What is the Difference Between Weather Advisory and Watch?

The difference between a weather advisory and a watch lies in the level of severity and the potential impact of the weather event. Here are the key distinctions:

• Weather Advisory: An advisory is issued when a hazardous weather or hydrologic event is occurring, imminent, or likely, but the conditions are not severe enough to warrant a warning. Advisories are for less serious conditions than warnings, but they can still cause significant inconvenience, and if caution is not exercised, they could lead to situations that may threaten life and/or property.
• Watch: A watch is used when the risk of a hazardous weather or hydrologic event has increased, but its occurrence, location, or timing is still uncertain. It is intended to provide enough lead time for those who need to set their plans in motion. A watch means that hazardous weather is possible, and people should have a plan of action in case a storm threatens. They should also listen for later updates.

In contrast, a warning is issued when a hazardous weather or hydrologic event is occurring, imminent, or likely, and the conditions pose a threat to life or property. Warnings require people in the path of the storm to take protective action.

Comparative Table: Weather Advisory vs Watch

A table comparing the differences between a weather advisory and a watch is provided below:

In summary, a weather advisory is issued for less serious weather conditions that still cause significant inconvenience, while a watch is issued when there is potential for hazardous weather, but its occurrence, location, or timing is uncertain.