Johann Huntera
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chattwjonathan.bsky.social
Johann Huntera
@chattwjonathan.bsky.social
2.4K followers 1.4K following 6.9K posts
Meteorologist & car safety systems. husband, father, Chattahooligan. He/him

Retweets are only endorsements if weather. You can like bad weather posts, it doesn't make you a bad person
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chattwjonathan.bsky.social
Conditions were down all day, but have risen back to G2

Now predicting G3 tonight, and G4 for tomorrow.
Latest observed space weather conditions. R - none S2 - moderate G2 - moderate Estimated Planetary K index by 3 hrs. Currently Kp = 6 (G2), but prior 3 hrs was below 5.
November 12, 2025 at 9:17 PM
chattwjonathan.bsky.social
If I'm reading yesterday's space wind forecast correctly:

I believe the forecast really showed that peak aurora yesterday with huge plasma density spike. From yesterday's model, tonight's has higher wind/less plasma.

However new model run should be on it's way by around noon/early afternoon.
Last nights aurora forecast. Plasma density spikes hugely on earth. Solar wind is higher, but not the peak. All that produced a SPECTACULAR aurora Tonight's aurora forecast. Plasma density is much lower. Solar wind spikes during the day, but lowers. Probably much less bright, but a fast moving aurora wherever it is..
November 12, 2025 at 3:01 PM
chattwjonathan.bsky.social
A Geomagnetic Storm Watch for Severe (G4) conditions is ongoing for tonight, which is what cause the aurora over most of the the U.S., Canada and Europe last night.

Strong (G3) conditions still continue at this hour.

www.swpc.noaa.gov/news/g3-stro...
Graphic from the space weather institute prediction center that says that G3 conditions are happening now after G4 was observed overnight. G4 conditions will continue to be possible overnight, and this is a warning by infrastructure management to mitigate possible impacts.
November 12, 2025 at 1:54 PM
chattwjonathan.bsky.social
From my workplace in Chattanooga: an aurora on Veterans Day.

Taken by a coworker
American flag at half mast to the left with the red pink aurora centered in the middle.
November 12, 2025 at 3:58 AM
chattwjonathan.bsky.social
There it is, faint aurora in Chattanooga!
Pink in the sky over the neighbor's house
November 12, 2025 at 2:28 AM
chattwjonathan.bsky.social
Aurora pictures from my mom in Athens Ohio.
Pink aurora in between clouds and behind some trees taken in Athens ohio Pink aurora in between clouds and behind some trees taken in Athens ohio. Trees are slightly blurry Pink aurora in between clouds and behind some trees taken in Athens ohio Pink aurora in between clouds and behind some trees taken in Athens ohio
November 12, 2025 at 1:42 AM
chattwjonathan.bsky.social
I don't see any aurora in Chattanooga tonight. Maybe the faintest hint at pink at the right side here but probably my imagination.
Pic of looking or at the night sky in the suburbs. No real discernible airport.
November 12, 2025 at 1:25 AM
chattwjonathan.bsky.social
Latest early school closings are in for Bledsoe and Rhea counties to our north:
East Tennessee map showing Bledsoe and Rhea counties highlighted.
November 10, 2025 at 3:29 PM
chattwjonathan.bsky.social
Good morning East Tennessee! Snow reported on the ground at Monterey on I-40 already.

Actual accumulation expected between about 4 and 10pm for those elevations, and much more than that for the Smokeys.

A dusting is going to be possible in Knoxville and Kingsport in that timeframe!

#TNwx
November 10, 2025 at 3:13 PM
chattwjonathan.bsky.social
Friendsgiving success, and leftovers to spare!
It's motherfucking broccoli salad! In a glass container! Being held by my hand! Taken in the kitchen with star lights on the window and the reflection catching me and the rest of the kitchen you normally don't see.
November 10, 2025 at 2:37 AM
chattwjonathan.bsky.social
A very beautiful morning
Yellow oak tree in the morning woods
November 7, 2025 at 5:06 PM
chattwjonathan.bsky.social
Trucking volumes down 17% YOY - Freightwaves CEO Craig Fuller
Craig fuller post from X on CNBC discussing Freight Volumes down 17% Year over Year. But don't worry it's mostly in long haul segments, like energy, auto, housing, and manufacturing. Are these important segments of the American market? Stay tuned!!!!
November 4, 2025 at 9:24 PM
chattwjonathan.bsky.social
My morning alarms get names when I wake up at a strange time of there is a specific task.

