my location?
Time: Does that chance overlap with my plans?
Type: Are we talking about light rain, thunderstorms or potentially severe weather?
Impact: What happens to my plans if that weather actually reaches me?
Then, as the time gets closer:
Check again.
That’s it.
You don’t need to be a meteorologist.
You just need to stop asking one little percentage to answer a question it was never designed to answer.
The next time your phone says 40% chance of rain, don’t immediately cancel the soccer game.
Find out when, find out what kind, think about what it would mean for you, and check again before you head out the door.
That’s how you turn a weather forecast into a decision you can actually use.
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