Solar Information


Solar images from SOHO



The Sun Now

EIT
Extreme ultraviolet Imaging Telescope image at 284 Angstrom (to 2 million degrees K)


Sun Spots
Michelson Doppler Imager (MDI) image showing sunspots


MDI Magnetogram
Magnetogram image showing magnetic field, black and white show opposite polarities


Information from the Space Weather Prediction Center, Boulder, CO
National Oceanic and Atmospheric Administration (NOAA)


Aurora Activity

Latest Aurora Activity



Solar Cycle


Sun Spot Number Progression
Graph showing Sun Spot Number Progression

Last 5 cycles Sun Spot Number Progression
Last 5 cycles Sun Spot Number Progression



Solar Wind

Latest Solar Wind Data



3-day Solar-Geophysical Forecast

:Product: 3-Day Forecast
:Issued: 2025 Jan 10 1230 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jan 10-Jan 12 2025 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jan 10-Jan 12 2025

             Jan 10       Jan 11       Jan 12
00-03UT       1.33         2.33         1.67     
03-06UT       3.33         0.67         2.67     
06-09UT       1.67         1.33         1.33     
09-12UT       3.00         2.00         1.33     
12-15UT       1.33         1.67         2.67     
15-18UT       1.67         2.00         3.00     
18-21UT       1.67         3.33         3.67     
21-00UT       1.67         2.67         1.67     

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.  No
significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Jan 10-Jan 12 2025

              Jan 10  Jan 11  Jan 12
S1 or greater   10%     10%     10%

Rationale: A slight chance for S1 (Minor) solar radiation storming will
persist through 12 Jan as Region 3947 continues to approach the west
limb.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jan 10-Jan 12 2025

              Jan 10        Jan 11        Jan 12
R1-R2           45%           45%           40%
R3 or greater   10%           10%           10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for isolated R3 (Strong) or greater events through
12 Jan. This is largely based on the magnetic complexity and persistent
activity of Region 3947.