Severity of a storm know your terms, Stay Alert, Stay Safe.      

• Severe thunderstorm watch: The conditions are conducive to the development of severe thunderstorms in and around the watch area. These storms can produce large hail and/or wind gusts around 60 mph.
• Severe thunderstorm warning: Issued when a severe thunderstorm has been observed by spotters or indicated on radar, and is occurring or imminent in the warning area. These warnings usually last for a period of 30 to 60 minutes.
• Tornado watch: Conditions are favorable for the development of severe thunderstorms and multiple tornadoes in and around the watch area. People in the affected areas are encouraged to be vigilant in preparation for severe weather.
• Tornado warning: Spotters have sighted a tornado or one has been indicated on radar, and is occurring or imminent in the warning area. When a tornado warning has been issued, people in the affected area are strongly encouraged to take cover immediately.