Space Weather Message Code: ALTEF3 Serial Number: 3651 Issue Time: 2026 Mar 19 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3650 Begin Time: 2026 Mar 15 1630 UTC Yesterday Maximum 2MeV Flux: 2949 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 Mar 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 78 Issued at 0030Z on 19 Mar 2026 Report compiled from data received at SWO on 18 Mar I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4391 N07W61 066 0010 Axx 01 01 Alpha 4392 S17W12 017 0170 Csi 0 ...Continue Reading

Wave of Dust Rolls Through Texas   March 18, 2026 Natural Events   Latest Natural Event Images View the natural events archive Wave of Dust Rolls Through Texas An advancing cold front kicked up a sharp line of sand and other small particles that swept over the high plains.     NASA Earth Observatory Where every day is Earth day Visit science.nasa.gov/earth/earth-observatory Follow NASAEarth       ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3650 Issue Time: 2026 Mar 18 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3649 Begin Time: 2026 Mar 15 1630 UTC Yesterday Maximum 2MeV Flux: 2233 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 Mar 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 77 Issued at 0030Z on 18 Mar 2026 Report compiled from data received at SWO on 17 Mar I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4391 N07W47 067 0010 Axx 01 01 Alpha 4392 S16E01 018 0200 Csi 0 ...Continue Reading

Discover the latest from NASA Earth Science   March 17, 2026 Weekly News   Latest Images of the Day View the Image of the Day archive A Bit of Gray on an Emerald Isle Ireland is best known for its many greens, but the striking grays of the island's Burren region also stand out in satellite images. Cañon Fiord’s Whirling Waters During the 2022 summer melt season, sediment plumes and fractured sea ice traced swirling eddies in a ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3649 Issue Time: 2026 Mar 17 1403 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3648 Begin Time: 2026 Mar 15 1630 UTC Yesterday Maximum 2MeV Flux: 2213 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 Mar 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 76 Issued at 0030Z on 17 Mar 2026 Report compiled from data received at SWO on 16 Mar I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4392 S16E15 017 0160 Csi 06 12 Beta-Gamma 4393 N14W17 049 0030 C ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3648 Issue Time: 2026 Mar 16 1320 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3647 Begin Time: 2026 Mar 15 1630 UTC Yesterday Maximum 2MeV Flux: 1429 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 Mar 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 75 Issued at 0030Z on 16 Mar 2026 Report compiled from data received at SWO on 15 Mar I. Regions with Sunspots. Locations Valid at 15/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4391 N07W19 063 0010 Bxo 02 04 Beta 4392 S16E28 016 0170 Cso 05 ...Continue Reading