Heat Index 105 or Higher (store, car, grocery)

[TheOverdog]

I think the poster was was talking about the danger index or whatever it's called that bundles temp. + humidity + sun intensity when one is in full sun.

And that number passes about 110F for a few days every summer, and about 112F has been the record high for the past 5 or so years. So if the heat index temp gets to all the way to 120F, then that will be something.

[turf3]

Ahhh, heat index schmeat index. Those of us with hair in our ears rather than on top of our heads recall when we just knew it was bloody hot. More TV marketing to try to get you to watch the weather report when there's nothing to tell.

"It's summer in Texas. News flash - it's gonna be hot! Bet you never would have thought of that!"

When snow is expected in June, I want to know about it, otherwise creating new pseudo-measurements is not of interest to me.

[rantanamo]

nothing new about the heat index. Its there because it can be much more dangerous than just hot and dry.

[TheOverdog]

When snow is expected in June, I want to know about it, otherwise creating new pseudo-measurements is not of interest to me.

Then go wherever and do...anything else. The title of this post literally mentions the heat index.

[mSooner]

This is when I start daydreaming of living somewhere further north!

[SouthernBelleInUtah]

Heat Index, not actual temperature. However on my way home at 5 in the concrete canyons my car said it was actually 100 degrees. It doesn't calculate heat index.

BTW, I hail from New Orleans where the humidity can be stated at 110% on really bad days. Something to do with the way the algorithm is calculated. I will take Dallas any day over that or Houston!

[mm4]

It was 113 (actual; to hell with "indexes") a few days that month in 1980 when the high pressure ridge parked over the region, and it was just fine.

[Colt .45]

Summer of 2011 I was in Weatherford, it got to 111 and 113 a couple days.....

[whj3773]

car temps always few degrees hotter than actual

[wxf848]

The actual temperature is always measured in the shade, because what meteorologists want is the temperature of the air. The air absorbs almost no sunlight, so it isn't heated by sunlight, it's heated by the ground. The temperature of the air is not affected by shade or sunlight. A thermometer, however, is a solid object that will absorb sunlight and be heated by it, so a thermometer in sunlight will heat above the temperature of the air. How much depends on what it's made of. Human skin is the same way, in that it will heat above the temperature of the air in sunlight, and how much depends on its color and composition.

An "in the sun" temperature isn't a real thing. The temperature of the air is no different than in the shade, and the temperature of a solid object is determined by what that object is and how long it's in the sun. There's no universal "in the sun" temperature. Meteorologists use shade temperature because it's universal, and because the weather is controlled by the temperature of the air, not the temperature of a sunbaked thermometer.