 You should never wait to receive an official warning before you leave. Buyers can start quickly and threaten homes and lives within minutes. Make sure you understand the three levels of warnings and what they mean. An advice level means an incident is occurring or has occurred in your area. Access information and monitor conditions. If you receive a watch and act warning, an emergency is developing nearby. You need to take action now to protect yourself and others. An emergency warning means you are in imminent danger and need to take action now. You will be impacted. Don't expect warnings in any particular order. An emergency warning could be the first you hear about.