Space Weather Message Code: ALTEF3 Serial Number: 3760 Issue Time: 2026 Oct 28 0923 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3759 Begin Time: 2026 Oct 23 1140 UTC Yesterday Maximum 2MeV Flux: 1789 pfu Max time: 2026 Oct 27 1715 UTCThank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address fo ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Oct 28 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 301 Issued at 0030Z on 28 Oct 2026 Report compiled from data received at SWO on 27 Oct I. Regions with Sunspots. Locations Valid at 27/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4561 S11W91 029 0030 Dai 05 04 Beta 4562 S17E34 264 0010 Axx 01 01 Alpha IA. H-alpha Plages withou ...Continue Reading

Discover the latest from NASA Earth Science   October 27, 2026 Weekly News   Latest Images of the Day View the Image of the Day archive A-81 Reaches South Georgia The Antarctic iceberg made a relatively quick exit from the Weddell Sea, only to slow at the edge of a remote island’s underwater shelf. Hunting Red Leaves with Satellites A modern satellite makes it possible to pursue the ancient tradition of leaf-peeping in a whole new w ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3759 Issue Time: 2026 Oct 27 1138 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3758 Begin Time: 2026 Oct 23 1140 UTC Yesterday Maximum 2MeV Flux: 3304 pfu Max time: 2026 Oct 26 1105 UTCThank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address fo ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Oct 27 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 300 Issued at 0030Z on 27 Oct 2026 Report compiled from data received at SWO on 26 Oct I. Regions with Sunspots. Locations Valid at 26/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4561 S11W77 028 0030 Dai 05 04 Beta 4562 S17E49 262 0010 Axx 01 01 Alpha IA. H-alpha Plages withou ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3758 Issue Time: 2026 Oct 26 0517 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3757 Begin Time: 2026 Oct 23 1140 UTC Yesterday Maximum 2MeV Flux: 2864 pfu Max time: 2026 Oct 25 1820 UTCThank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address fo ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #26-41 2026 October 25 at 7:22 p.m. MDT (2026 October 26 0122 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 19-25 -G1 (Minor) geomagnetic storming was observed on 21 Oct due to positive polarity coronal hole/high speed stream influences. Outlook For October 26-November 1 -G1 (Minor) geomagnetic storm periods are likely on31 Oct due to the anticipated influence ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Oct 26 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 299 Issued at 0030Z on 26 Oct 2026 Report compiled from data received at SWO on 25 Oct I. Regions with Sunspots. Locations Valid at 25/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4560 N13W84 048 0150 Fao 16 12 Beta IA. H-alpha Plages without Spots. Locations Valid at 25/2400Z Oct N ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3757 Issue Time: 2026 Oct 25 0927 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3756 Begin Time: 2026 Oct 23 1140 UTC Yesterday Maximum 2MeV Flux: 3259 pfu Max time: 2026 Oct 24 1530 UTCThank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address fo ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Oct 25 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 298 Issued at 0030Z on 25 Oct 2026 Report compiled from data received at SWO on 24 Oct I. Regions with Sunspots. Locations Valid at 24/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4560 N13W72 050 0150 Fai 17 15 Beta-Gamma IA. H-alpha Plages without Spots. Locations Valid at 24/2400Z ...Continue Reading