Heat Will Build Further

What a hot afternoon!  Check out temps as of 3pm…


We’re not quite to record levels this afternoon, but we continue to inch closer each hour.  The record high temperature for the Nashville International Airport today is 91, set in 1962.

Loads of sunshine’s helping warm us up so much today…


All the sun’s in response to a large ridge of high pressure.  High pressure areas are created by a net sinking of air in the atmosphere.  Since rising air helps create clouds, typically, high pressure areas have few clouds associated with them.  That’s not ALWAYS the case, but usually is (that’s a topic for a whole other blog).


With this high pressure ridge, wind has been light.  As it scoots farther east tomorrow, the wind will bend even more around to the south and increase to 5-15 mph.  While that southerly wind won’t cause to humidity to climb all that much tomorrow, it’ll play a major role in driving even hotter air into the Mid State.  SO….tomorrow will be even hotter than today.

Before I type more on tomorrow though, let’s finish up with today.  This evening looks perfect for being outdoors.  It’ll remain sunny until the sun drops below the horizon at 7:46pm.  That means it won’t get completely dark until about 8:15-8:30pm.


Tomorrow, as that southerly wind gets established, we’ll have an especially fast warm-up!  Check out what I’m going for for highs Tuesday afternoon:

DT CITYCAST 3D1_EffectRandomDots_16x9

As the Preds face off with the Anaheim Ducks tomorrow night, we’ll have HEAT in downtown Nashville.  Plan on a summery feel if you go to the Plaza Party beforehand!


One other thing to be aware of tomorrow is we’ll have an Air Quality Alert in effect.  It goes into effect tonight at midnight and continues for the 24 hours that follow.


This will be a Code Orange Alert — our most common Air Quality Alert.  What that means is ground level ozone concentrations may reach unhealthy levels for some people.  Active children, the elderly, and those with breathing difficulty (e.g. asthma) should limit their time outdoors on Tuesday, as opposed to staying outdoors for hours on end.  The vast majority of the population won’t be affected though.

With more heat and little rain in this forecast, lawns and gardens will begin to get dry (without some TLC from you).  Coming up on Channel 4 News, beginning at 4pm, we’ll talk more about some help from mother nature (in that department) that we expect down the road.


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3 Responses to Heat Will Build Further

  1. Fred says:

    As of yesterday, this month still was still half a degree on the cooler side, however the positively July-esque week-long stretch of weather should put this May well into the above-average zone, before the eventual return to pretty normal conditions. Obviously, as we’ve not quite reached the mid-May point, the long-term forecast looks sketchy at best. What is clear, though, is that this month is already winning the award for the sunniest one so far. 2017 has not, so far, been exactly generous in that department, January-April combined for a total of just 18 fair-weather days (“fair”, in this case, referring to the meteorological definition of the term), vs the average of 29 such days for that period, March having the biggest share with 7. We should tie this number, as of today. On the other hand, long spells of sunshine, lack of rain and light wind movement tend to produce bad air (typically due to elevated concentrations of ozone), hence the air quality alert.

    • paulheggen33 says:

      Always seems to me that the air quality alerts are reactive rather than proactive — I doubt that the air quality today will be as bad as yesterday, with the stronger wind stirring things around. Yet I still have to go on-air and talk about it like today is the bigger problem…

  2. Fred says:

    I’m not sure, is air quality forecast a more challenging task than forecasting weather? It would make sense that this time of year intense UV radiation and light wind would generate more ozone and photochemical smog. Today, though, there’s more cloud cover, even if it’s mostly comprised of wispy, cirrus-like formations (above my place, at least), so, yes, air should not be as bad as yesterday.

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