Tornado Watch: Safety Tips
- Strong, persistnet rotation in the cloud base.
- Whirling dust or debris on the ground under a cloud base. Tornadoes sometimes have not funnel!
- Hail or heavy rain following either dead calm or a fast, intense, wind shift.
- Day or night – Loud, continous roar or rumble, which doesn’t fade in a few seconds like thunder.
- Night – small, bright blue-green to white flashes at ground level near a thunderstorm. These mean power lines are being snapped by very strong wind, maybe a tornado.
- Night – Persistent lowering from the cloud base, illuninated or silhouetted by lightning – especially if it is on the ground or there is a blue-green-white power flash underneath.
For more information on prevention and tips visit noaa.gov.