BLOG: Why is it often windier during the day? - | WBTV Charlotte

BLOG: Why is it often windier during the day?

(WBTV) (WBTV)
CHARLOTTE, NC (WBTV) -

I recently received a question about why the winds seem to always die down after the sun sets. And it is true. 

In the absence of an unusual, or overnight weather system, typically the winds are stronger during the day than at night. 

So why is that?

As the sun rises in the morning and begins heating the ground, that process heats the surface air which begins rising up into the atmosphere as bubbles or parcels of air, just like your boiling water on the stove. While those bubbles are rising, other parcels of air are sinking in between and replacing the rising air.

Typically, the winds aloft say around 3, 4 or 5,000 feet are stronger and the sinking air from those levels transports those winds down to the surface.

Once the sun sets, that process ends and the surface winds tend to weaken and calm down.

Copyright 2016 WBTV. All rights reserved.

  • Local NewsMore>>

  • Building climbing suspect arrested in uptown

    Building climbing suspect arrested in uptown

    Monday, July 23 2018 8:41 AM EDT2018-07-23 12:41:55 GMT
    Jackson (Source: Mecklenburg County Sheriff's Office)Jackson (Source: Mecklenburg County Sheriff's Office)

    Charlotte-Mecklenburg police say someone reported a man climbing near the top floor of a building in the 500 block of S Tryon Street around 6:49 p.m.

    More >>

    Charlotte-Mecklenburg police say someone reported a man climbing near the top floor of a building in the 500 block of S Tryon Street around 6:49 p.m.

    More >>
  • Former NFL player to visit JLT Fieldhouse at Salisbury Academy

    Former NFL player to visit JLT Fieldhouse at Salisbury Academy

    Monday, July 23 2018 8:34 AM EDT2018-07-23 12:34:59 GMT
    (Source: Salisbury Academy)(Source: Salisbury Academy)

    Former professional football player Jason Carthen is coming to Salisbury on Saturday to boost JLT Fieldhouse, a basketball and mentoring program, according to a news release from Salisbury Academy. 

    More >>

    Former professional football player Jason Carthen is coming to Salisbury on Saturday to boost JLT Fieldhouse, a basketball and mentoring program, according to a news release from Salisbury Academy. 

    More >>
  • 4 people drowned at NC beaches in 3 days – 2 while trying to save others

    Monday, July 23 2018 7:45 AM EDT2018-07-23 11:45:03 GMT
    Video screen grab (Source: NOAA Ocean Today)Video screen grab (Source: NOAA Ocean Today)
    Video screen grab (Source: NOAA Ocean Today)Video screen grab (Source: NOAA Ocean Today)

    The four deaths bring North Carolina’s total deaths related to rough surf and rip currents to 11 this year.

    More >>

    The four deaths bring North Carolina’s total deaths related to rough surf and rip currents to 11 this year.

    More >>
Powered by Frankly