G3 geomagnetic storm

Thursday, 4 November 2021 20:26 UTC

The Bz component of the interplanetary magnetic field dipped quickly down to as low as -15nT during the impact which quickly sparked moderate G2 geomagnetic storm conditions making aurora visible all over Sweden, Scotland and even The Netherlands to just name a couple of places.

The Bz did turn mostly northward around midnight UTC, but later in the night and morning the Bz really dipped southward for a couple of hours going as low as -18nT. This combined with the high solar wind speed caused strong G3 geomagnetic storm conditions (the second G3 storm of this Solar Cycle) and sparked truly amazing aurora at many locations in Canada and the northern USA. Our friends down under in New Zealand also got a great show!

The Bz has rotated firmly northward now which is really hampering further storm conditions. The show is over... for now... as there might be a new interesting sunspot region just behind the east limb!

Below we have a couple of tweets made by people all over the world, showing how they witnessed this amazing solar storm! Enjoy!

Header image: Mark Duffy

Aurora corona nov 4, 2021 near Wainwright Alberta #aurora #AuroraBorealis #NorthernLights #solarstorm @TamithaSkov @CanGeo pic.twitter.com/CAqVt0xIjq

— Sheri (@prairiewinds77) November 4, 2021

Aurora australis at 44° south (New Zealand) Straight from camera right now @TamithaSkov pic.twitter.com/mG2wYbQ3CR

— Jonny Harrison (@JonnyHarrisonNZ) November 4, 2021

Nov. 3 Butternut, Wisconsin 10:14 pm CST #aurora @TamithaSkov @TweetAurora @_SpaceWeather_ @AuroraNotify @Aurora_Alerts @WSAW @WAOW pic.twitter.com/LPuYglhA3p

— Corinne (@AuroraNorthWI) November 4, 2021

Managed to set my panning to go in the wrong direction. But it didn’t really matter as there were Arqsarniit everywhere. pic.twitter.com/7d0594HvNW

— Clare Kines (@NunavutBirder) November 4, 2021

BOOGIE CURTAINS!!

My time lapse of last night's INSANE aurora display!@Vincent_Ledvina @levikj @TweetAurora @AuroraJAnderson @TamithaSkov @erikapal @artsy_sun @SNHWx @spacewxwatch @SpaceWxMike @spaceyliz @dmaluk1 @LachDonna pic.twitter.com/a5cQljxPOw

— Dakota (@ItsAstroKota) November 4, 2021

@Talpaweer @weeronline @Weerplaza @BuienRadarNL #Noorderlicht #poollicht #Terschelling @poollichtbe vannacht !! pic.twitter.com/ThE6tFRjzG

— Sytse Schoustra (@SytseSchoustra) November 3, 2021

"The Phoenix"
Last night was incredible.
Nr Edmonton, AB. pic.twitter.com/o5KfohX3sD

— Mark Jinks (@markjinksphoto) November 4, 2021

Looking straight up at the Aurora!

Incredible corona last night as the #NorthernLights danced. pic.twitter.com/QVd9aZfhaL

— Kyle Brittain (@KyleTWN) November 4, 2021

The moment the Aurora exploded to life at Loch Fleet, Sutherland. From a green arc, to this in 10 sec pic.twitter.com/BzmaLXDyxV

— Cogie's Aurora's (@cogie_s) November 4, 2021

An incredible display of the Northern Lights last night from Sycamore Gap. @FujifilmX_UK @nationaltrust @StormHour @Schafernaker @TamithaSkov @_SpaceWeather_ @Lauratobin1 @bbcweather @itvweather @Aurora_Alerts @AP pic.twitter.com/NRqts5fADo

— Steven Lomas (@StevenLomas10) November 4, 2021

OMG!!! The RED Aurora moments ago were incredible near Alix Alberta!! #Aurora #TeamTanner @treetanner @TamithaSkov @chunder10 @NightLights_AM @weathernetwork @scottrockphoto @JimCantore @MatthewCappucci @mikesobel @PeakToSailPhoto @RedDeerAdvocate @CTVJoelle @Sunny94FM @KyleTWN pic.twitter.com/8I2spFUqB3

— Dar Tanner (@dartanner) November 4, 2021