Roy, WA Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Roy.

Use the Radar Maps link provided to understand the trajectory of a storm.

Air Quality Alert issued August 27 at 10:00AM PDT by NWS Spokane WA

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology An Air Quality Alert has been issued for Chelan, Douglas, and Okanogan Counties until further notice due to current and expected smoke from regional fires. Particulate matter (PM2.5) may reach Unhealthy levels for areas downwind from active wildfires. Be sure to check air monitors in your area before outdoor activities. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air.

Red Flag Warning issued August 27 at 2:56AM PDT until August 27 at 8:00PM PDT by NWS Spokane WA

* Affected Area: Okanogan Valley (Zone 703) and Waterville Plateau (Zone 706). * Winds: Southwest 15 to 25 mph with gusts up to 35 mph, becoming northwest 10 to 20 mph with gusts up to 30 mph early Thursday evening. * Relative Humidities: 16 to 24 percent. * Impacts: Rapid fire spread is possible with any new or ongoing fires.

Air Quality Alert issued August 26 at 11:54AM PDT by NWS Pendleton OR

The Washington State Department of Ecology has issued an Air Quality Alert until noon PDT Friday. An Air Quality Alert has been issued for Kittitas County through Friday August 28 at noon due to current and expected wildfire smoke from regional fires. Particulate matter (PM2.5) may reach Unhealthy to Sensitive Groups to Unhealthy levels for areas directly downwind from active fires, especially overnight and during the early morning hours. Be sure to check air monitors in your area before outdoor activities. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid, strenuous outdoor activity, and follow tips for cleaner indoor air. Information from the Washington Department of Ecology web site is available at http://www.ecy.wa.gov/air.html or call 360-407-6000.

Air Quality Alert issued August 26 at 10:50AM PDT by NWS Spokane WA

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology An Air Quality Alert has been issued for Chelan, Douglas, and Okanogan Counties until further notice due to current and expected smoke from regional fires. Particulate matter (PM2.5) may reach Unhealthy levels for areas downwind from active wildfires. Be sure to check air monitors in your area before outdoor activities. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air.