TrnsWrld From United States of America, joined May 1999, 1033 posts, RR: 0
Reply 1, posted (3 years 6 months 3 weeks 5 days 21 hours ago) and read 20754 times:
I think its just you. Rough air doesnt care if its light outside or not It must just be coincidence for you that your night flights are bumpy. I am an air traffic controller and have not noticed pilots reporting more chop/turbulence during the night hours. It all just depends on the weather systems.
If anything on my flying experiences, night flights were generally smoother.
eaa3 From United States of America, joined Sep 2007, 1084 posts, RR: 0
Reply 2, posted (3 years 6 months 3 weeks 5 days 20 hours ago) and read 20731 times:
Quoting bibm (Thread starter): Is it me or anybody else thinks night flights are always much more turbulent than daytime flights? anything to do with weather in general?
I think it's the opposite. In the daytime storms can build up and become incredible powerful because of the heat. But at night time things cool down and storms lose a bit of their power. Also in the daytime there is more updraft.
LAXdude1023 From India, joined Sep 2006, 8076 posts, RR: 25
Reply 3, posted (3 years 6 months 3 weeks 5 days 20 hours ago) and read 20727 times:
I depends on where you are. The only places I can see it making much of a different is in tropical environments. There, it tends to be stormier in the afternoon to the late evening. That makes flights during those times bumpier.
ThirtyEcho From United States of America, joined Dec 2001, 1704 posts, RR: 1
Reply 4, posted (3 years 6 months 3 weeks 5 days 20 hours ago) and read 20714 times:
If you were to describe a typical summer day in the Texas "thunderstorm alley" it would start with a generally clear and calm morning with light winds and smooth rides reported. In late morning, cumulus clouds would start building, along with convective activity, making it bumpy near the ground and in the cloud tops. By mid afternoon, towering cumulus clouds would progress into thunderstorms along with locally strong winds, lots of chop and flights deviating weather. There would be lots of gusts and bumps near the ground. By evening, the thunderstorms are decreasing in intensity and becoming more isolated, except for the one or two that are still strong. By midnight, the Cbs are all gone, setting up the conditions for the calm morning.
This is so predictable that you can almost set your watch by it. Travelers in this area who are upset by turbulence quickly learn to travel in the early morning and to arrive at the destination before noon.
type-rated From , joined Dec 1969, posts, RR:
Reply 5, posted (3 years 6 months 3 weeks 5 days 18 hours ago) and read 20553 times:
My experience shows that turbulence due to convective activity starts to settle down around 5pm or so. As pointed out above around 7pm or so the lack of heat from the daytime usually makes the thunderstorms die out too resulting in less turnbulence.
tdscanuck From Canada, joined Jan 2006, 12710 posts, RR: 80
Reply 6, posted (3 years 6 months 3 weeks 5 days 11 hours ago) and read 20320 times:
Quoting bibm (Thread starter):
Is it me or anybody else thinks night flights are always much more turbulent than daytime flights?
My experience is the opposite...the major causes of turbulence are convection and shear between different wind layers. The former is much stronger in the day and the latter is mostly insensitive to time of day.
I suppose it depends on geography too. As a frequent pond hopper, the overnight transatlantic flights East would be really choppy as we rode the jet stream. Returning West during the day, the flights would generally be smoother. Winter North- South flights across the Indian subcontinent tend to be bumpy as the jetstream dips.
allrite From Australia, joined Aug 2007, 2525 posts, RR: 5
Reply 8, posted (3 years 6 months 3 weeks 4 days 9 hours ago) and read 19923 times:
I've been on choppy rides both night and day, but I wonder if turbulence experienced due to thunderstorm activity, especially in the tropics, is more likely during the night for visual reasons. I've noticed the forward lights switched on while our aircraft has flown through areas of heavy cloud activity during the night. Surely it must be easier to identify and steer around large cloud masses in daylight, assuming that they were isolated enough for this to be possible.
spacecadet From United States of America, joined Sep 2001, 3890 posts, RR: 11
Reply 10, posted (3 years 6 months 3 weeks 4 days 7 hours ago) and read 19822 times:
In the northeast US in summer, typically storms gather in the evening. During the storm season, we'll usually get several major thunderstorms per day right around 5PM or so. And the winds from those storms will stick around all night, usually, calming down slowly as the night goes on.
So I would also say it depends on where you are. Other areas may be different, but this area is definitely more turbulent at night, at least during summer.
I'm tired of being a wanna-be league bowler. I wanna be a league bowler!
kgaiflyer From United States of America, joined Jul 2008, 4466 posts, RR: 1
Reply 11, posted (3 years 6 months 3 weeks 3 days 21 hours ago) and read 19598 times:
Quoting tdscanuck (Reply 6): My experience is the opposite...the major causes of turbulence are convection and shear between different wind layers. The former is much stronger in the day and the latter is mostly insensitive to time of day.
I think you'll find this phenomena more common in mountainous areas. I remember a 7pm OO flight I was on December 29th out of Colorado Springs where the plane was so tossed about that the FA never unstrapped.