[MRCA] Geomagnetic storm warning

W2HX w2hx at w2hx.com
Thu May 13 12:48:02 EDT 2021


I think this was in yesterday but I thought it might interest folks if they experienced worse than normal conditions.

-----Original Message-----
From: Ken Krausgill <ken.krausgill at verizon.net> 
Sent: Thursday, May 13, 2021 12:46 PM
To: W2HX <w2hx at w2hx.com>; mrca at mailman.qth.net
Subject: RE: Geomagnetic storm warning

Thanks Eugene.

Ken
KD2GFM

-----Original Message-----
From: mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net] On Behalf Of W2HX
Sent: Thursday, May 13, 2021 12:34 PM
To: mrca at mailman.qth.net
Subject: [MRCA] FW: {Collins} Geomagnetic storm warning

FYI

-----Original Message-----
From: Collins <collins-bounces+w2hx=w2hx.com at listserve.com> On Behalf Of Ronald Johnson via Collins
Sent: Wednesday, May 12, 2021 3:43 PM
To: collins at listserve.com
Subject: {Collins} Geomagnetic storm warning

Geomagnetic storm warning

Space Weather Message Code: ALTK07
Serial Number: 116
Issue Time: 2021 May 12 1759 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2021 May 12 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation

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.

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