Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #25-13 2025 April 13 at 7:43 p.m. MDT (2025 April 14 0143 UTC) **** SPACE WEATHER OUTLOOK **** Summary For April 7-13 G1 Minor storm levels were observed on 08-09, and 12 April. R1 (Minor) radio blackouts were observed on 08, 11-13 April. Outlook For April 14-20 G2 Moderate storm levels are expected on 16 April. G1 Minor storm levels are expected on 17 April. ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Apr 14 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 104 Issued at 0030Z on 14 Apr 2025 Report compiled from data received at SWO on 13 Apr I. Regions with Sunspots. Locations Valid at 13/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4055 N07W75 235 0820 Ekc 13 14 Beta-Gamma-Delta 4056 S08W24 184 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3452 Issue Time: 2025 Apr 13 2120 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3451 Begin Time: 2025 Apr 05 1225 UTC Yesterday Maximum 2MeV Flux: 2657 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 Apr 13 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 103 Issued at 0030Z on 13 Apr 2025 Report compiled from data received at SWO on 12 Apr I. Regions with Sunspots. Locations Valid at 12/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4054 S15W84 257 0090 Cso 04 04 Beta 4055 N04W64 237 0740 Ekc 1 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3451 Issue Time: 2025 Apr 12 0703 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3450 Begin Time: 2025 Apr 05 1225 UTC Yesterday Maximum 2MeV Flux: 3362 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 Apr 12 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 102 Issued at 0030Z on 12 Apr 2025 Report compiled from data received at SWO on 11 Apr I. Regions with Sunspots. Locations Valid at 11/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4048 S18W88 275 0020 Cao 02 02 Beta 4054 S14W70 256 0100 Dso 0 ...Continue Reading

April 11, 2025 Natural Events Latest Images From the Past Dayview archive of natural events Blooming British Isles The colorful North Atlantic waters visible around the archipelago in April 2025 are likely due to a mix of phytoplankton and suspended sediment. (Apr 10, 2025) NASA | 8800 Greenbelt Rd., Greenbelt, MD 20771 Unsubscribe nasa_reports@aus-city.com ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3450 Issue Time: 2025 Apr 11 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3449 Begin Time: 2025 Apr 05 1225 UTC Yesterday Maximum 2MeV Flux: 3362 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 Apr 11 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 101 Issued at 0030Z on 11 Apr 2025 Report compiled from data received at SWO on 10 Apr I. Regions with Sunspots. Locations Valid at 10/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4048 S16W79 278 0180 Fao 20 12 Beta 4054 S12W57 256 0150 Dso 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3449 Issue Time: 2025 Apr 10 0756 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3448 Begin Time: 2025 Apr 05 1225 UTC Yesterday Maximum 2MeV Flux: 3893 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