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Posted by WorldPeas 1 day ago

Level S4 solar radiation event(www.swpc.noaa.gov)
https://www.swpc.noaa.gov/products/goes-proton-flux
578 points | 188 commentspage 2
lukan 15 hours ago|
I missed it (seeing the Aurora) .. are there any reliable alerts for this sort of event, that do not alert me about anything else, but really only such big events?
albertzeyer 6 hours ago||
I had registered for alerts on https://aurorasaurus.org/. But that alert was sent way too late for me (strongest lights were yesterday around 10-11 PM, and the notification was sent 2 AM today). But I was very lucky and just noticed the lights by accident on my way home.
MrGilbert 12 hours ago|||
One caveat is, that these events cannot be forecasted in the same way as weather on earth can. You usually only have a lead time of 15 - 45 minutes. See also https://www.swpc.noaa.gov/content/aurora-tutorial
lukan 11 hours ago||
Sure. But if I am awake, those 15 minutes are enough to get dressed and go outside.

Yesterday I just would have had to walk to the balkony to see it, but I was busy with some frustrating coding problem instead ..

Levitating 9 hours ago||
same, I was awake for the whole night but completely missed it
vachina 10 hours ago|||
On iOS there’s an app literally called “Aurora”.

It will notify you when you’re in an area with a high Kp (or above a Kp you specify).

cvt7bm 14 hours ago||
https://www.swpc.noaa.gov/content/subscription-services
lukan 14 hours ago||
Thanks, that seems exactly what I was looking for. (Now I have to figure out the best way to get a alert to my phone if my inbox receives such a mail, probably easiest to use a a mailadress just for this case and then treat this emailadress different)
markus_zhang 8 hours ago||
Well I didn't see anything last night (In Eastern Canada), probably because there was too much light in the suburb. Now the aurora "area" turns back to Europe and Asia, I hope you guys enjoy it!

Judging by this picture: https://services.swpc.noaa.gov/images/animations/ovation/nor... , I think in a few hours the whole North Europe can see it very clearly.

T0Bi 7 hours ago|
Your URL is broken (for me)
drmpeg 21 hours ago||
Although everyone is interested in visible aurora, the proton flux is also really impressive. It peaked at 37,000 pfu at 1910Z. The highest ever recorded was 43,500 pfu in March 1991.
dschuessler 1 day ago||
This page looks like an accessibility nightmare. The entire warning text is an image. There is no transcription present for screen reader users. I did not expect this from a government website.
cwillu 22 hours ago||
https://www.swpc.noaa.gov/communities/aurora-dashboard-exper... is better
delusional 1 day ago|||
Looking at the aspect ratio (and working in a bank) it's worse than that. That's a powerpoint slide.
delfinom 23 hours ago||
Not like someone with poor vision is going to be able to see the aurora borealis that results

/s

rediguanayum 23 hours ago||
Moon should be good too to see Aurora tonight: waxing crescent 1% https://www.moongiant.com/phase/today/
jokull 11 hours ago||
As seen from my apartment in Reykjavík Iceland: https://ss.solberg.is/89N0qS7T
smcnally 9 hours ago|
That’s beautiful. But you get aurora even sans G4, true? Was this more intense and spectacular?
jokull 34 minutes ago||
Yes - not seen it this red though.
bashtoni 23 hours ago||
Australian Bureau of Meteorology advisory for visible aurora: https://www.sws.bom.gov.au/Aurora
jp0d 23 hours ago||
Are there any resources to track Aurora sightings or predicted sightings?
lakid 19 hours ago|||
https://aurora-alerts.uk/ Ignore the UK TLD, this tracks global sightings
stubish 22 hours ago|||
At the bottom right of that page is a subscribe link, with a number of different alerts and lists to subscribe to.
aussieguy1234 21 hours ago|||
Worth noting that Kp, which many talk about in discussions online, is more or less useless for anyone in Australia or the southern hemisphere. Lots of beginner Aurora chasers here get tripped up by that.

What is useful is KAus and the G index, KAus is shown on this page, so thats what i'll be tracking.

hahahahhaah 23 hours ago||
Is that tonight or last night?
bashtoni 22 hours ago||
It was only issued this morning Australian time, so I presume it's for tonight.
Kunsang 21 hours ago||
Discussion of the event https://community.spaceweatherlive.com/topic/4210-x19-cme/
fnands 13 hours ago||
Damn, I love finding some hyper-specific forums like this one.

Sooo much jargon.

neogodless 20 hours ago||
This is definitely not a language I speak!

Flux and bZ!

Kunsang 21 minutes ago|||
I understand maybe half of this, but I followed the discussion and knew when it was about time to go outside.
imp0cat 10 hours ago|||
Surely you must be familiar with the flux capacitor? ;)
mrbluecoat 7 hours ago||
Verizon will probably retroactively blame their outage on it.
PlatoIsADisease 23 hours ago|
Years ago I was concerned about this and made a plan with my wife for what to do if she was at work.

But now we have a bunch of kids in different schools and haven't updated our plan.

Does anyone have a plan for what happens if we have a really bad event?

hnuser123456 23 hours ago||
A really bad event would be that long-distance transmission lines act like antennas and pick up millions of volts and blow up all the transformers.

I don't know how much you can plan for that other than "if it happens, try to get home", and then all the usual prepper stuff.

myself248 22 hours ago|||
Pray for clear skies and go out and watch the beautiful aurora, silly!

Depending on the kids' ages, you can teach them quite a lot about the Earth's magnetic field and why the aurora concentrates at the poles, how the high-energy particles light up the sky (it's a lot like a neon light), and how the atmosphere shields us from any danger despite the spectacular show.

rootusrootus 22 hours ago|||
For a really bad event that managed to blow a lot of transformers (presumably due to grid operators not seeing it coming) ... well, take up farming.
internet_points 13 hours ago|||
Disconnect your telegraph batteries and run on aurora power only
esskay 13 hours ago|||
Feel a bit sensationalistic. It happens, it's not rare, and we've always got on with life perfectly fine.
Tepix 23 hours ago|||
Buy a bit of extra food and water.
y1n0 22 hours ago||
And toilet paper! Rolls and rolls of toilet paper!
fuzzer371 23 hours ago|||
Keep a couple days water and food on hand, go up to the pub, have a pint, and wait for this all to blow over.
JoshTriplett 23 hours ago||
With how much modern cars rely on electronics, I would not try to drive during such an event.
whyleyc 22 hours ago|||
It’s ok - The Winchester is within walking distance.
jrgd 21 hours ago||
Omg i watched this yesterday!
lxgr 23 hours ago||||
Solar flares are only dangerous to very long conductors.
luxuryballs 22 hours ago||
so cancel the limo?
throwaway81523 21 hours ago||||
That's a safety feature. It prevents you from drinking and driving if you go to a pub during a solar flare. :)
jrgd 21 hours ago|||
No one would drive to the pub anyway. Better walking back home…
JoshTriplett 21 hours ago||
Valid. I think I have such an ingrained different set of assumptions (a pub being just another kind of place for food, and "going to" anything involving a form of transportation) that that didn't even occur to me.
swader999 23 hours ago||
First rule of fight club...
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