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Tornado fun facts:

• The US and Canada have more tornadic activity than any other place on Earth, averaging about 1100 tornadoes per year. Tornadoes also occur in places like Europe and Japan, but are rare compared to North American activity.

• Tornadoes are usually produced by supercell thunder storms, but smaller/weaker tornadoes can occur from non-supercell storms as well. These non-supercell tornadoes are commonly found in eastern Colorado (where this video was taken).

• Meteorologists have yet to isolate the tornado-causing factor. In other words, why does one supercell thunderstorm produce a tornado and another nearby storm does not?

• Meteorologists use the Enhanced Fujita Scale to categorize tornadoes based on factors such as wind speed and damage.

• The most dangerous aspect of a tornado is flying debris. This is why it's so important to stay away from windows if a tornado is near by.

I live in Colorado and I watched these storms develop that day, wishing I could leave my office to go chase them. It's hard to tell form this gif, but this might be an anti-cyclonic tornado! Does anyone have a video with better resolution?

the US gets far and away the most, but are in no way unique in having them.

It's surprisingly hard to find numbers for other countries. Quick research finds that South America is close behind the US in average tornado numbers though, which I found surprising.

Here's a map of where tornados occur

Wiki's page on Tornado Climatology has a few numbers, but outside of North America and Europe the numbers aren't very concrete.

It's a tornado

https://www.accuweather.com/en/severe-weather/close-encounter-with-deadly-tornado-caught-on-camera/956302

Tornados can happen outside the US. There was a tornado in Wuhan a few weeks ago in fact.

What are the ripples that spread out concentrically from the center? I assume they're gravity / pressure waves of some sort, but what causes them? They look fast! Would you see increased rain or wind for a couple of minutes as one of those passes over you?

Edit: Answering my own question - They are gravity waves, they do not affect weather, and they might be useful for remotely estimating wind speeds throughout the storm.

And that's one of the reasons why you don't stand under trees during a lightning storm. Another being that the trees can literally explode and send wood shrapnel and branches in the immediate area.

It's a tornado. From Accuweather:

>A large tornado in northeastern China Tuesday caused widespread damage and was blamed for one death and at least 16 injuries.

>According to Reuters, a potent storm moving through a suburb of the city of Harbin produced a tornado between 5:30 and 6 p.m., local time, impacting four local townships. Harbin is located in Heilongjiang Province.

>Residents taking shelter from the storm captured dramatic videos of the tornado swirling through the countryside and hurling debris and other objects in the air that were in its path as it tore through a small town.

>In addition to the fatality, 16 people were being treated for injuries with one person in serious condition, according to Reuters. In the wake of the storms, a total of 243 villagers were evacuated.

Source

From Reuters twitter

It'll drain your battery like a motherfucker, but here is an app where you can set the .mp4 version as your wallpaper.

Here's what it looks like in action

Animgif wallpaper app on play store for android

It's a browser based game. It drops you at a random spot anywhere in Google Street View, anywhere in the world, and the goal is to guess where you've been dropped. You drop a pin on a map where you think you are and it scores you based on how close your guess was.

It used to be very clutter and ad free several years ago. It's a bit more locked behind pay walls now, unfortunately.

But, I think you can still pay it here.

https://lifehacker.com/if-you-see-green-storm-clouds-prepare-for-the-worst-1824180901

It's worth the read, but tl;dr: Green clouds often indicate very strong storms, possibly including strong winds, torrential rain, hail, and/or tornados. The color is thought to be from the heavy moisture content of the clouds scattering the light, producing blue, combined with the yellow/red cast of a late afternoon/evening sun. Late day storms can be more powerful because they're driven by the heat absorbed by the air and ground during the hottest part of the day.

It's just a radar artifact. There's a doppler weather radar station at the center of that ring, and in the evenings the cooling atmosphere produces radar returns that look like a band of rain.

See: https://www.accuweather.com/en/weather-blogs/weathermatrix/anomalies-radar-1/12444

I use AnimGIF LWP2 on an Android phone running Cyanogenmod.

Works like a charm.

This is a great article: https://www.accuweather.com/en/weather-news/is-there-a-relation-between-fewer-atlantic-hurricanes-and-more-pacific-typhoons/345993

It’s not your question exactly, but more/fewer could also be related to strength.

It was reported in local news as a tornado. It went through eastern Belarus (OP's video is from Vitebsk) and parts of Russia. More videos from the same event, some really spectacular ones

I read this story in a post a few weeks ago. This gif makes me realize how crazy it really was. Flying through Hurricane Hugo

Edit : gif not image

Yeah you're right! But it's getting more intense this the first time it snows in Nafusa and western regions for three times in one winter, http://imgbox.com/7u6smrAe http://imgbox.com/Mh6qx8xF

Specially Yifrin.

Buddy, I hate to break it to you, but on 5th of December 2006, the day this photo was taken this photo was taken the high was 32 degrees and there wasn't a single day that month when the high was below 25.

It's called blitzortung. It's pretty awesome, all those lightning strikes displayed were from the past 60 seconds.

https://play.google.com/store/apps/details?id=org.blitzortung.lightning.tracker.app

For those not willing/able to throw $10 at an app, wX is an Android alternative. It's open source, and I believe the dev is on /r/weather frequently. Same radar data as Radarscope, but it doesn't have the tie-ins to the higher end paid services.