Tips

Emergency Weather Alerts: Essential Tips for Heat Waves

June 18, 2026 · The Clime Team

Heat waves pose significant health risks, especially during prolonged periods of excessive heat. Understanding heat-related alerts and implementing safety measures can help mitigate these dangers.

What Are Heat-Related Alerts?

The National Weather Service (NWS) issues specific alerts to inform the public about heat risks:

Heat Advisory: Issued when heat index values are expected to reach 100°F to 104°F, indicating potential health risks.
Excessive Heat Watch: Issued when conditions are favorable for an extreme heat event, with heat index values expected to reach or exceed 110°F.
Excessive Heat Warning: Issued when an extreme heat event is imminent, with heat index values expected to reach or exceed 110°F for at least 48 hours.

These alerts are designed to prompt timely actions to protect health and safety. (weather.gov)

How to Prepare for Extreme Heat

Preparation is key to minimizing heat-related risks:

Stay Informed: Regularly monitor local weather forecasts and heed any heat-related alerts issued by the NWS.
Create a Cooling Plan: Identify air-conditioned spaces, such as shopping malls or libraries, where you can seek refuge during extreme heat.
Prepare Your Home: Use drapes or shades to block out heat, weather-strip doors and windows, and consider installing window air conditioners to keep indoor temperatures manageable. (weather.gov)

How to Protect Yourself During a Heat Wave

Implementing safety measures can significantly reduce heat-related health risks:

Stay Hydrated: Drink plenty of water throughout the day, even if you don't feel thirsty. Avoid alcoholic and caffeinated beverages, as they can increase dehydration.
Dress Appropriately: Wear lightweight, loose-fitting, and light-colored clothing to reflect heat and sunlight.
Limit Outdoor Activities: Reschedule strenuous activities to cooler parts of the day, such as early morning or evening. If you must be outside, take frequent breaks in the shade and wear a wide-brimmed hat for protection.
Use Cooling Methods: Stay in air-conditioned environments when possible. If air conditioning isn't available, spend time in public places with cooling systems. Taking cool baths or showers can also help lower body temperature. (weather.gov)

How to Recognize and Respond to Heat-Related Illnesses

Being aware of heat-related illnesses and knowing how to respond is crucial:

Heat Exhaustion: Symptoms include heavy sweating, weakness, dizziness, nausea, and fainting. Move to a cooler environment, drink water, and rest. Seek medical attention if symptoms persist.
Heat Stroke: A severe condition with symptoms like a high body temperature (above 103°F), confusion, and loss of consciousness. Call 911 immediately and move the person to a cooler environment. Do not give fluids. (weather.gov)

How to Assist Vulnerable Populations During Heat Waves

Certain groups are more susceptible to heat-related illnesses:

Check on At-Risk Individuals: Regularly check on elderly family members, neighbors, and those with chronic health conditions. Ensure they have access to cool environments and are staying hydrated.
Care for Pets: Provide pets with plenty of water and shade. Never leave them in parked vehicles, as temperatures can rise rapidly to dangerous levels. (weather.gov)

How to Stay Informed About Heat Alerts

Staying informed is essential for safety:

Utilize Wireless Emergency Alerts (WEA): These alerts can be sent directly to your mobile device without the need for an app or subscription. They include information on extreme heat warnings and other emergencies. (weather.gov)
Monitor Trusted Sources: Regularly check updates from the National Weather Service and local news outlets for the latest information on heat conditions and safety recommendations.

By understanding heat-related alerts and implementing these safety measures, you can significantly reduce the risks associated with heat waves and protect yourself and those around you.

Highlights:

Emergency Preparedness: Excessive Heat
Severe Weather Awareness - Heat Waves
Understanding Heat Alerts