Weather guides
Weather, explained so you can decide.
What the numbers in a forecast actually mean, what they are worth trusting, and what to do about them.
Tropical depression, tropical storm, hurricane: what changes at each step
A tropical depression has winds up to 38 mph. At 39 mph it becomes a named tropical storm, and at 74 mph a hurricane. Here is what changes at each step.
· 3 min read
Flood watch, flood warning, flash flood warning: what each one means
A flood watch means flooding is possible. A warning means it is happening or about to. Here is what each National Weather Service flood alert asks of you.
· 3 min read
Watch, warning, advisory: what each one is asking you to do
A watch means conditions are favourable. A warning means it is happening or about to. Here is what each National Weather Service alert asks of you.
· 3 min read
How to read a hurricane cone without misreading it
The hurricane cone shows where a storm's centre may go, not how big it is. Here is what it means, why it widens, and what to read next to it.
· 4 min read
What a 40% chance of rain actually means
A 40% chance of rain is not 40% of the day or 40% of the sky. Here is what forecasters actually mean by it, and what to check instead.
· 3 min read