Levi Johnson

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Levi Johnson

Levi Johnson

@levikj

Douglas DC6 Flight Engineer

Fairbanks, AK Katılım Ocak 2013
346 Takip Edilen635 Takipçiler
Judith Stone
Judith Stone@JudithSStone·
The aurora in Paxson, Alaska was a STEVE (which stands for Strong Thermal Emission Velocity Enhancement); a rare atmospheric optical phenomenon that appears as a narrow ribbon or streak of light in the night sky, typically glowing in purple, mauve, white, or sometimes with green hues or edges. It often looks like a glowing picket fence or arc, as appears in the photo above, and it's frequently seen alongside classic auroras like the northern lights (aurora borealis) or southern lights (aurora australis), but in an equatorial, or horizontal direction. - A STEVE results from a narrow ribbon of extremely hot plasma (ionized gas) flowing rapidly in the upper atmosphere (around 450 km altitude). STEVE is not technically an aurora but an aurora-like or "protoplasmic" glow—distinct yet related to auroral activity. - This plasma ribbon is typically about 25 km wide, reaches temperatures of around 3,000 °C (5,430 °F), and moves at speeds of about 6 km/s (much faster than surrounding air). - The light comes from thermal emission due to this heating and fast ion flows (often linked to a phenomenon called subauroral ion drift or SAID), rather than direct particle precipitation like in regular auroras.
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Open Source Intel
Open Source Intel@Osint613·
Stunning footage captures March 14 aurora substorm in Paxson, Alaska, as green plasma arcs surge over 1 km/s during a massive geomagnetic storm. @vincent_ledvina
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Levi Johnson
Levi Johnson@levikj·
@CuriousVaultX @mars_stu @forallcurious Also the orientation of the Aurora is wrong. In the "video" the stars are rotating around a central point around 40° above the horizon which means it's around the latitude of Iowa and Nebraska. For one the scenery is wrong and 2 esp at that low of latitude the Aurora is east wst
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CuriousVault
CuriousVault@CuriousVaultX·
@mars_stu @forallcurious Looks unreal because your eyes expect green. Cameras don’t. White auroras are a saturation artifact, not a Photoshop one.
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All day Astronomy
All day Astronomy@forallcurious·
🚨: Rare display of beautiful white auroras lighting up the night over Alaska.
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Levi Johnson
Levi Johnson@levikj·
@metfan722 @MaxVelocityWX Just look outside once it gets dark and stay outside, no timeframe. The CME just impacted so things are going nuts
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Max Velocity
Max Velocity@MaxVelocityWX·
MAJOR GEOMAGNETIC STORM is coming TONIGHT! 😲 Tonight has the potential to be a big show of Northern Lights. A G4 Geomagnetic storm is possible, which is the 2nd strongest storm possible. Northern Lights could be visible as far south as FLORIDA! Get those cameras ready!
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Anthony Cerullo
Anthony Cerullo@anthonycerullo·
Louisville, KY plane crash was an outbound UPS flight to Honolulu. Looks like the left wing/engine was on fire during the takeoff roll.
Anthony Cerullo tweet media
Anthony Cerullo tweet media
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Panos Panay
Panos Panay@panos_panay·
Gigabit+ speeds from low Earth orbit. First satellites for @ProjectKuiper are at their assigned 630km altitude, and the team just shared this speed test using our enterprise-grade customer terminal. So pumped to see this and looking forward to bringing this level of performance to our customers.
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Liv Boeree
Liv Boeree@Liv_Boeree·
What is this new trend of flying with the window shades down on DAYTIME flights? You’ve got sweeping views of the most intricate planet known to man and you’d rather sit in a dimly LED-lit tube?! No wonder people are depressed & dysregulated.
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Levi Johnson retweetledi
NWS Grand Forks
NWS Grand Forks@NWSGrandForks·
There is no threat for tsunami impacts in North Dakota. If you are in a coastal area under threat however check tsunami.gov for up to date information and with local officials for any evacuation orders
squeeks ☻@KingSqueeksIII

@NWSGrandForks where is the tsunami warning for Fargo, apparently people are searching for this

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Levi Johnson
Levi Johnson@levikj·
Maybe a wall cloud near callaway, NE
Levi Johnson tweet media
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Flightradar24
Flightradar24@flightradar24·
Can anyone explain this?
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Levi Johnson
Levi Johnson@levikj·
One of the most insane photos I took of the damage from the North Dakota derecho. It shows silos ripped completely off their foundation and thrown almost a mile across a corn field @NWSGrandForks @ReedTimmerUSA (47.2539508, -97.2171881) for the coordinates of the silos #NDWX
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NWS Aberdeen
NWS Aberdeen@NWSAberdeen·
@levikj @ReedTimmerUSA Hello, we are reaching out to ask if we could get permission to use some of the aerial photos you took of the tornado paths in our event summary page on our website with credit you? Also, thank you so much for tagging us in the photos!
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Levi Johnson
Levi Johnson@levikj·
Just saw a huge meteor over Wheaton, MN Looking west 10:06 AM
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