Lehigh Valley Braces for First Heat Wave of the Season
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The Lehigh Valley is forecast to experience its first heat wave of the year, with temperatures anticipated to climb into the low to mid-90s from Wednesday, June 22nd, to Saturday, June 25th. Forecasters are warning residents to prepare for a rapid shift from seasonal temperatures to potentially risky heat levels. The National Weather Service Impending Heat Wave: What to Expect
Following a start to the week characterized by dreary conditions, showers, and below-average temperatures, a notable shift is on the horizon. After highs in the 60s on Monday and low 70s on tuesday,temperatures are expected to rise to the mid-80s by Wednesday,setting the stage for the heat wave. Did You Know? Heat waves are becoming more frequent and intense due to climate change, according to the Environmental Protection Agency (EPA). Rising Temperatures and Humidity
The National Weather Service anticipates a “Bermuda high pressure” system setting up offshore, leading to warm air moving into the region on Thursday. Highs are expected to reach the low 90s across the Lehigh Valley, with surface dew points in the low 70s, pushing heat index values into the mid- to upper-90s. The combination of high temperatures and humidity will create conditions where it feels significantly hotter than the actual air temperature. The heat index, also known as the “feels like” temperature, measures the effect of humidity on the human body’s ability to cool itself through perspiration. According to meteorologist, the heat wave is expected to be short-lived, likely ending by the following Wednesday. “This is not going to be an extended thing that’s going to last for weeks,” he stated. “This is just for a 3-to-4 day period.” Pro Tip: Stay informed about local weather forecasts and heat advisories. The National Weather Service issues alerts when prolonged periods of high heat and humidity are expected. A heat wave is typically defined as a period of abnormally hot weather lasting more than two days. These events can pose significant health risks, especially for vulnerable populations such as the elderly, children, and those with chronic illnesses. According to the Centers for Disease Control and Prevention (CDC), heat waves cause an average of 702 heat-related deaths in the United States each year. The impact of heat waves can be exacerbated by factors such as urbanization, which creates “urban heat islands” where temperatures are significantly higher than in surrounding rural areas. Additionally, socioeconomic factors can play a role, as individuals living in poverty may have limited access to air conditioning and other resources to cope with the heat. Symptoms of heatstroke include high body temperature, confusion, seizures, and loss of consciousness. Heatstroke is a medical emergency and requires immediate attention. To prevent heat-related illnesses, stay hydrated, avoid strenuous activities during peak heat hours, wear lightweight and light-colored clothing, and seek air-conditioned environments. The elderly, children, pregnant women, and individuals with chronic illnesses are most at risk during a heat wave. Heat exhaustion is a milder form of heat-related illness that can progress to heatstroke if not treated. Symptoms of heat exhaustion include heavy sweating, weakness, dizziness, and nausea. high humidity reduces the body’s ability to cool itself through perspiration, as sweat evaporates more slowly in humid conditions. Are you prepared for the upcoming heat wave? What steps will you take to stay cool and safe?Heat Wave Timeline
Day
temperature
Heat Index
Wednesday, June 22
Mid-80s
–
Thursday, June 23
Low 90s
Mid- to Upper-90s
Friday, June 24
Low 90s
Mid- to Upper-90s
Saturday, June 25
Low 90s
Mid- to Upper-90s
Abbreviated Heat Wave
Understanding Heat Waves
Frequently Asked Questions About Heat Waves
What are the symptoms of heatstroke?
Who is most at risk during a heat wave?
What is the difference between heat exhaustion and heatstroke?
how dose humidity affect the body’s ability to cool down?
