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07/16/2017

SOPPING HEAT: More Triple Digit "Feels Like" Temps Ahead

Today is going to be another winner and just slightly more humid! A cold front will keep dew points at bay for the until mid-week. By the end of the week, the dew point begins to surge! You begin to notice the dew point at 60 degrees. At 65-70 it becomes "steamy" and anything beyond a 70 degree dew point is miserably sticky.

By Thursday - Sunday, our dew points will be in the low to mid 70s. But the air temperature will be in the mid 90s as well.  

Image 1

Therefore, the heat index, or the "feels like" temperature will be in the triple digits once again this week. And not just for one or two days, but for several.  
Image 5

The next few graphics below show the raw model data for the GFS. The white number is the air temperature and the orange number is the heat index. The heat index will only climb as time goes on this week. 

Image 5

The data suggests everyone will be experiencing triple digits by Friday. 

Image 5

And pushing 110 degrees in some places by next weekend!! That is INSANE heat! Of course this is almost a week away, so it is subject to change. We will be keeping a pulse on this all week, and updating the forecast. 

Image 5

Friday and Saturday we could potentially have several areas with heat indices exceeding 103°F. As shown in the table below, heat indices meeting or exceeding 103°F can lead to dangerous heat disorders with prolonged exposure and/or physical activity in the heat. 

Screen Shot 2017-07-16 at 10.33.53 AM

So what is the heat index?? 

Someone asked me today about the heat index and what it means. And I decided to spend some time during this blog to explain it a bit more and why it is so important. It is the "feels like temp" when the humidity is combined with the air temperature and how the human body responds to the heat. 

When the body gets too hot, it begins to perspire or sweat to cool itself off.  If the perspiration is not able to evaporate, the body cannot regulate its temperature.  Evaporation is a cooling process.  When perspiration is evaporated off the body, it effectively reduces the body's temperature.  When the atmospheric moisture content (i.e. dew point) is high, the rate of perspiration from the body actually decreases.  

Simply put, the human body feels warmer in humid conditions and it quite literally is air that you wear because we cannot sweat properly. 

Image 5

As I mentioned above, we will be making tweaks to the forecast all week and keeping you informed! Be sure to watch Jeremy this evening on WDRB News this evening for the latest and information about sporadic shower and storm chances as well. 

Let's connect! The links to my social media pages are below. 

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