Storm, decoded. It is just the sky moving fast.
Every storm, from a ten-minute summer downpour to a hurricane, is the same basic machine: warm air rises, cool air rushes in to replace it, and the clash makes wind, clouds, and rain. The differences are only scale, fuel, and season. This page is the short version of what a storm is, the three families worth knowing, and what to do when a warning names one.
WHAT IT ACTUALLY IS.
Low pressure, rising air, and a lot of energy.
A storm is a disturbed state of the atmosphere, usually centered on an area of low pressure where air is rising instead of sitting still. Rising air cools as it climbs, its water vapor condenses into clouds, and the heat released by that condensation feeds the rising motion further — which is why a storm, once started, tends to keep feeding itself. The visible symptoms follow from that engine: strong or gusty winds as air rushes toward the low, clouds building tall, and precipitation when the rising air can no longer hold its moisture.
THE THREE FAMILIES.
Thunderstorm, tropical cyclone, winter storm.
Most storms you meet belong to one of three families. A thunderstorm is the small, fast one: a single tall cloud, or a line of them, powered by warm humid surface air, bringing lightning, heavy rain, and sometimes hail or a tornado. A tropical cyclone — hurricane, typhoon, or tropical storm, same machine, different ocean — is the huge slow one, fed by warm ocean water over days and spanning hundreds of miles. A winter storm is the cold-season cousin, where the same low-pressure engine pulls in freezing air and drops snow, sleet, or freezing rain instead. The names change with the season and the sea, but the engine underneath is the same rising air.
WHAT TO DO ABOUT IT.
Watch, warning, and the one that means "now."
Forecasters sort storms into two plain words that people mix up. A watch means conditions are favorable and a storm could form — time to check your plan and keep an eye on the sky. A warning means a storm is happening or about to happen where you are — time to act, get inside, and stay off the roads until it passes. Brzzy's forecast, live radar, and severe weather alerts turn the same kind of ground truth into a plain-language answer before the sky turns: go outside, or wait it out.
What is a storm?
A storm is a disturbed state of the atmosphere, usually centered on an area of low pressure where air is rising. Rising air cools, its water vapor condenses into clouds, and the heat released feeds the rising motion further, producing strong winds and usually rain, snow, or hail.
What are the main types of storms?
The three main families are thunderstorms, tropical cyclones (hurricanes and tropical storms), and winter storms. Thunderstorms are small and fast and bring lightning and heavy rain; tropical cyclones are huge and slow and fed by warm ocean water; winter storms bring snow, sleet, or freezing rain in cold air.
What is the difference between a storm watch and a storm warning?
A watch means conditions are favorable for a storm to form — check your plan and keep watching the sky. A warning means a storm is happening or is about to happen where you are — act now, get inside, and stay off the roads until it passes.
What makes a storm "severe"?
A thunderstorm counts as severe when it produces damaging winds, large hail, or a tornado — the thresholds forecasters use to issue a severe thunderstorm warning. Not every loud storm is severe: heavy rain alone, however dramatic, does not make a storm severe.
Does Brzzy warn me about storms?
Brzzy shows your local forecast with hourly updates, live radar, severe weather alerts, GIF forecasts, and activity ratings that weigh the sky for your plans. Brzzy is free to download on iPhone.
More from Brzzy: Full weather glossary, Thunderstorms, Hurricane
