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-   -   "Thundersnow" (https://www.airlinepilotforums.com/technical/92743-thundersnow.html)

feltf4 01-13-2016 02:25 PM

"Thundersnow"
 
Hey I got thinking the other night, saw some "thundersnow"... Not even sure that's the technical term for it but I know I don't see it often...

Anyone experience flying through it? Just curious what's the dangers. I'm assuming there's not "connectivity" to the storm... But I'm guessing it's still bumpy... Fill me in so I can decide if I want to penetrate next time

JamesNoBrakes 01-13-2016 03:00 PM

It's a thunderstorm.

That makes snow.

tomgoodman 01-13-2016 04:47 PM

I was skiing once when the lifts had to be shut down temporarily due to thundersnow on the mountain.

viper548 01-13-2016 05:24 PM

Saw it a few times when I lived in Colorado Springs. The snow has lower reflectivity than rain, so it won't look as bad on radar.
I also saw it snow with a temp of 10c there too.

Panzon 01-13-2016 05:28 PM

I've seen it in Seattle and Chicago. It pretty neat.

Winston 01-13-2016 07:11 PM


Originally Posted by feltf4 (Post 2046463)
I'm assuming there's not "connectivity" to the storm... But I'm guessing it's still bumpy... Fill me in so I can decide if I want to penetrate next time

Do you mean "convectivity"? As in "convection"?

Yes there is. It's a thunderstorm in sub-zero conditions. Precipitation sublimates from vapor directly to a solid. Same process that creates snow instead of rain (or freezing rain, or ice pellets), except it's convective instead of stable.

Don't fly through it.

Stihlsaw 01-14-2016 02:06 AM

Yup it's just a thunderstorm ,,,,few years back coming home empty in early evening, didn't have the radar up until we saw what we thought was a flash of lightning? I was dumbfounded? Came down thru the last layer of haze and sure enough there's cumulus build ups ! Had to ask for deviations to get around a line as if it were mid July!

TSRAGR 01-14-2016 03:07 AM

It's true, and if it doesn't make you laugh every time it's forecast, u got problems...

Sent from my SM-T350 using Tapatalk

feltf4 01-14-2016 08:06 AM


Originally Posted by Winston (Post 2046644)
Do you mean "convectivity"? As in "convection"?

Yes there is. It's a thunderstorm in sub-zero conditions. Precipitation sublimates from vapor directly to a solid. Same process that creates snow instead of rain (or freezing rain, or ice pellets), except it's convective instead of stable.

Don't fly through it.

Yes I cans nots spell

John Carr 01-14-2016 07:09 PM

Ask Joe Cantore.


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