Space Weather Message Code: ALTEF3 Serial Number: 3666 Issue Time: 2026 Apr 05 0507 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3665 Begin Time: 2026 Apr 03 0920 UTC Yesterday Maximum 2MeV Flux: 2419 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: 2026 Apr 05 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 95 Issued at 0030Z on 05 Apr 2026 Report compiled from data received at SWO on 04 Apr I. Regions with Sunspots. Locations Valid at 04/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4403 N15W66 207 0020 Hrx 05 01 Alpha 4404 N13W47 188 0040 Cso 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3665 Issue Time: 2026 Apr 04 1158 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3664 Begin Time: 2026 Apr 03 0920 UTC Yesterday Maximum 2MeV Flux: 4465 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: 2026 Apr 04 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 94 Issued at 0030Z on 04 Apr 2026 Report compiled from data received at SWO on 03 Apr I. Regions with Sunspots. Locations Valid at 03/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4399 S16W92 246 0050 Hsx 02 01 Alpha 4403 N15W53 207 0050 Cso 0 ...Continue Reading

Réunion Island Lava; March of the Harmattan; Grassland Fires   April 3, 2026 Natural Events   This Week's Natural Event Images View the natural events archive Réunion Island Lava Reaches the Sea The February 2026 eruption at Piton de la Fournaise has lasted longer and produced a larger volume of lava than recent eruptions from this frequently active volcano. March of the Harmattan Strong winds in March 2026 carried ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3664 Issue Time: 2026 Apr 03 0936 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2026 Apr 03 0920 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: 2026 Apr 03 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 93 Issued at 0030Z on 03 Apr 2026 Report compiled from data received at SWO on 02 Apr I. Regions with Sunspots. Locations Valid at 02/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4399 S16W78 245 0050 Hsx 02 01 Alpha 4401 N25W83 250 0070 Hax 0 ...Continue Reading

Réunion Island Lava; March of the Harmattan   April 2, 2026 Natural Events   Latest Natural Event Images View the natural events archive Réunion Island Lava Reaches the Sea The February 2026 eruption at Piton de la Fournaise has lasted longer and produced a larger volume of lava than recent eruptions from this frequently active volcano. March of the Harmattan Strong winds in March 2026 carried Saharan dust across n ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Apr 02 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 92 Issued at 0030Z on 02 Apr 2026 Report compiled from data received at SWO on 01 Apr I. Regions with Sunspots. Locations Valid at 01/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4399 S16W65 245 0050 Hsx 02 01 Alpha 4401 N25W70 250 0090 Hax 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3663 Issue Time: 2026 Apr 01 1330 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3662 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 1413 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