Giant Snowflakes [Rimed Dendrites]

MikeG

Senior Member.
In keeping with the snowstorm that has engulfed my part of the country, a friend sent me this old post from Global Skywatch.

Giant Snowflakes.jpg

http://globalskywatch.com/chemtrails/ubbthreads.php?ubb=showflat&Number=15045#Post15045

Metabunk has covered “fake snow” claims in many, many threads.

https://www.metabunk.org/debunked-fake-snow-burning-snow.t3026/
https://www.metabunk.org/dane-wigington-nucleated-fake-snow-demystified.t3043/

I could not find any references to “giant snowflakes,” so I did a little research.

They are called dendrites


https://en.wikipedia.org/wiki/Dendrite_(crystal)

In fact, they are very beautiful.

snowflake_c_NOAA_300.jpg

http://www.noaa.gov/features/02_monitoring/snowflakes_2013.html

Anyway, back to shoveling!
 

deirdre

Senior Member.
Nice @MikeG . seems to be a 'popular' subject with this storm too (at least NY area).



i'm a little confused about if dendrites and sector plates are the same thing.
sp.PNG



PDF attached isnt as old as it looks :)
http://www.oema.us/files/Snowflake_identification_manual.pdf
 

deirdre

Senior Member.

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MikeG

Senior Member.
Nice @MikeG . seems to be a 'popular' subject with this storm too (at least NY area).



i'm a little confused about if dendrites and sector plates are the same thing.
View attachment 17188



PDF attached isnt as old as it looks :)
http://www.oema.us/files/Snowflake_identification_manual.pdf

Thank you.

I don't know anything about sector plates, but there seem to be quite a few resources available to find out.

http://www.its.caltech.edu/~atomic/snowcrystals/class/class-old.htm
 

deirdre

Senior Member.
Thank you.

I don't know anything about sector plates, but there seem to be quite a few resources available to find out.

http://www.its.caltech.edu/~atomic/snowcrystals/class/class-old.htm
yea found this too, that might explain sizes more in depth.. but figure since you are the academic i'd let you figure it all out :) :rolleyes:


 

JRBids

Senior Member.
I've noticed a lot of people never noticed snow is SPARKLY! They are saying it is pieces of metal.
 

NoParty

Senior Member.
Everything is sadly mysteriously sinister--for some folks--these days. :oops:

But since there's always metal in the soil---even if there were no modern pollution--wouldn't
there always be some small amount of metal in rainfall...and snow?



ETA...oh, I just remembered your location: take care out there in NY after that storm!
 
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Trailblazer

Moderator
Staff member
I can't believe people don't know snowflakes are ornate six-sided stars. Haven't they ever seen the Frozen movie poster? ;)

Seriously though, I often see snow crystals like this on my jacket and gloves while skiing, when it's very cold. Here in the UK what little snow we get tends to be the wet clumpy stuff, so you don't see them so often.
 

deirdre

Senior Member.
I can't believe people don't know snowflakes are ornate six-sided stars. Haven't they ever seen the Frozen movie poster? ;)

Seriously though, I often see snow crystals like this on my jacket and gloves while skiing, when it's very cold. Here in the UK what little snow we get tends to be the wet clumpy stuff, so you don't see them so often.
i think it's more the size (in OP pic for ex) that has people questioning. I've never noticed real live snowflakes looking like actual star snowflakes, but then i never zoomed into my knitted gloves to look at shapes.
 

NoParty

Senior Member.
They've never walked in a winter wonderland and seen the snow glistening?
According to "Winter Wonderland," that snow has been glistening in the lane since at least 1934...
so believers may need to push the "beginning of 'chemtrails'" up, yet again.

I've always know dendrites were a thing (though we don't see a lot of snow here in SoCal), I must say,
when I first saw the pic in the OP, I thought some of those "snowflakes" looked pretty fake...
especially the big sweet one right in the middle of the pic.It and the one at 7 o'clock just look a little too perfect.

I read on Stormfront once that that (wait...for...it...) the Jews were behind "chemtrails"...
so the perfect little six-sided stars in the OP sure aren't gonna help! :eek:
 

MikeG

Senior Member.
I read on Stormfront once that that (wait...for...it...) the Jews were behind "chemtrails"...
so the perfect little six-sided stars in the OP sure aren't gonna help! :eek:

Sad. But I wouldn't be surprised to see how various CT believers can articulate just what the "global power structure" means. It does give me an idea about the persistence of certain myths.
 

