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Aurora Borealis Likely To Be Visible In Southern NY and PA Tonight
New submitter chromaexcursion writes "Several news source are reporting the likelihood of an impressive show of the Aurora Borealis visible as far south as Washington D.C. this evening. Accuweather explains: 'On the Kp index, the flare has been categorized at 6 to 8. This is a scale for measuring the intensity of a a geomagnetic storm. The 6 to 8 rating means that the effects of the radiation will have a greater reach. ... The radiation from such a flare may cause radio wave disturbances to electronics such as cell phones, GPS and radios, causing services to occasionally cut in and out. While traveling slower than was originally anticipated, the flare effects are moving towards Earth at 1000 km per second. ... The lights are currently estimated for 8 p.m. EDT Saturday arrival, with a possible deviation of up to seven hours.' Check the map; if you're in a fair-to-good zone, head out after sunset to see the show."
Just checked from the roof of a 22 story bulding, the view North is over East River, but nothing to be seen there. I guess New York is not famous for astronomy discoveres with all the smog and lights.
It's going to have to been pretty bright to compete with the skyglow present all along the Northeast metropolitan area. I haven't seen the Milky Way in years; the last time it was visible in my neighborhood was about ten years ago, during a region-wide blackout.
Unfortunately I get to stare at a whiteout blizzard instead... Too bad, last year had a wonderful night watching the northern lights with my wife from our hot tub (best way to do so!)
Within the last couple years, though, they're back with increasing frequency. I've been able to catch them at least twice each year for the last two years from Northern Wisconsin. And two years ago (I think), I had a friend that lives in Ohio that was able to clearly see them.
The best source for aurora visibility information is a forecast page run by the NOAA, but it's crushed under the load already, so I won't link it here. The second-best source is probably AccuWeather Astronomy's Facebook page or something like that. Anyway. Visibility hasn't even reached Maine yet.
The World Wide Web is dying. Soon, we shall have only the Internet.
This website will send you emails when Aurora are likely - it's based in Edmonton so it works best for northerly locations with the same magnetic latitude but when the storm hits you should see the chance for Auroras spike in Edmonton as well - and you can sign up for an email if you don't want to watch the site.
The first impact of the CME has hit and the boulder Kp is hovering around 3. Watch it here.and here. Here in southern Minnesota, Kp has to hit 6 before we see anything. 5 up on the Canadian border. Good luck spotting those unicorns!
Obi-Wan: "I felt a great disturbance in the Force, as if millions of voices suddenly cried out in terror and were sudden
This doesn't look like a joke, but something does seem off.
On the Kp index, the flare has been categorized at 6 to 8
Flares are not categorized with the Kp index. The Kp index is a scale for rating how large of a geomagnetic storm is going on. it is a non-linear scale of how much the Earth's magnetic field is deviating from typical value, as measured at several locations. Typically to get good auroras further south, you need both a high Kp index, which pushes the parts of the magnetic field lines bringing in solar wind and other stuff further away from the magnetic poles, and a source of particles to actually produce bright aurora. Solar storms do produce both, although there are situations where you can sometimes get one or the other.
Anyway, there several ways flares are rated, but the Kp index is not one of them. But it does factor into what into what to expect as far as aurora at more southernly locations. It is rather difficult to predict accurately from solar activity. The more accurate predictions are on short time scales using satellites in front of the Earth that can measure the solar magnetic field a few hours before variations hit us as carried by the solar wind. You can see the output of a model here, and so far it looks no where near as high as what Accuweather is suggesting. Although that model can be wrong at times, so it could still happen. For predictions and watches based on the space equivalent of weather men, you can find a chart of that here. While two days ago there was a watch made for a G2 level geomagnetic storm, which would be another way of describing a Kp=6 condition, the more recent updates and aurora circle maps show that current conditions are much short of that.
Hitchhiked a ride in Alaska; we were as outback as you can get
when the driver hit the brakes and pulled to the side of the road.
Scary a$$ stuff when you hitching a ride, but the driver saw the lights.
Pitch black, and not a sound could be heard as we were in the middle of nowhere.
We got out and watched them for awhile; they were like high speed clouds, rushing over us to swirl,
disappear, and repeat, no color these were just white, thus the cloud reference.
But the three of us can say we've heard the Northern Lights.
If you waited for it you could hear them, very subtle but very neat.
This was before public Internet and hard for others to accept, but now you can
find (google) many others who have heard them as well.
As someone who was fortunate enough to see the northern lights in the lower 48 last year, this is good advice. Keep your eye on the forecast; unless you're far up north, good opportunities don't come along too often. Find a dark spot in the country with a good view, and be patient since they do ebb and flow. Although it can vary based on the space weather, your best chance is usually around midnight, and you can get frequent updates here http://helios.swpc.noaa.gov/ovation/
It took me a couple tries to finally see them the first time. And even that night, for the longest time, until my eyes adjusted, I thought I was just seeing hazy clouds. Every once in a while it would light up with color overhead, but sadly those only lasted a few minutes. Most of the time it was pretty faint, but still an amazing experience, and yes a long exposure is a must to get a decent photo!
The sending of this message pretty much inconveniences everyone involved.
try turning off your screen and trying again...