Heat Warning vs Excessive Heat Warning – What's the difference?

Heat Warning vs Excessive Heat Warning – What's the difference?

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As the pattern of extreme heat and humidity continues throughout the Tennessee Valley, many may be curious as to why an excessive heat warning has not been issued for the Tennessee Valley.

The heat dome continues to push hot air and deep tropical moisture into the region, creating dangerous conditions. This dangerous heat is not only affecting us here in the Tennessee Valley, but throughout much of the central United States.

Much of the central United States has been placed under an extreme heat warning, in pink. Some of the states included are West Alabama, East Texas, and West Tennessee. For northern Alabama and south-central Tennessee, an excessive heat warning has been issued until 8 p.m. Friday.

Here in the Tennessee Valley, there are certain criteria we need to meet in order to issue an Excessive Heat Advisory or Heat Warning. A heat warning is issued when heat index values ​​are expected to reach between 105 and 109 degrees. An excessive heat warning is issued when heat index values ​​are expected to reach 110 degrees or higher.

So far this year there are 50 90 degree days in Huntsville

At this time, high heat index values ​​are expected to range between 105 to 109 degrees. However, the temperature in isolated locations will likely be close to 110 degrees or slightly higher. Whether we reach 110 degrees or not, it will be dangerously hot through the end of the week, so it will be essential to practice thermal safety.

Thermal safety during dangerous heat:

Knowing the signs of heat exhaustion and heat stroke can save someone's life. A person who may show signs of heat exhaustion will feel faint, nauseous, or vomit, and will sweat excessively. Symptoms of heatstroke include throbbing headaches, nausea, and lack of sweating.

There are lots of things you can do to protect yourself and your furry friend from extreme heat. First, make sure you stay hydrated by drinking plenty of fluids. Limit the amount of strenuous outdoor activities and seek shade when needed. In addition, you should consider limiting strenuous activities, such as exercising early in the morning or late in the evening when it is cooler.

Never leave your children or pets in the car. Temperatures inside the car will reach approximately 120 degrees within 10 minutes. Also, if you need to go out, wear lightweight, light-colored clothing. Be sure to look out for people who may be more sensitive to heat, such as children and the elderly.

Stick to the Met Office for the latest news on heat!

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