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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 22 November follow. Solar flux 73 and estimated planetary A-index 10. The estimated planetary K-index at 1200 UTC on 23 November was 3. 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 DXers?

Forecast: A-Index & flux

45-DAY AP FORECAST 23Nov17 008 24Nov17 005 25Nov17 005 26Nov17 005 27Nov17 008 28Nov17 008 29Nov17 008 30Nov17 010 01Dec17 005 02Dec17 005 03Dec17 005 04Dec17 035 05Dec17 040 06Dec17 028 07Dec17 020 08Dec17 010 09Dec17 005 10Dec17 005 11Dec17 012 12Dec17 015 13Dec17 012 14Dec17 008 15Dec17 005 16Dec17 005 17Dec17 018 18Dec17 018 19Dec17 015 20Dec17 008 21Dec17 005 22Dec17 005 23Dec17 005 24Dec17 005 25Dec17 005 26Dec17 008 27Dec17 010 28Dec17 005 29Dec17 005 30Dec17 005 31Dec17 035 01Jan18 040 02Jan18 028 03Jan18 020 04Jan18 010 05Jan18 005 06Jan18 005 45-DAY F10.7 CM FLUX FORECAST 23Nov17 073 24Nov17 073 25Nov17 073 26Nov17 072 27Nov17 072 28Nov17 071 29Nov17 071 30Nov17 071 01Dec17 070 02Dec17 070 03Dec17 069 04Dec17 068 05Dec17 069 06Dec17 070 07Dec17 070 08Dec17 071 09Dec17 072 10Dec17 072 11Dec17 073 12Dec17 073 13Dec17 074 14Dec17 075 15Dec17 075 16Dec17 075 17Dec17 075 18Dec17 075 19Dec17 075 20Dec17 075 21Dec17 075 22Dec17 075 23Dec17 075 24Dec17 073 25Dec17 072 26Dec17 071 27Dec17 070 28Dec17 070 29Dec17 070 30Dec17 069 31Dec17 068 01Jan18 069 02Jan18 070 03Jan18 070 04Jan18 071 05Jan18 072 06Jan18 072 FORECASTER: Lakin / Maxwell 99999


Source: NOAA Space Weather
Prediction Center

Auroral activity

Northern hemisphere
Southern hemisphere
 

Web resources

Current situation:
  Space weather now (SEC)
  Today's space weather (SEC)
  Solarsoft latest events (LMSAL)
  Magnetic disturbance level in Nurmijärvi and Sodankylä in Finland (FMI)
  DST Index and AL Index
(LASP Colorado)
  DST Index
(Kyoto)

Forecasts:
  Solar forecast (SWPC)
  Solar forecast (SIDC)
  Geomagnetic summary and forecast (IPS)

Short and medium term data:
  Daily solar data (past 30 days, SWPC)
  Daily geomagnetic data (past 30 days, SWPC)
  Proton flux (3 days, SWPC)
  K and A indices in Australia (past 7 days, IPS)
  Solar Terrestrial activity report (past 60 days, DXLC)

Long-term data (solar cycle history):
  Solar cycle progression (SWPC)
  Solar cycle sunspots (SEC)
  Solar cycle sunspots (SIDC)
  Solar cycle solar flux (SEC)
  Solar cycle Ap-Index (SEC)

General information:
  Primer on Space Weather (SEC)
  Geophysical Alert Description (LWCA)

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