Tornado watch vs warning
A watch means tornadoes are possible, so get ready. A warning means a tornado is happening or about to, so take shelter now.
| Alert | What it means | What to do |
|---|---|---|
| Tornado Warning | A tornado has been seen or radar shows one forming. | Take shelter now in a basement or interior room. |
| Tornado Emergency | A rare, confirmed violent tornado heading for a populated area. | Take cover immediately. |
| Tornado Watch | Conditions are right for tornadoes over the next few hours. | Know where you would shelter and watch for warnings. |
| Severe Thunderstorm Warning | A storm with damaging wind or large hail is happening now. | Move indoors, away from windows. |
| Severe Thunderstorm Watch | Severe storms are possible. | Stay alert for warnings. |
| Special Marine Warning | Dangerous conditions on the water, which can include waterspouts. | Get off the water. |
Based on National Weather Service definitions. See the tornado safety guide for more.