But often I don't change the names, I just enable them.
5:41am - chicken in oven 6:20am Laundry for Kidz 6:30am Tropical Helene 6:38am Arepa 6:51am Bunny Mask , this alert is enabled
November 3, 2025 at 5:15 AM
chattwjonathan.bsky.social
The control panel on my microwave has been on the fritz and I can only use a few numbers.

So after a couple of unsuccessful attempts to reset the clock for Standard Time, I have made it!
9:47 clock shows on microwave with a reflection of my hand
November 3, 2025 at 2:50 AM
chattwjonathan.bsky.social
Skeleton puking
My youngest child watching a puking skeleton. It's actually a fountain.
November 1, 2025 at 2:33 AM
chattwjonathan.bsky.social
Selfie of me as an uno wild card
November 1, 2025 at 2:18 AM
chattwjonathan.bsky.social
Full kitchen spread Cupcakes on the buffet Spooky lights and crows above the mantle
October 31, 2025 at 9:27 PM
chattwjonathan.bsky.social
Party crashers
Deer outside the bay window. Decorated with Halloween decorations with soup and fruit and other foods out
October 31, 2025 at 9:19 PM
chattwjonathan.bsky.social
Awww...yis....
Pumpkin seeds that have been baked in an oven tray. Tiny
October 31, 2025 at 12:05 AM
chattwjonathan.bsky.social
From local sub-Reddit - the rainbow was super bright in Red Bank.

Just look at the fainter colors coming out
A bright rainbow with fades of other colors that go beyond what we normally see. Or it's a lens effect - idk.
October 30, 2025 at 2:09 PM
chattwjonathan.bsky.social
It's been pouring rain all day in Chattanooga, but the standing wave we get from the mountains has produced enough sunshine for a faint double rainbow.

#CHAwx
Dark gray cloudy mess in moderate rainfall in a parking lot.And yet, there is a small piece of a rainbow, and an even lighter rainbow to its left.
October 29, 2025 at 9:48 PM
chattwjonathan.bsky.social
I've been thinking about this since retweeting - but also consider that the central mountains are 2000ft high.

The vertical compressing of the atmosphere will also reduce vorticity.

Upon approach, there will be vertical "stretching" which ramps short term vort.

Leaving it should "stretch" again
Terrible cross section diagram of vorticity stretching as a CoC moves over terrain. The atmosphere expands (or is forced) above...some over higher terrain, but the terrain grows higher. So first the vortex stretches and then it is compressed. Stretches = stronger vorticity = higher vmax. compressed = lesser vorticity and lower vmax
October 28, 2025 at 8:12 PM
chattwjonathan.bsky.social
For the curious about Buxton, NC homes being swept away

The outline of Buxton shown on the map at left is where the land used to be. Lots of deposits south of point Hattaras, and lots of ocean coming in to the east side.

Red is the homes being swept away.

Barrier Islands are moving!

#ncwx
October 28, 2025 at 6:10 PM
chattwjonathan.bsky.social
This was Treasure Beach Jamaica from 50 minutes ago to 20 minutes ago where inner bands are making their way in. So they still had power at that time.

Photo from about 20 minutes ago
Treasure beach webcam, with lots of low visibiltiy and those palms really starting to sway. Power lines in front.
October 28, 2025 at 1:57 PM
chattwjonathan.bsky.social
Flatbridge north of Portmore is underwater.

But...the locals say that this is pretty normal. Built to be submerged.
Screenshot from the bad place with pictures from the camera of Flatbridge before and currently. And a local reply that this is expected and happens.
October 28, 2025 at 1:48 PM