Space Weather Message Code: ALTEF3 Serial Number: 3465 Issue Time: 2025 May 19 1013 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3464 Begin Time: 2025 May 18 1705 UTC Yesterday Maximum 2MeV Flux: 1155 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 #25-16 2025 May 18 at 8:21 p.m. MDT (2025 May 19 0221 UTC) **** SPACE WEATHER OUTLOOK **** Summary For May 12-18 R3 (Strong) radio blackouts were observed on 13 May due to activity from Region 4086. R1-R3 (Minor-Strong) radio blackouts were observed on 14 May due to activity from Region 4087. R1 (Minor) radio blackouts were observed on 15 May due to activity f ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 May 19 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 139 Issued at 0030Z on 19 May 2025 Report compiled from data received at SWO on 18 May I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4087 N15W00 057 0240 Dso 09 04 Beta-Gamma-Delta 4089 N17E29 028 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3464 Issue Time: 2025 May 18 1721 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 May 18 1705 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 May 18 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 138 Issued at 0030Z on 18 May 2025 Report compiled from data received at SWO on 17 May I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4087 N16E12 058 0220 Dso 08 07 Beta-Gamma-Delta 4089 N18E44 026 ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 May 17 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 137 Issued at 0030Z on 17 May 2025 Report compiled from data received at SWO on 16 May I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4087 N17E24 060 0230 Dso 09 10 Beta-Gamma-Delta 4088 N09W74 156 ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 May 16 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 136 Issued at 0030Z on 16 May 2025 Report compiled from data received at SWO on 15 May I. Regions with Sunspots. Locations Valid at 15/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4082 S09W92 189 0020 Hsx 02 01 Alpha 4087 N15E39 058 0250 Dho ...Continue Reading

May 15, 2025 Natural Events Latest Images From the Past Dayview archive of natural events Fires Erupt in North American Forests Record heat and dry conditions helped stoke several large blazes in Manitoba, Ontario, and Minnesota. (May 14, 2025) NASA | 8800 Greenbelt Rd., Greenbelt, MD 20771 Unsubscribe {recipient's email} Update Profile ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 May 15 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 135 Issued at 0030Z on 15 May 2025 Report compiled from data received at SWO on 14 May I. Regions with Sunspots. Locations Valid at 14/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4082 S09W78 188 0040 Hsx 02 01 Alpha 4085 N03W30 140 0010 Bxo ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 May 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 134 Issued at 0030Z on 14 May 2025 Report compiled from data received at SWO on 13 May I. Regions with Sunspots. Locations Valid at 13/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4082 S09W65 188 0040 Hsx 02 01 Alpha 4085 N03W16 139 0020 Bxo ...Continue Reading