Hello, As IT tech types, working with some very expensive and sensitive equipment, thought you may be interested in this solar storm warning I just got (below). I've been on that US Gov subscription list for a few months now, and this is the FIRST warning I've ever received. Please let me know if I shouldn't do this sort of thing on the list. Regards, Carl Turney Melbourne -------- Original Message -------- Subject: WARNING: Geomagnetic K-index of 7 or greater (G3 or Greater) Date: 24 Apr 2012 02:16:23 +0000 From: SWPC Product Subscription Service <SWPC.Products@noaa.gov> To: carl Space Weather Message Code: WARK07 Serial Number: 37 Issue Time: 2012 Apr 24 0204 UTC WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2012 Apr 24 0205 UTC Valid To: 2012 Apr 24 0600 UTC Warning Condition: Onset NOAA Scale: G3 or greater - Strong to Extreme NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/NOAAscales Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude. Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices. Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur. Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur. Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon. ------------------------------------------------------------------------ Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. <https://pss.swpc.noaa.gov> Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help. <mailto:pss.help@noaa.gov>