Solar Alert - wind speeds of 800 km/s expected

Discussion in 'Amateur Radio News' started by VE7DXW, Dec 8, 2020.

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  1. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    I posted the wrong graph....here is the correct one

    First storm was picked up by the RF-Seismograph from 19:00 UTC to 06:00 UTC on 80 m, on 40 m, and on 20 m from 23:00 UTC to 06:00UTC.
    Also mot the noise increase on 15 m between 03:00 UTC and 07:00 UTC.
    [​IMG]
     
  2. W5EBB

    W5EBB Ham Member QRZ Page

    https://www.swpc.noaa.gov/products/alerts-watches-and-warnings

    Space Weather Message Code: WATA50
    Serial Number: 64
    Issue Time: 2020 Dec 08 1506 UTC

    WATCH: Geomagnetic Storm Category G3 Predicted

    Highest Storm Level Predicted by Day:
    Dec 09: G1 (Minor) Dec 10: G3 (Strong) Dec 11: G2 (Moderate)

    THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

    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.
     
  3. NN6D

    NN6D Ham Member QRZ Page

    the only thing that matters is

    What is the potential impact on this weekend's 10 meter contest ??
     
    W0PV and AA4MB like this.
  4. AA4MB

    AA4MB XML Subscriber QRZ Page

    How fast are the 'normal' solar winds?
    How will this affect HF propagation?

    Some of the questions many of us have finally were addressed by respondents way down the line. Thanks.
     
  5. VA3FLN

    VA3FLN Ham Member QRZ Page

    Okay, I've unwrapped the tinfoil off of my head!

    That said, asides from a temporary HF blackout, what's the usual longer term effects of such an event. While a high solar flux level might be meaningless to radio propagation at the height of a solar storm, can we expect an elevated solar flux for the days following or could it just drop back to pre-storm levels as fast as it rose?
     
  6. WL7PM

    WL7PM Ham Member QRZ Page

    .....
    " 20 meters Alaska Pacific Net was wide open from Northern California to SouthCentral and Interior Alaska one hour ago, good signals, very low noise.
     
    VE7DXW likes this.
  7. N5PTV

    N5PTV Ham Member QRZ Page

    Unless my conversion is wrong, that's about 1.8 million mph. Imagine a spacecraft with solar sails, if it could handle it. I believe the record stands at 165K mph. Also, I wonder if there will be an earthquake as a result?

    73,
    Matt
     
  8. KA2FIR

    KA2FIR Ham Member QRZ Page

    Tune in to find out.
     
  9. KA2FIR

    KA2FIR Ham Member QRZ Page

  10. WL7PM

    WL7PM Ham Member QRZ Page

    Solar wind speed is 423 km/S
    75 meter NVIS testing shows signal path from Dillingham to Homer with 5 watts, SSB
     
    VE7DXW likes this.

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