Hazardous Weather Outlook for Greenville-Spartanburg Area

Issued by the National Weather Service Greenville-Spartanburg SC

3:47 AM EDT Fri Jun 21, 2024

The National Weather Service (NWS) Greenville-Spartanburg SC has issued a Hazardous Weather Outlook for northeast Georgia, Piedmont North Carolina, western North Carolina, and upstate South Carolina. This outlook is valid from Friday, June 21, 2024, to Thursday, June 27, 2024. Weather enthusiasts and residents should prepare for a significant heatwave in the coming days.


Issued at 3:47 AM EDT on Friday, June 21, 2024, this outlook provides detailed information about expected weather conditions in the specified regions. Weather enthusiasts and those planning outdoor activities should take note of the forecasted high temperatures and potential heat-related risks.

Today and Tonight

For today and tonight, hazardous weather is not expected. This provides a respite before the anticipated heatwave over the next few days.

Saturday Through Thursday: Heatwave Alert

The forecast indicates a significant rise in temperatures from Saturday through Wednesday, with high temperatures expected to reach the middle 90s. Maximum heat indices—a measure of how hot it feels when relative humidity is factored in with the actual air temperature—may range from 100 to 104 degrees on Sunday, Monday, and Wednesday. This will primarily affect the Charlotte metro area and the Upper Savannah River basin.

Potential Impacts

These high temperatures and heat indices can pose serious health risks, particularly to:

  • Heat-sensitive individuals: Those with preexisting health conditions, the elderly, and young children.
  • Outdoor workers: Those spending extended periods of time outside should take precautions to avoid heat-related illnesses.

Safety Precautions

To mitigate the risks associated with high temperatures, consider the following safety measures:

  • Stay Hydrated: Drink plenty of water throughout the day.
  • Take Breaks: If working outdoors, take frequent breaks in shaded or air-conditioned areas.
  • Wear Appropriate Clothing: Light, loose-fitting clothing can help keep your body cool.
  • Avoid Strenuous Activities: Limit heavy physical activities during peak heat hours, typically between 10 AM and 4 PM.
  • Check on Vulnerable Individuals: Ensure that elderly family members, neighbors, and those with health conditions are staying cool and hydrated.

Spotter Information Statement

At this time, no spotter activation is needed. However, weather enthusiasts and trained spotters should stay alert for any updates.

Additional Resources

For more detailed information and real-time updates, visit the following resources:

How to Stay Informed

Staying informed about the latest weather updates is crucial, especially during extreme weather conditions. Here are some tips:

  • Follow NWS Greenville-Spartanburg on Twitter: Get real-time updates and alerts.
  • Download Weather Apps: Use apps like Weather Underground or The Weather Channel for instant notifications.
  • Local News: Keep an eye on local news stations for up-to-date weather reports and advisories.

Understanding Heat Index

The heat index is a crucial factor in understanding how the temperature feels to the human body. It combines air temperature and relative humidity. For example, if the temperature is 90°F with 70% humidity, it feels like 105°F. Prolonged exposure or physical activity under such conditions can lead to heat-related illnesses.

Symptoms of Heat-Related Illnesses

Recognizing the symptoms of heat-related illnesses can save lives. Here are some signs to watch out for:

  • Heat Exhaustion: Heavy sweating, weakness, cold, pale and clammy skin, fast and weak pulse, nausea or vomiting, and fainting.
  • Heat Stroke: High body temperature (above 103°F), hot, red, dry or moist skin, rapid and strong pulse, and possible unconsciousness.

Climate Trends and Historical Context

Understanding the broader context of this heatwave can provide valuable insights. The Southeastern United States often experiences extreme heat during the summer months, and this trend has been increasing due to climate change. According to NOAA, the frequency of heatwaves in the U.S. has tripled since the 1960s, and the average length of heatwaves has increased by about one day.

Local Climate Data

For a detailed analysis of local climate data, including historical temperature trends and predictions, visit NOAA’s Climate Data Center. This resource provides comprehensive data and tools for understanding weather patterns and preparing for extreme weather events.

Preparing for Future Heatwaves

Given the increasing frequency and intensity of heatwaves, it’s essential to prepare for future events:

  • Home Preparation: Ensure your home is equipped with air conditioning or effective cooling systems. Consider installing window films or shades to reduce indoor heat.
  • Community Resources: Know the location of local cooling centers and public spaces with air conditioning.
  • Emergency Kits: Assemble emergency kits that include water, cooling towels, and other heatwave essentials.

While the immediate forecast for today and tonight shows no hazardous weather, the upcoming days are expected to bring a significant heatwave. Proper preparation and awareness can help mitigate the risks associated with extreme heat. Stay informed, stay hydrated, and stay safe.



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