Tag Archives: tasmania

August 2nd & 3rd Solar Storm Live Blog

Northern Lights Now – SWPC has posted a G2 storm watch for August 2nd and a G1 storm watch for August 3rd. NLN will keep a live blog of the storm as it unfolds here.

Update 8/4 2:30 UTC (10:30pm EST)

A quick recap: The big winners for aurora photography in this storm were the Northern states west of the Great Lakes and Canada, New Zealand and Tasmania. Denmark was also in the sweet spot at the very beginning of the storm when the initial CME arrived. There were a couple pictures of faint pillars in ME, NH and VT as well.

Solar wind never quite reached the high levels expected in the prediction. The helps explain why the storming started a little later than predicted also – if the wind is moving slower, it takes longer to travel from the Sun to Earth. In the end there were four periods of G1 storming recorded.

Thanks for following along for this storm!

This solar storm is done, in total 4 periods of G1, and 4 periods of KP=4. 24 hours total.
This solar storm is done, in total 4 periods of G1, and 4 periods of KP=4. 24 hours total.

Update 8/3 16:30 UTC (12:30pm EST)

The storm seem be dying down. Solar wind speeds have picked up, but they did not reach the predicted 600+ km/s. Here’s a create timelapse video from overnight from Robert Snache (@spirithands)

Update 8/3 11:00 UTC (7:00am EST)

So many wonderful pictures overnight. There were 3 periods of G1 recorded, and it appears there is a 4th happening now. There is an outside chance that the current period will reach G2. Here are a couple tweet with aurora pictures the we’ve seen overnight:

Back of cam:

Angel Brise finds some gems on webcams:

In Regina:

Neil Zeller:

Update 8/3 04:45 UTC (12:45am EST)

Starting about an hour ago, Bz dipped back south. Bt is still very strong, so this may be enough to produce some more pillars in the mid-latitudes. Aurora hunters will still probably need long exposures to get a good view. KP=5.33 (G1) in 20 minutes. Here’s a look at the boulder KP 3-hour averages so far – notice that storming didn’t technically reach G2 levels during the last substorm:

Two periods of storming so far in this solar storm
Two periods of storming so far in this solar storm

Update 8/2 23:00 UTC (7:00pm EST)

G2 storming is now predicted by the Wing-KP model. KP=6 shortly! This is almost exactly when the initial forecasts indicated we might see G2 storming. The strong solar wind hasn’t really picked up yet – wind speeds have only just touched 450 km/s.

Wing-KP shows KP=6 soon on August 2
Wing-KP shows KP=6 soon on August 2

Bz shifted to the north, so NLN is expecting this storm to be short lived. Good luck. Hopefully there will be more later tonight

Update 8/2 22:30 UTC (6:30pm EST)

First aurora picture of the night! This tweet shows a photo from Denmark by Twitter follower @ADphotography24

Update 8/2 21:45 UTC (5:45pm EST)

Around 8:00am UTC Bz made a decisive shift to the south. This should be good for aurora hunters and we expect to see some pictures coming in soon. We also expect the wing-KP models to reflect this aurora within the next 2-3 hrs.

Update 8/2 06:30 UPC (2:30am EST)

The first hints of the expected solar storm from the filament eruption appear to be arriving. Solar wind, density and Bt/Bz all reflected the shocks impact. The shock was weaker than expected, but also a little earlier than expected. We’re not really expecting any aurora yet, still plenty of hours ahead for a show.

Initial CME arrives around 04:00 UTC on August 2
Initial CME arrives around 04:00 UTC on August 2

Coronal Hole Delivers G1 and G2 Aurora on 2/16 and 2/17

Northern Lights Now – The expected high speed solar wind that prompted a G1 geomagnetic watch for February 17 arrived early, but delivered G1 and G2 storming conditions. The wind was faster moving than expected, clocking in around 670 km/s. The fast wind combined with periods of Bz south was enough to excite Earth’s geomagnetic fields. At the time of this blog post, there were 18 hours of continuous G1 and G2 – KP greater than 4.67 and 5.67 respectively – storming recorded, followed by another quick burst. Here is a graph showing the official readings from SWPC Boulder:

SWPC Boulder reports 7 periods, 21 hours, of G1 and G2 storming
SWPC Boulder reports 7 periods, 21 hours, of G1 and G2 storming

While this was a fairly strong aurora storm, there were not many aurora reports. Most of the prime viewing locations were clouded in. An large storm system across Iceland and the British Isles, general overcast across much of Scandinavia, and an East coast ice and snow storm prevented the viewers in the prime locations from experiencing this show. However, aurora hunters in some locations were able to capture the show:

New Zealand was treated to a brief period of lights just before sunrise as the storm started. Both Paul Le Comte and Ian Griffin got out of bed to snap pictures near Dunedin:

In Tasmania, @SussanSays saw the pinks and greens poke through what was forecast to be cloudy skies, and shared it in this Tweet

Eva Olsen captured greens with a hint of red/pink in Lapporten, Northern Sweeden:

Aurora hunter Darlene Tanner recorded the tail end of the storm from Alberta:

It’s possible storming could continue over the next 12-24 hours as disturbances travel along the fast wind stream, but decreases in density and wind speed indicate it’s likely this storm is now over.

Happy Hunting!