2018 Geomagnetic Storms

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Christopher K.
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Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

2018 Geomagnetic Storms

Post by Christopher K. » December 30th, 2017, 6:15 pm

Monday 1 January: G1

Happy New Year! We should expect, though, that the number of days with alerts like this will peter out as we get closer to the trough of solar minimum. There are no sunspots at this time--so far that makes 103 sunspotless days for 2017.

More information:
http://www.swpc.noaa.gov/news/g1-minor- ... ect-01-jan

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » February 14th, 2018, 4:13 pm

Thursday 15 February: G1
Friday 16 February: G1

This past Tuesday a C1-class solar flare sent material and energy almost directly toward Earth. This scant rate of activity will almost certainly remain for the next couple of years.

More information:
http://www.swpc.noaa.gov/news/g1-watch-15-february-2018

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » March 14th, 2018, 1:35 pm

Wednesday 14 March: G1
Thursday 15 March: G1

A co-rotating interaction region, in part, has led to these alerts from the SWPC. Contrary to the announcements on some media and on some internet sites, this is not going to be a "big" or "huge" solar storm. Those statements frustrate me immensely. G1 is the lowest of the alerts on the five-step scale!

More information:
https://www.swpc.noaa.gov/news/g1-watch ... 8-utc-days

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » March 21st, 2018, 12:05 pm

Thursday 22 March: G1
The descent into the trough continues. The current prediction is for the sunspot number to remain under 20.0 for the entirety of 2019...
https://www.swpc.noaa.gov/products/pred ... radio-flux

More information about the possible G1 activity tomorrow:
https://www.swpc.noaa.gov/news/g1-minor ... march-2018

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » April 20th, 2018, 6:38 pm

Friday 20 April: G1
Saturday 21 April: G1

There was G2-level activity earlier today. Many of these instances coincide with optical activity on the Sun (spots and plage). This may be good news for visitors to tomorrow's International Astronomy Day event. Solar viewing is planned for 3pm to 5pm.

More information:
https://www.swpc.noaa.gov/news/g1-minor ... 210300-utc
https://www.swpc.noaa.gov/news/update-g ... s-observed

About the 2018 International Astronomy Day:
http://hrpo.lsu.edu/programs/astronomy_day.html

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » May 5th, 2018, 6:12 pm

Saturday 5 May: G1
Sunday 6 May: G1
Monday 7 May: G1

G1 conditions were observed at 12:59pm CDT, hence today's alert. A negative polarity coronal hole high speed stream is prompting the alerts for tomorrow and Monday.

More information:
https://www.swpc.noaa.gov/news/g1-minor ... 5-may-2018
https://www.swpc.noaa.gov/news/g1-minor ... 7-may-2018

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
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Re: 2018 Geomagnetic Storms

Post by Christopher K. » May 30th, 2018, 6:25 pm

Friday 1 June: G1
Saturday 2 June: G1


The first two days of hurricane season arrive with G1 alerts! We should consider NOAA to now issue these fewer and farther between; the "bottom" of this solar cycle seems to have come sooner than predicted.

More information:
https://www.swpc.noaa.gov/news/g1-watch ... 2-utc-days

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » July 23rd, 2018, 8:56 am

Tuesday 24 July: G1

According to Tony Phillips, there have been ~118 days so far without sunspots! AR2716 didn't stay long. Since it's been nine years since the Sun has been this spotless, it's a sure thing that we're experiencing solar minimum.

More information:
https://www.swpc.noaa.gov/news/g1-minor ... ed-24-july

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » September 10th, 2018, 8:49 pm

Tuesday 11 September: G2
Wednesday 12 September: G1


This should be coupled with G1 activity that happened in the past twenty-four hours. We'll see if these alerts manifest into any disruptions. Sometimes they do, sometimes they don't.

More information:
https://www.swpc.noaa.gov/news/g2-moder ... ued-11-sep

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2018 Geomagnetic Storms

Post by Christopher K. » October 5th, 2018, 3:03 pm

Sunday 7 October: G2
The SWPC has not made a specific post about this prediction. In general, G2s can cause HR radio propagation at higher latitudes to have problems. If they last over certain periods they can cause transformer damage.

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