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[Article] Massive Solar Shockwave Heading Towards Earth

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#32 03-08-2010 10:01pm
storm2811

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OisinT wrote: »

Tomorrow they predict Geomagnetic A-index of 30 or greater.

Sorry,what does that mean?
Should it cause any problems?

I'm fairly useless with weather terms and the like.:o

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#33 03-08-2010 10:02pm
FreudianSlippers

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Stevek101 wrote: »

Can you explain what the change means? I'd like to know more!

The lines on the graph will decrease when the magnetosphere is compressed. Sudden and dramatic decreases show a sudden storm impact.

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#34 03-08-2010 10:15pm
FreudianSlippers

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storm2811 wrote: »

Sorry,what does that mean?
Should it cause any problems?

I'm fairly useless with weather terms and the like.:o

nah, shouldn't do much at all.

Basically the A-index is an adjusted measurement of the K-index magnetometer measurement... it's adjusted for the geographical location of the measuring station.
A minor storm is 30+ on the A-index, major storm is 50+ and severe storm is 100+

The storm predicted for us is outlined here in my post on page 2 (here: http://boards.ie/vbulletin/showpost.php?p=67261782&postcount=25 )

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#35 03-08-2010 10:24pm
maquiladora

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Janey mac

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#36 03-08-2010 10:27pm
FreudianSlippers

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#37 03-08-2010 10:50pm
maquiladora

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Kiruna magentogram :eek:

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#38 03-08-2010 10:52pm
FreudianSlippers

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auroral oval is SO close to us... just show me the lights!

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#39 03-08-2010 11:04pm
snaps

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shame its so cloudy!

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#40 03-08-2010 11:08pm
hellboy99

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Typical weather :rolleyes:, can't see a thing.

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#41 03-08-2010 11:18pm
maquiladora

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OisinT wrote: »

Closer....

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#42 03-08-2010 11:18pm
irishdub14

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What should we expect to see if anything does happen?

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#43 03-08-2010 11:24pm
FreudianSlippers

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irishdub14 wrote: »

What should we expect to see if anything does happen?

clouds unfortunately.

Without clouds?

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#44 03-08-2010 11:25pm
[Deleted User]
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Solar Tsunami. As above, so below.:eek:
Just kidding , I have no idea what would happen other than satelite problems possily.

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#45 03-08-2010 11:27pm
FreudianSlippers

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Here are some photos from 2005, the last aurora seen in Ireland (not my pictures)

Not great quality due to clouds and light pollution.

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#46 03-08-2010 11:29pm
FreudianSlippers

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ALERT: Geomagnetic K-index of 5
Threshold Reached: 2010 Aug 03 2208 UTC

Now officially a G1 geomagnetic storm. Still shouldn't pose any problems

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#47 03-08-2010 11:30pm
maquiladora

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ALERT: Geomagnetic K-index of 5
Threshold Reached: 2010 Aug 03 2208 UTC
Synoptic Period: 2100-2400 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor

As was predicted we have a minor G1 storm currently.

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#48 03-08-2010 11:37pm
maquiladora

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Activity is forecast to increase to active to minor storm levels with a chance for major storm levels on day 2 (05 August) due to the arrival of the halo-CME observed on 01 August (associated with a large filament disappearance).

http://www.swpc.noaa.gov/forecast.html

:pac:

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#49 03-08-2010 11:42pm
FreudianSlippers

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What do they consider "major", G3? That's Kp 7, so we could definitely see auroras here on the 5th if that is the case

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#50 03-08-2010 11:46pm
maquiladora

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OisinT wrote: »

What do they consider "major", G3? That's Kp 7, so we could definitely see auroras here on the 5th if that is the case

I guess G3 and above yeah.

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#51 03-08-2010 11:50pm
hellboy99

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Just got a quick glimpse of the lights during a break in the clouds just now

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#52 03-08-2010 11:52pm
starbuck72

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hellboy99 wrote: »

Just got a quick glimpse of the lights during a break in the clouds just now

you see much???

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#53 03-08-2010 11:54pm
hellboy99

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starbuck72 wrote: »

you see much???

Just a bit, faith blue / green, nice to see it though.

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#54 04-08-2010 12:56am
Iancar29

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Ahhh deck off clouds!!!!!!!!!!
JUST ThIS ONCE!!!.....

...please?

Setting my alarm for 4 to see if the clouds hav fecked off. Hopefully they will hav!

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#55 04-08-2010 1:21am
FreudianSlippers

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Iancar29 wrote: »

Ahhh deck off clouds!!!!!!!!!!
JUST ThIS ONCE!!!.....

...please?

Setting my alarm for 4 to see if the clouds hav fecked off. Hopefully they will hav!

Might have a better chance tomorrow night when the storm gets stronger

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#56 04-08-2010 1:23am
Blackdragon

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Nothing but clouds in Cork city :mad:

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#57 04-08-2010 1:58am
thelastshadow

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Spent 3 hours in the phoenix park in torrential rain hoping for a glimpse, but the clouds never broke. Any chance they'll still be around tomorrow?

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#58 04-08-2010 2:38am
old_aussie

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Is 2012 going to come early?

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#59 04-08-2010 3:31am
maquiladora

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WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2010 Aug 04 0045 UTC
Valid To: 2010 Aug 04 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

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#60 04-08-2010 3:33am
FreudianSlippers

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maquiladora wrote: »

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2010 Aug 04 0045 UTC
Valid To: 2010 Aug 04 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

G2 (Kp=6)

Power systems: high-latitude power systems may experience voltage alarms, long-duration storms may cause transformer damage.

Spacecraft operations: corrective actions to orientation may be required by ground control; possible changes in drag affect orbit predictions.

Other systems: HF radio propagation can fade at higher latitudes, and aurora has been seen as low as New York and Idaho (typically 55° geomagnetic lat.)**.

We are at 53° approximately, so with the predicted increase in the storm I'd say we should get a nice light show tomorrow evening once the clouds give us a break!

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#61 04-08-2010 4:16am
storm2811

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maquiladora wrote: »

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2010 Aug 04 0045 UTC
Valid To: 2010 Aug 04 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Is it just getting worse?
How long do these usually last or is there any way of knowing?

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