In addition to the Heat Advisory already issued by the National Weather Service this morning, the weather agency has also issued an Excessive Heat Watch for Friday through Sunday, July 19-21, 2019.

The combination of heat and high humidity will lead to dangerously hot conditions through the weekend across much of the region. The Excessive Heat Watch includes Berks County and the entire region.

Heat index values 100 to 110 Thursday, then 110 to 115 Friday through Sunday due to temperatures in the mid to upper 90s, and dewpoints in the mid 70s. Some areas may reach 100 degrees for daytime temperatures on Saturday.

The highest heat index values will occur around mid day. Additional advisories or warnings are expected during subsequent days. The excessive heat may quickly cause heat stress or heat stroke.

How to prepare for high heat

A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water.

To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency, call 9 1 1.

An Excessive Heat Watch means that a prolonged period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are possible. Drink plenty of fluids, stay in an air conditioned room, stay out of the sun, and check up on relatives and neighbors.