Aurora Alert for 6th and 7th Sept

[davenn]

A Geomagnetic Storm alert has been released following a CME ( Coronal Mass Ejection) caused by one or more of the flares over the last 24 hours
As with last time, those of you living in higher latitudes 45 deg North or South. Canada, nthrn USA, Alaska, nthrn Europe, Iceland, southern New Zealand and Tasmania - Australia. Keep an eye on the sky during your dark hours.

http://www.spaceweather.com/

A SOLAR STORM IS COMING: Yesterday during a flurry of M-class eruptions, sunspot AR2673 hurled a CME toward Earth. NOAA forecasters say the cloud is likely to arrive late on Sept. 6th, causing moderately-strong G2-class geomagnetic storms with isolated periods of strong G3-class storming on Sept. 6th and 7th. Click to play a movie of the incoming storm cloud recorded by the Solar and Heliospheric Observatory:

 

[davenn]

get you cameras ready people !
it's been a long time since we have seen a major to severe storm warning

SWS GEOMAGNETIC DISTURBANCE WARNING 17/42
ISSUED AT 0108UT/06 SEPTEMBER 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Expect an increase in geomagnetic activity to Active to Major
Storm conditions with possible cases of Severe Storm conditions
at higher latitudes. Active to Major Storm conditions for 7 September
due to continuing CME effects which will gradually decrease over
8 September.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED
DUE TO CORONAL MASS EJECTION
FROM 06-08 SEPTEMBER 2017
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
06 Sep: Active to Major Storm
07 Sep: Active to Major Storm
08 Sep: Active

 

[Stavros Kiri]

Looking forward to ... !

 

[Stavros Kiri]

+ I wonder what this (new fresh huge CME) will bring ... 3 days from now or so ... :
"Latest news

Wednesday, 6 September 2017 - 21:09 UTC
X9.3 earth-directed coronal mass ejection
More news"

 

[davenn]

GEOMAGNETIC STORMS POSSIBLE TONIGHT: The first of two CMEs en route to Earth has arrived. First contact occurred on Sept. 6th at approximately 23:45 UT. NOAA forecasters say that moderately-strong G2-class geomagnetic storms with isolated periods of even stronger G3-class storming are possible in the hours ahead as Earth moves through the CME's magnetized wake.

Solar wind
speed: 596.8 km/sec
density: 19.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0242 UT

 

[davenn]

+ I wonder what this (new fresh huge CME) will bring ... 3 days from now or so ... :

approx saturday
CME speed will be quite substantial ... probably 750 - 900 km/secD

 

[Stavros Kiri]

It looks like yesterday's (Sept. 10) last X-class flare [X8.2] (of group 2673 - now rotated over limb), although close to limb produced a halo CME (i.e. with earth directed component), due to arrive around 12 Sept. (i.e. tomorrow). Does this mean more aurora activity from 2673?

See also video and description: