Update: Heat advisory affecting Pennsylvania until Friday evening

The National Weather Service issued an updated heat advisory at 4:09 p.m. on Friday in effect until 8 p.m. for Berks, Lehigh, Northampton and Bucks counties.

“Heat index values up to 100 degrees,” says the weather service. “Showers and thunderstorms have brought relief from the excessive heat to many areas.”

“Hot temperatures and high humidity may cause heat illnesses,” explains the weather service.

Hot weather safety: Weather service tips for staying safe and healthy

• Stay hydrated: Make sure to drink plenty of fluids.
• Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
• Avoid sun exposure: Avoid direct sun exposure, protect yourself and check on vulnerable relatives and neighbors.
• Child and pet safety: Never forget to safeguard young children and pets by not leaving them unattended in vehicles, especially during scorching weather when car interiors can become life-threateningly hot.
• Caution outdoors: Take extra precautions if you work or spend time outside.
• Optimal timing: If possible, move strenuous activities to early morning or evening for more favorable conditions.
• Recognize heat-related issues: Educate yourself about the signs and symptoms of heat exhaustion and heat stroke.
• Dress comfortably: Wear lightweight, loose-fitting clothing to stay comfortable.

Additional tips for outdoor workers:

• The Occupational Safety and Health Administration (OSHA) recommends frequent rest breaks in shaded or air-conditioned areas for outdoor workers.
• If someone succumbs to the heat, promptly relocate them to a cool, shaded location.
• In emergency situations, dial 911 for immediate assistance.

These NWS heat safety directives are essential for safeguarding your well-being when facing high temperatures. Stay well-informed and take the necessary precautions to shield yourself and others from the potential hazards of extreme heat.

Advance Local Weather Alerts is a service provided by United Robots, which uses machine learning to compile the latest data from the National Weather Service.