Space Weather Message Code: ALTEF3 Serial Number: 3583 Issue Time: 2025 Dec 24 0506 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3582 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 5557 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 24 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 358 Issued at 0030Z on 24 Dec 2025 Report compiled from data received at SWO on 23 Dec I. Regions with Sunspots. Locations Valid at 23/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4312 N17W09 053 0040 Hsx 02 04 Alpha 4315 N21E07 037 0010 Axx ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3582 Issue Time: 2025 Dec 23 0902 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3581 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 1882 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 23 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 357 Issued at 0030Z on 23 Dec 2025 Report compiled from data received at SWO on 22 Dec I. Regions with Sunspots. Locations Valid at 22/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4312 N18E05 053 0040 Hsx 02 01 Alpha 4316 S08E10 048 0130 Dai ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3581 Issue Time: 2025 Dec 22 1500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3580 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 1566 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #25-47 2025 December 21 at 8:51 p.m. MST (2025 December 22 0351 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 15-21 G1 (Minor) geomagnetic storm levels were observed on 17 and 21 Dec. R1 (Minor) radio blackouts were observed on 19-21 Dec. Outlook For December 22-28 G1 (Minor) geomagnetic storm levels are expected on 22-23 Dec. Data used to provid ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 22 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 356 Issued at 0030Z on 22 Dec 2025 Report compiled from data received at SWO on 21 Dec I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4311 N03W54 125 0020 Cro 05 05 Beta 4312 N18E20 051 0040 Hsx 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3580 Issue Time: 2025 Dec 21 1445 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Dec 21 1425 UTC Station: GOES19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank 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 ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 21 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 355 Issued at 0030Z on 21 Dec 2025 Report compiled from data received at SWO on 20 Dec I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4311 N04W41 125 0010 Bxo 03 01 Beta 4312 N19E32 052 0040 Hsx 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3579 Issue Time: 2025 Dec 20 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3578 Begin Time: 2025 Dec 17 1405 UTC Yesterday Maximum 2MeV Flux: 3239 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading