The National Weather Service (NWS) issues various weather alerts to help the public anticipate and prepare for hazardous atmospheric conditions. These alerts communicate the level of threat and the timeline for when severe weather may impact a specific area. Understanding the language used by the NWS is essential for public safety and minimizing potential property damage. This article clarifies the specific meaning of one such preliminary alert: the High Wind Watch.
Defining the High Wind Watch
A High Wind Watch is a preliminary alert issued by the National Weather Service when conditions are favorable for a significant high wind event. This alert signifies a potential threat, meaning forecast models indicate the possibility of hazardous winds in the near future. The watch is typically issued 12 to 48 hours before the expected onset of high winds, providing time for preparation.
The criteria for a High Wind Watch include the potential for sustained non-thunderstorm winds of 40 miles per hour (mph) or greater lasting for an hour or more. Alternatively, the watch is issued if wind gusts are expected to reach 58 mph or greater for any duration. This alert signals the need to begin monitoring the forecast closely.
Watch Versus Warning
The primary difference between a High Wind Watch and a High Wind Warning lies in the certainty and immediacy of the threat. A Watch indicates that conditions are favorable for high winds to occur. The threat is potential, and the timing is still somewhat uncertain, allowing for preparation and planning.
Conversely, a High Wind Warning is issued when the hazardous wind event is imminent or already occurring. This signals that protective action must be taken immediately, as the threat to life and property is very real. The shift from a Watch to a Warning represents a transition from a possible event to a likely or active hazard.
Preparing for High Winds
When a High Wind Watch is issued, the focus should be on proactive preparation since the event is not yet underway. This period provides an opportunity to secure outdoor items that could become dangerous projectiles in strong winds.
Securing Property and Supplies
Residents should take several steps during this preparatory phase:
- Secure lightweight outdoor objects, such as patio furniture, trash cans, and garden décor, by moving them into a garage or shed.
- Inspect the exterior of the home for potential hazards, such as loose tree limbs or dead branches that could fall onto structures or power lines.
- Charge all essential electronic devices, including cell phones and emergency power banks, to mitigate the impact of a potential power outage.
- Review emergency kits, ensuring they are stocked with non-perishable food, water, and necessary medications for a minimum of three days.