Heat advisory affecting San Juan and Island counties from Sunday to Tuesday
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The NWS Seattle WA released a heat advisory at 12:38 p.m. on Thursday valid from Sunday 11 a.m. until Tuesday 5 a.m. for San Juan and Island counties.
The NWS informs, "Hot conditions with high temperatures up to 80 degrees to 85 degrees and low temperatures down to 55 to 60 degrees expected. This will pose a moderate risk of heat-related illness."
"Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration," states the NWS.
This advisory is in effect until Tuesday at 5 a.m.
During heat waves, consider the following tips from the NWS
- Stay hydrated: Drink plenty of fluids.
- Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
- Avoid direct sun exposure: Protect yourself and check on vulnerable relatives and neighbors.
- Child and pet safety: Never leave young children and pets unattended in vehicles, especially when car interiors can reach lethal temperatures within minutes.
- Be cautious outdoors: Take extra precautions if you work or spend time outside.
- Optimal Timing: When possible, reschedule strenuous activities to early morning or evening.
- Recognize early indicators: Learn to identify the warning signs of heat exhaustion and heat stroke.
- Dress comfortably: Wear lightweight and loose-fitting clothing.
To minimize risks during outdoor work, the Occupational Safety and Health Administration (OSHA) advises incorporating frequent rest breaks in shaded or air-conditioned areas. If someone experiences heat-related symptoms, promptly relocate them to a cool and shaded spot. In case of an emergency, dial 911.
Source: The National Weather Service
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This story was originally published June 11, 2026 at 12:41 PM.