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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 21 May follow. Solar flux 167 and estimated planetary A-index 10. The estimated planetary K-index at 1800 UTC on 22 May was 2. 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 22May22 010 23May22 005 24May22 005 25May22 005 26May22 005 27May22 010 28May22 010 29May22 005 30May22 005 31May22 005 01Jun22 005 02Jun22 005 03Jun22 005 04Jun22 005 05Jun22 005 06Jun22 005 07Jun22 005 08Jun22 005 09Jun22 005 10Jun22 008 11Jun22 014 12Jun22 014 13Jun22 008 14Jun22 005 15Jun22 008 16Jun22 008 17Jun22 005 18Jun22 005 19Jun22 005 20Jun22 018 21Jun22 015 22Jun22 015 23Jun22 015 24Jun22 008 25Jun22 005 26Jun22 005 27Jun22 005 28Jun22 005 29Jun22 005 30Jun22 005 01Jul22 005 02Jul22 005 03Jul22 005 04Jul22 005 05Jul22 005 45-DAY F10.7 CM FLUX FORECAST 22May22 162 23May22 165 24May22 163 25May22 162 26May22 158 27May22 150 28May22 142 29May22 138 30May22 140 31May22 140 01Jun22 143 02Jun22 143 03Jun22 143 04Jun22 140 05Jun22 136 06Jun22 138 07Jun22 138 08Jun22 140 09Jun22 150 10Jun22 154 11Jun22 154 12Jun22 154 13Jun22 152 14Jun22 152 15Jun22 150 16Jun22 148 17Jun22 140 18Jun22 140 19Jun22 145 20Jun22 142 21Jun22 142 22Jun22 138 23Jun22 136 24Jun22 136 25Jun22 138 26Jun22 140 27Jun22 140 28Jun22 143 29Jun22 143 30Jun22 143 01Jul22 140 02Jul22 136 03Jul22 138 04Jul22 138 05Jul22 140 FORECASTER: DETHLEFSEN / TROST 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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