Solar Information
Solar images from SOHO
The Sun Now
Extreme ultraviolet Imaging Telescope image at 284 Angstrom (to 2 million degrees K)
Michelson Doppler Imager (MDI) image showing sunspots
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
Solar Cycle
Solar Wind
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.