The National Weather Service has issued a heat advisory for Cobb County and other metro Atlanta counties for Tuesday, August 22, 2023 in effect from 11 a.m to 10 p.m.
What is in the advisory?
The advisory gives the following details:
…HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 10 PM EDT
* WHAT…Heat index values up to 106 expected.
* WHERE…Portions of north central and northwest Georgia,
including downtown Atlanta and surrounding areas.
* WHEN…From 11 AM to 10 PM EDT Tuesday.
* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses to occur.
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
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 lightweight and loose fitting clothing when
possible. 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.
What counties are affected?
The following counties are included in the hazardous weather outlook:
Floyd, Bartow, Polk, Paulding, Cobb, North Fulton, Gwinnett, Barrow,
Haralson, Carroll, Douglas, South Fulton, DeKalb
Including the cities of Rome, Cartersville, Marietta, Atlanta,
Lawrenceville, Carrollton, Douglasville, East Point, and Decatur
What is the heat index?
The NWS defines the heat index as follows on its website:
The heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. This has important considerations for the human body’s comfort. When the body gets too hot, it begins to perspire or sweat to cool itself off.
Chart from NOAA showing relationship between relative humidity and temperature in heat index
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About the National Weather Service
The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).
The NWS describes its role as follows:
“The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy.
“These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.”