MikeG

Senior Member.
Everything is sadly mysteriously sinister--for some folks--these days. :oops:

But since there's always metal in the soil---even if there were no modern pollution--wouldn't
there always be some small amount of metal in rainfall...and snow?



ETA...oh, I just remembered your location: take care out there in NY after that storm!

One of the earliest discussions that I read on Metabunk talked about this topic.

https://www.metabunk.org/chemical-composition-of-rain-and-snow-aluminum-barium-etc.t135/#post-12992

I knew practically nothing about it, but it wasn't that hard to get up to speed.

contrailscience.com_skitch_Rutherford_20110521_134454.jpg
 

Trailblazer

Moderator
Staff member
i think it's more the size (in OP pic for ex) that has people questioning. I've never noticed real live snowflakes looking like actual star snowflakes, but then i never zoomed into my knitted gloves to look at shapes.
Pic of my ski jacket cuff. They'd melted/broken a little but you can see they were proper stars. Not as big, obviously, but I also saw plenty of the "fat" stars like the OP pic.

image.jpeg
 

Mick West

Administrator
Staff member
I was quite surprised when I first saw actual hexagonal star shaped snowflakes for the first time a few years ago. Like with Trailblazer it was on my ski jacket. I never realized they were visible to the naked eye before - I previously thought the hexagonal structures were only visible with magnification. But of course if you actually look up snowflake sizes, they are quite visible when conditions are right.

https://www.google.com/search?biw=1170&bih=1105&tbm=isch&sa=1&q=snowflake+on+my+jacket
 

Steve Funk

Senior Member.
This is a little off topic, but I just noticed the next to last line in the Canadian Journal Table, post #14, showing alkalinity values of 14 and higher. How is this possible? The scale normally used goes from 1 to 14, and I have never heard of values greater than 9 in the natural environment, unless it is industrial waste or volcanic.
 

CapnPegleg

Member
This is a little off topic, but I just noticed the next to last line in the Canadian Journal Table, post #14, showing alkalinity values of 14 and higher. How is this possible? The scale normally used goes from 1 to 14, and I have never heard of values greater than 9 in the natural environment, unless it is industrial waste or volcanic.

Alkalinity is a quantitative measurement, not simply pH:

https://en.wikipedia.org/wiki/Alkalinity
 

Mick West

Administrator
Staff member
This is a little off topic, but I just noticed the next to last line in the Canadian Journal Table, post #14, showing alkalinity values of 14 and higher. How is this possible? The scale normally used goes from 1 to 14, and I have never heard of values greater than 9 in the natural environment, unless it is industrial waste or volcanic.

It's ppm of CaCO3 here.
 

Mick West

Administrator
Staff member
Minor update, this came up again on Twitter, so I looked it up in more detail, as the images of dendrites did not look exactly like the furry stars in the OP.

It turns out this sub-type is rimed dendrites (or rimed plates, there's some overlap). The "rimed" part means it's coated in this fur of much smaller ice crystals. At the simplest level this can be quite slight:
IMGP3409.jpg
source: http://www.storyofsnow.com/blog6.php/more-snowflake-photographs-with-classifications

But can get fuzzier:


And fuzzier:


Source: http://www.atmos.washington.edu/~hakim/101/snowflakes/
 

JFDee

Senior Member.
Isn't it also possible that some of the more plate-shaped forms are created by partial melting and re-freezing, e.g. when the flakes have passed a warmer layer of air?
 

Mick West

Administrator
Staff member
Isn't it also possible that some of the more plate-shaped forms are created by partial melting and re-freezing, e.g. when the flakes have passed a warmer layer of air?

That would create clear surfaced blob-like flakes, not white furry flakes. Although it's possible a snowflake might melt, refreeze, and then be subject to additional deposition and/or riming.

Regular snowflakes form from water vapor being deposited directly on the ice surface (i.e. gas to solid phase transition).

Riming happens when there are supercooled microdroplets of liquid water (i.e. a liquid cloud or fog at <0°C/32°F. The microdroplets collide with the much bigger snowflake and instantly freeze, coating it with the "fur".


Source: https://miscellaneousmeanderings.wordpress.com/2016/01/11/on-snowflakes-snow/
 
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