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Solar Activity Alerts
22 Sept, 18:02
Solar Activity Alerts
22 Sept, 17:09
Solar Activity Alerts
22 Sept, 17:09
Solar Activity Alerts
22 Sept, 17:09
:Product: Forecast Discussion :Issued: 2026 Sep 22 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Solar Activity.24 hr Summary... Solar activity continued at low levels, with the largest event being a C2.0 flare at 22/0451 UTC from Region 4536 (N02W08, Csi/beta). There are seven numbered sunspot regions on the visible disk: Region 4533 (S13E44, Hsx/alpha) is a generally stable unipolar spot. Region 4534 (N11W28, Dai/beta) underwent growth with intermediate flux emergence and pole consolidation. Region 4535 (N12E55, Cao/beta) is decaying with trailing spots submerging upon rotating further onto the disk. Regions 4536, 4537 (N08W19, Bxo/beta) and 4538 (N12W16, Bxo/beta) grew slightly with flux emergence and consolidation. Region 4539 (S09E34, Dro/beta) rapidly emerged and was numbered this period.No Earth-directed CMEs were observed inSolar Activity Alerts
22 Sept, 17:09
Space Weather Message Code: WATA20 Serial Number: 1126 Issue Time: 2026 Sep 21 1832 UTCWATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Sep 22: None (Below G1) Sep 23: None (Below G1) Sep 24: G1 (Minor) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment:NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanationPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.Solar Activity Alerts
22 Sept, 15:04
Solar Activity Alerts
22 Sept, 15:01
Solar Activity Alerts
22 Sept, 12:32
:Product: Forecast Discussion :Issued: 2026 Sep 22 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Solar Activity.24 hr Summary... Solar activity continued at low levels, with the largest event being a C2.0 flare at 22/0451 UTC from Region 4536 (N02W08, Csi/beta). There are seven numbered sunspot regions on the visible disk: Region 4533 (S13E44, Hsx/alpha) is a generally stable unipolar spot. Region 4534 (N11W28, Dai/beta) underwent growth with intermediate flux emergence and pole consolidation. Region 4535 (N12E55, Cao/beta) is decaying with trailing spots submerging upon rotating further onto the disk. Regions 4536, 4537 (N08W19, Bxo/beta) and 4538 (N12W16, Bxo/beta) grew slightly with flux emergence and consolidation. Region 4539 (S09E34, Dro/beta) rapidly emerged and was numbered this period.No Earth-directed CMEs were observed inSolar Activity Alerts
22 Sept, 12:04
Solar Activity Alerts
22 Sept, 12:01
Solar Activity Alerts
22 Sept, 09:06
Solar Activity Alerts
22 Sept, 09:04
Solar Activity Alerts
22 Sept, 09:03
Solar Activity Alerts
22 Sept, 09:00
Solar Activity Alerts
22 Sept, 06:13
Solar Activity Alerts
22 Sept, 06:02
Solar Activity Alerts
22 Sept, 03:06
Solar Activity Alerts
22 Sept, 03:01
Solar Activity Alerts
22 Sept, 00:31
:Product: Forecast Discussion :Issued: 2026 Sep 22 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Solar Activity.24 hr Summary... Solar activity was at low levels with weak, isolated C-class flare activity. Regions 4534 (N11W21, Dri/beta) and 4536 (N03E01,Cri/beta) underwent evolution, developing penumbra and additional spots. Regions 4537 (N07W11, Bxo/beta) and 4538 (N11W09 Bxo/beta) emerged this period, were subsequently numbered, but have remained relatively quiet. No Earth-directed CMEs were observed in available coronagraph imagery..Forecast... Solar activity will likely continue at low levels with isolated to occasional C-class flare activity, with a slight chance (10%) for isolated M-class flare events, through 24 Sep.Energetic ParticleSolar Activity Alerts
22 Sept, 00:09
Related Channels
Other channels in the same section of the catalogue.
