This page last updated December 19, 2020.



The National Space Weather Program wrote, "Space weather refers to conditions on the Sun and in the space environment that can influence the performance and reliability of space-borne and ground-based technological systems, and can endanger human life or health."1

Current Space Weather

Current Space Weather conditions update automatically, irrespective of data on the remainder of this page!

Solar X-rays:
Geomagnetic Field:


Explanation of Space Weather Indicators Seen Above

An explanation of space weather indicators appears on a separate page.

Please go to Space Weather Indicators for the explanation. It will assist your understanding of space weather.

NOAA Space Weather Scale descriptions can be found at: NOAA Space Weather Scales.

Today's Sun!

December 19, 2020


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December 19, 2020

SIDC reports that NOAA AR 2793 has produced one low B flare in the past 24 hours, and has meanwhile decayed to a plage. The chance for a C flare in the next 24 hours is estimated at only 5%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR has increased from about 290 to about 340 km/s in the past 24 hours. The orientation of the Interplanetary Magnetic Field (IMF) was predominantly positive (away from the Sun) and its magnitude varied between about 1 and 11 nT, with current values around 7 nT. Bz was never below -5 nT for an extended period. December 19, reaching a minimum of about -8 nT. Nominal solar wind conditions are expected in the next days, with a chance for slightly enhanced intervals.

Finally, SIDC reports quiet geomagnetic conditions 1K Dourbes between 0 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on December 19, 20 and 21, with a slight chance for active intervals (K Dourbes = 4) on December 19 and December 20.

Now . . . let's take a little tour into the realm of: