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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 20 January follow. Solar flux 99 and estimated planetary A-index 5. The estimated planetary K-index at 0000 UTC on 21 January was 1. Space weather for the past 24 hours has been moderate. Solar radiation storms reaching the S1 level occurred. Radio blackouts reaching the R2 level occurred. 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 21Jan22 008 22Jan22 010 23Jan22 012 24Jan22 008 25Jan22 008 26Jan22 008 27Jan22 005 28Jan22 010 29Jan22 010 30Jan22 010 31Jan22 005 01Feb22 005 02Feb22 005 03Feb22 005 04Feb22 015 05Feb22 010 06Feb22 005 07Feb22 005 08Feb22 005 09Feb22 005 10Feb22 012 11Feb22 015 12Feb22 012 13Feb22 018 14Feb22 010 15Feb22 005 16Feb22 005 17Feb22 005 18Feb22 005 19Feb22 005 20Feb22 008 21Feb22 008 22Feb22 008 23Feb22 005 24Feb22 010 25Feb22 010 26Feb22 010 27Feb22 005 28Feb22 005 01Mar22 005 02Mar22 005 03Mar22 015 04Mar22 010 05Mar22 005 06Mar22 005 45-DAY F10.7 CM FLUX FORECAST 21Jan22 095 22Jan22 093 23Jan22 091 24Jan22 089 25Jan22 089 26Jan22 089 27Jan22 092 28Jan22 092 29Jan22 090 30Jan22 090 31Jan22 095 01Feb22 100 02Feb22 105 03Feb22 110 04Feb22 110 05Feb22 110 06Feb22 110 07Feb22 110 08Feb22 110 09Feb22 110 10Feb22 110 11Feb22 115 12Feb22 115 13Feb22 115 14Feb22 115 15Feb22 110 16Feb22 108 17Feb22 106 18Feb22 102 19Feb22 102 20Feb22 102 21Feb22 102 22Feb22 100 23Feb22 100 24Feb22 095 25Feb22 090 26Feb22 090 27Feb22 095 28Feb22 100 01Mar22 105 02Mar22 110 03Mar22 110 04Mar22 110 05Mar22 110 06Mar22 110 FORECASTER: BAXTER / TROST 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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