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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 24 October follow. Solar flux 93 and estimated planetary A-index 4. The estimated planetary K-index at 1200 UTC on 25 October was 1. No space weather storms were observed for the past 24 hours. No space weather storms are predicted for the next 24 hours.

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 25Oct21 005 26Oct21 005 27Oct21 008 28Oct21 008 29Oct21 010 30Oct21 010 31Oct21 005 01Nov21 005 02Nov21 008 03Nov21 005 04Nov21 005 05Nov21 005 06Nov21 012 07Nov21 010 08Nov21 008 09Nov21 005 10Nov21 005 11Nov21 005 12Nov21 005 13Nov21 005 14Nov21 012 15Nov21 012 16Nov21 008 17Nov21 008 18Nov21 008 19Nov21 005 20Nov21 005 21Nov21 010 22Nov21 005 23Nov21 005 24Nov21 005 25Nov21 005 26Nov21 005 27Nov21 005 28Nov21 005 29Nov21 008 30Nov21 005 01Dec21 005 02Dec21 005 03Dec21 012 04Dec21 010 05Dec21 008 06Dec21 005 07Dec21 005 08Dec21 005 45-DAY F10.7 CM FLUX FORECAST 25Oct21 094 26Oct21 095 27Oct21 095 28Oct21 096 29Oct21 095 30Oct21 095 31Oct21 095 01Nov21 085 02Nov21 085 03Nov21 085 04Nov21 085 05Nov21 085 06Nov21 085 07Nov21 085 08Nov21 085 09Nov21 085 10Nov21 085 11Nov21 085 12Nov21 080 13Nov21 080 14Nov21 080 15Nov21 080 16Nov21 080 17Nov21 080 18Nov21 080 19Nov21 080 20Nov21 080 21Nov21 085 22Nov21 090 23Nov21 095 24Nov21 090 25Nov21 088 26Nov21 088 27Nov21 085 28Nov21 085 29Nov21 085 30Nov21 085 01Dec21 085 02Dec21 085 03Dec21 085 04Dec21 085 05Dec21 085 06Dec21 085 07Dec21 085 08Dec21 085 FORECASTER: CORWIN / EASTERLIN 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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