CURRENT SPACE WEATHER
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!
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.
Activity Level on the Sun
July 16, 2019
VERY LOW — No C-class flares in the past two days.
SIDC reports solar activity was at very low levels. The Sun remains spotless and no flares have been observed. Solar activity is expected to remain at very low levels.
No Earth-directed Coronal Mass Ejections (CMEs) were observed over the last 24 hours in the available coronagraph imagery.
The greater than 10 MeV proton flux remained at background levels over the past 24 hours.
The solar wind speed varied between approximately 370 and 500 km/s (ACE). Bz varied between -4 and +4 nT. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector). Quiet unsettled geomagnetic conditions were observed, with the Kp index (NOAA) ranging between 0-2 and the local K index (Dourbes) ranging between 0-3 over the past 24 hours.
Finally, SIDC reports quiet to unsettled geomagnetic conditions are expected due to the arrival of the solar wind stream associated with the negative polarity equatorial coronal hole, which began to transverse the central meridian on July 11.