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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 16 June follow. Solar flux 148 and estimated planetary A-index 10. The estimated planetary K-index at 1200 UTC on 17 June was 1.67. Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred. Space weather for the next 24 hours is predicted to be moderate. Radio blackouts reaching the R2 level are expected.

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 Australia (BOM)
  Solar activity data (Solen.info)
  Space weather (spaceweather.com)
  Space weather (solarham.net)
  Auroras and 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)
  Space weather forecast (Japan)

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

Forecast: A-Index & flux

45-DAY AP FORECAST 17Jun25 010 18Jun25 012 19Jun25 005 20Jun25 005 21Jun25 005 22Jun25 005 23Jun25 008 24Jun25 012 25Jun25 025 26Jun25 020 27Jun25 015 28Jun25 008 29Jun25 005 30Jun25 005 01Jul25 015 02Jul25 015 03Jul25 012 04Jul25 005 05Jul25 015 06Jul25 015 07Jul25 012 08Jul25 010 09Jul25 008 10Jul25 005 11Jul25 015 12Jul25 015 13Jul25 015 14Jul25 010 15Jul25 012 16Jul25 005 17Jul25 005 18Jul25 005 19Jul25 005 20Jul25 008 21Jul25 012 22Jul25 025 23Jul25 020 24Jul25 015 25Jul25 008 26Jul25 005 27Jul25 005 28Jul25 015 29Jul25 015 30Jul25 012 31Jul25 005 45-DAY F10.7 CM FLUX FORECAST 17Jun25 145 18Jun25 140 19Jun25 140 20Jun25 140 21Jun25 138 22Jun25 135 23Jun25 125 24Jun25 125 25Jun25 130 26Jun25 125 27Jun25 125 28Jun25 120 29Jun25 115 30Jun25 115 01Jul25 115 02Jul25 110 03Jul25 110 04Jul25 110 05Jul25 115 06Jul25 120 07Jul25 130 08Jul25 140 09Jul25 145 10Jul25 150 11Jul25 155 12Jul25 160 13Jul25 150 14Jul25 145 15Jul25 140 16Jul25 140 17Jul25 140 18Jul25 138 19Jul25 135 20Jul25 125 21Jul25 125 22Jul25 130 23Jul25 125 24Jul25 125 25Jul25 120 26Jul25 115 27Jul25 115 28Jul25 115 29Jul25 110 30Jul25 110 31Jul25 110 FORECASTER: AUTOMATED - SET4D SYSTEM 99999


Source: NOAA Space Weather
Prediction Center

 

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