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No warnings at NOAA Space Weather Prediction Center.[1] No warnings on PJM grid dashboard. Probably not going to be a problem. [1] https://www.swpc.noaa.gov/

No warnings at NOAA Space Weather Prediction Center.[1] No warnings on PJM grid dashboard. Probably not going to be a problem. [1] https://www.swpc.noaa.gov/ https://www.swpc.noaa.gov/

cryptoegorophy 2y ago
Any new auroras?
dgacmu 2y ago
Perhaps you checked a few minutes too soon? > SWPC Forecasters have issued G3 (Strong) Geomagnetic Storm Watches for 04-06 October due to a pair of coronal mass ejections that are anticipated to arrive over the course of the next three UTC days. Stay tuned for updates as we monitor this activity!
- chgs 2y ago
  Is a UTC day a different length to a common solar day? At this level of pre soon leap seconds and even sidereal day difference makes no difference
  - buescher 2y ago
    Yes, but they probably mean "the next 72 hours from right now given in UTC".
    - chgs 2y ago
      Which would be the same as the next 72 hours in PST
    - Gare 2y ago
      Or maybe they mean "day" as starting from UTC midnight.
      - sevensor 2y ago
        Maybe they’re contrasting with sidereal days?
        chgs 2y ago
        That was my initial thought, but that’s a difference of 10 mins over 3 days, and that’s orders of magnitudes more precise than should be used.
      - buescher 2y ago
        I'd guess that's actually more likely. Interesting bit of jargon.