To find the Heat Index temperature, look at the Heat Index chart below. As an example, if the air temperature is 96°F and the relative humidity is 65%, the heat index--how hot it feels--is 121°F. The Weather Service will initiate alert procedures when the Heat Index is expected to exceed 105°-110°F (depending on local climate) for at least 2 consecutive days.  IMPORTANT: Since heat index values were devised for shady, light wind conditions, exposure to full sunshine can increase heat index…

NOAA National Weather Service Heat Index. Full exposure to sun (on the sand dunes and at the beach) increases the heat index value by up to 15 degrees!

Wireless Weather Station with Heat Index and Dew Point

Wireless Weather Station with Heat Index and Dew Point

La Crosse Technology Wireless Weather Station with Heat Index and Dew - The Home Depot

Iran city hits suffocating heat index of 165 degrees, near world record - The Washington Post

Iran city hits suffocating heat index of 165 degrees, near world record

August 2015 —Scorching 'heat dome' over Middle East sees temperatures soar to in Iran.

General Tools 75 mm Heat Index Monitor with Black Ball

General Tools 75 mm Heat Index Monitor with Black Ball

Visit The Home Depot to buy General Tools Heat Index Checker with Ball

You think its hot in Toronto? #TOWeather #BigFlatRoofer  Iran city hits suffocating heat index of 165 degrees, near world record - The Washington Post

Iran city hits suffocating heat index of 165 degrees, near world record

Iran city hits suffocating heat index of 165 degrees, near world record. This is the second highest level we have ever seen recorded.

4 PM Heat Index values across the area are running in the 100-107 degree range. #dfwwx #ctxwxpic.twitter.com/hZBtEOGGW5 - https://blog.clairepeetz.com/4-pm-heat-index-values-across-the-area-are-running-in-the-100-107-degree-range-dfwwx-ctxwxpic-twitter-comhzbteoggw5/

4 PM Heat Index values across the area are running in the 100-107 degree range. #dfwwx #ctxwxpic.twitter.com/hZBtEOGGW5 - https://blog.clairepeetz.com/4-pm-heat-index-values-across-the-area-are-running-in-the-100-107-degree-range-dfwwx-ctxwxpic-twitter-comhzbteoggw5/

Heat related deaths are preventable: look before you lock for children, pets and others with limited mobility.  It takes just 10 minutes for a car to overheat when it 80 degrees outside.

Fri & Sat temps in the upper w/ heat index of 100 degrees or more, plus possibly severe storms

Iran city hits suffocating heat index of 165 degrees, near world record - The Washington Post

Iran city hits suffocating heat index of 165 degrees, near world record

Heat Index Psychrometer Pen

Heat Index Psychrometer Pen

Pens

Scientists reacted with astonishment.

The planet had its biggest temperature spike in modern history in February

A tornado touched down just seven miles north of downtown Boston this morning, as a sharp cold front cut through eastern New England.

Iran city hits suffocating heat index of 165 degrees, near world record - The Washington Post

Iran city hits suffocating heat index of 165 degrees, near world record

This is the second highest level we have ever seen recorded.

Temperatures in Iranian city of Ahvaz hit 129 degrees (54C). The city has a population of more than 1 million. The humidity was high too. The heat index — a measure of how hot it feels factoring in the humidity — exceeded 140F (60C). This combination of heat and humidity was so extreme that it was beyond levels the heat index was designed to compute. Scientists estimate that by 2100 much of the Middle East will be too hot for human survival.

Iran city swelters under joint hottest temperature ever recorded on Earth

Temperatures in Iranian city of Ahvaz hit 129 degrees (54C). The city has a population of more than 1 million. The humidity was high too. The heat index — a measure of how hot it feels factoring in the humidity — exceeded 140F (60C). This combination of heat and humidity was so extreme that it was beyond levels the heat index was designed to compute. Scientists estimate that by 2100 much of the Middle East will be too hot for human survival.

Heat index in Iran hits staggering 163 degrees

Heat index in Iran hits staggering 163 degrees

163 degree heat index! And with hot flashes too! iraq - Provided by Business Insider

Heat related deaths are preventable: look before you lock for children, pets and others with limited mobility.  It takes just 10 minutes for a car to overheat when it 80 degrees outside.

Cars are NOT safe for unattended children & pets. Outside temps don’t have to be hot for dangerous heat inside.

OSHA's Campaign to Prevent Heat Illness in Outdoor Workers | Protective Measures to Take at Each Risk Level - Actions for High Risk Conditions: Heat Index is 103 degrees F to 115 degrees F | Occupational Safety and Health Administration

Protective Measures to Take at Each Risk Level - Actions for High Risk Conditions: Heat Index is 103 degrees F to 115 degrees F

"I think the heat index during my workout today is somewhere between OMG and WTF!" #Fitness #Humour

"I think the heat index during my workout today is somewhere between OMG and WTF! Totally me! At least I know I'm getting stronger because of the elements I face.

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