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Radio Propagation

Solar-terrestrial indices

Indices from the U.S. NOAA Space Weather Prediction Center in Boulder Colorado, updated every three hours and published here in real time:

Solar-terrestrial indices for 25 October follow. Solar flux 74 and estimated planetary A-index 14. The estimated planetary K-index at 0300 UTC on 26 October was 2. No space weather storms were observed for the past 24 hours. Space weather for the next 24 hours is predicted to be minor. Geomagnetic storms reaching the G1 level are likely.

What does this mean for AM DXers?

Web resources

Current situation:
  Space weather (SWPC)
  Space weather dashboard (SWPC)
  DST Index
(Kyoto) (see also DST FAQ by AER)
  DCX index (Oulu University)
  K index
(SWPC)
  K index Norway (Tromsø)
  K index Germany (GFZ)
  K index Japan (NICT)
  K index Australia (BOM)
  Solar activity data (Solen.info)
  Space weather (spaceweather.com)
  Space weather (solarham.net)
  Space weather Finland (FMI)
  Space weather Canada (NRCan)
  GOES proton flux (SWPC)

Forecasts:
  3-day forecast (SWPC)
  27-day forecast (SWPC)
  45-day forecast (USAF)
  Aurora forecast for Europe (Tony)
  Aurora forecast for North America (Tony)

Long-term data (solar cycle history):
  Solar cycle progression (SWPC)
  Solar cycle sunspots (SIDC)

Forecast: A-Index & flux

45-DAY AP FORECAST 26Oct20 020 27Oct20 015 28Oct20 010 29Oct20 008 30Oct20 005 31Oct20 005 01Nov20 007 02Nov20 005 03Nov20 005 04Nov20 005 05Nov20 005 06Nov20 005 07Nov20 010 08Nov20 005 09Nov20 005 10Nov20 005 11Nov20 005 12Nov20 005 13Nov20 005 14Nov20 005 15Nov20 005 16Nov20 010 17Nov20 015 18Nov20 018 19Nov20 020 20Nov20 020 21Nov20 024 22Nov20 014 23Nov20 010 24Nov20 008 25Nov20 008 26Nov20 005 27Nov20 005 28Nov20 005 29Nov20 005 30Nov20 005 01Dec20 005 02Dec20 005 03Dec20 005 04Dec20 005 05Dec20 005 06Dec20 005 07Dec20 005 08Dec20 005 09Dec20 005 45-DAY F10.7 CM FLUX FORECAST 26Oct20 074 27Oct20 072 28Oct20 070 29Oct20 070 30Oct20 070 31Oct20 072 01Nov20 074 02Nov20 071 03Nov20 070 04Nov20 070 05Nov20 070 06Nov20 070 07Nov20 070 08Nov20 073 09Nov20 073 10Nov20 073 11Nov20 072 12Nov20 071 13Nov20 071 14Nov20 070 15Nov20 070 16Nov20 070 17Nov20 070 18Nov20 070 19Nov20 070 20Nov20 070 21Nov20 070 22Nov20 070 23Nov20 070 24Nov20 072 25Nov20 072 26Nov20 072 27Nov20 072 28Nov20 073 29Nov20 073 30Nov20 073 01Dec20 073 02Dec20 073 03Dec20 073 04Dec20 073 05Dec20 073 06Dec20 073 07Dec20 073 08Dec20 072 09Dec20 071 FORECASTER: TROST / FRIES 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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