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Title: G4 Level Solar Activity Post by: Todd, KA1KAQ on March 17, 2015, 10:34:53 AM Nick! Heath! Jarrod! There's a fire in the barn!!!
Space Weather Message Code: ALTK08 Serial Number: 18 Issue Time: 2015 Mar 17 1401 UTC ALERT: Geomagnetic K-index of 8 Threshold Reached: 2015 Mar 17 1358 UTC Synoptic Period: 1200-1500 UTC Active Warning: Yes NOAA Scale: G4 - Severe NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude. Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify. Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur. Navigation - Satellite navigation (GPS) degraded or inoperable for hours. Radio - HF (high frequency) radio propagation sporadic or blacked out. Aurora - Aurora may be seen as low as Alabama and northern California. Title: Re: G4 Level Solar Activity Post by: KB2WIG on March 17, 2015, 11:43:41 AM Not even in re-runs!! FWIW, rain here, so no visual Auroral activity. klc Title: Re: G4 Level Solar Activity Post by: n1exi on March 17, 2015, 01:22:02 PM maybe i will wear a hat lined with tin foil and sunglasses - think that would help me survive?
greg - n1exi Title: Re: G4 Level Solar Activity Post by: Pete, WA2CWA on March 17, 2015, 01:43:59 PM http://www.swpc.noaa.gov/products/30-minute-aurora-forecast
Title: Re: G4 Level Solar Activity Post by: KL7OF on March 17, 2015, 03:46:35 PM That little sun-spit seems to have ruined propagation..WWV on 5 10 and 15 megs is not heard here in the west.....Look for aurora
Title: Re: G4 Level Solar Activity Post by: N8SDR on March 17, 2015, 04:25:53 PM Might be a decent evening for some 6M activity
Title: Re: G4 Level Solar Activity Post by: Pete, WA2CWA on March 17, 2015, 04:40:28 PM Might be a decent evening for some 6M activity It's happening as I type if you like bouncing signals off the aurora. Title: Re: G4 Level Solar Activity Post by: n1exi on March 17, 2015, 05:07:15 PM the only bounce i get is when i fall on the asphalt - see red on my wrists and blue in my eyes! - home grown northern lights - not as pretty and pretty painfull - miss new hampshire - would see the sights back in the eightys - took my daughter out one night - little more than two years and said "remember this" - she never forgot - and neither have i
greg - n1exi Title: Re: G4 Level Solar Activity Post by: KL7OF on March 17, 2015, 08:28:49 PM worked a couple stations on 10 SSB AURORA...Ve7ka Portable and N7jo...flutter was intense....Beam to the NNW....
just like the old days... Now hearing N5AEA on 40 metros with fading ...not flutter Title: Re: G4 Level Solar Activity Post by: KL7OF on March 18, 2015, 09:46:30 AM Made a few more contacts via Aurora...10 meters...I wish I had something going on 6 meters.. The sun is giving us a St Pattys Day Gift........Any reports on Auroral contacts???
Title: Re: G4 Level Solar Activity Post by: Pete, WA2CWA on March 18, 2015, 02:52:03 PM Did manage several contacts on 6 meter SSB. Even tried 6 meter AM but the AM stuff was only running low power and the antenna was only a temporary 3 element beam. The 7 element long boom yagi won't be back up till later in the Spring. All the rest of the contacts and on the other VHF/UHF bands were done on CW.
Title: Re: G4 Level Solar Activity Post by: KL7OF on March 18, 2015, 04:37:33 PM The blackout part of the CME seems to be over...South America is boiling in on 10 meters to the West Coast .
Thanks for the report Pete... 73 Steve Title: Re: G4 Level Solar Activity Post by: Steve - K4HX on March 21, 2015, 06:49:14 PM A great time lapse show.
https://vimeo.com/122280983 Title: Re: G4 Level Solar Activity Post by: W3GMS on March 22, 2015, 01:39:53 PM A great time lapse show. https://vimeo.com/122280983 Absolutely gorgeous! Joe - GMS Title: Re: G4 Level Solar Activity Post by: AJ1G on March 22, 2015, 06:20:22 PM At 1000Z yesterday morning on the Saturday morning Old Military Radio Net all stations way to the south and west were if anything stronger than usual. However, NCS KD3HT Steve in the Poconos of PA and all New England stations to my north were uncopyable. An aftershock of the big mag storm was going on with a K index of
4 to 5. At 1050 within a minute or so, KW1Is signal jumped from barely audible to 20 over 9. Checked our local sunrise and it happened about 2 minutes before Dale's signal jumped up. We have observed this "sunrise effect" for many years when the band is otherwise very long during the first part of the net. I assume the cause has something to do with sunlight affecting the D layer. There is an interesting posting on Spaceweather.com re the effect of the recent solar eclipse at high latitudes on VLF station signal levels received in notherern Europe. A signal from Iceland was enhanced, and levels from the Navy station down in Puerto Rico dropped way down during the eclipse. Title: Re: G4 Level Solar Activity Post by: Pete, WA2CWA on March 22, 2015, 08:29:33 PM The grey line segment of time at sunrise and sunset can usually provide a segment of enhanced propagation. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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