Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #26-36 2026 September 13 at 7:21 p.m. MDT (2026 September 14 0121 UTC) **** SPACE WEATHER OUTLOOK **** Summary For September 7-13 Solar activity was at low levels for 07-10 Sep and 12-13 Sep, and was at very low levels on 11 Sep. The largest flare of the period was a C5.8/Sf at 12/1720 UTC from Region 4521 (N09, L=266, class/area Hsx/90 on 06 Sep). This region was responsible ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 257 Issued at 0030Z on 14 Sep 2026 Report compiled from data received at SWO on 13 Sep I. Regions with Sunspots. Locations Valid at 13/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4524 N12W68 225 0020 Hrx 01 01 Alpha 4525 N11W52 211 0010 Bxo 05 02 Beta 4527 N04W48 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3743 Issue Time: 2026 Sep 13 0827 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3742 Begin Time: 2026 Sep 10 1304 UTC Yesterday Maximum 2MeV Flux: 1828 pfu Max time: 2026 Sep 12 1615 UTCThank 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 Subscription Site. Please do not use the from address fo ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 256 Issued at 0030Z on 13 Sep 2026 Report compiled from data received at SWO on 12 Sep I. Regions with Sunspots. Locations Valid at 12/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4521 N09W93 265 0020 Hsx 01 01 Alpha 4524 N12W54 226 0020 Hrx 01 01 Alpha 4525 N11W38 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3742 Issue Time: 2026 Sep 12 0645 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3741 Begin Time: 2026 Sep 10 1304 UTC Yesterday Maximum 2MeV Flux: 7008 pfu Max time: 2026 Sep 11 1355 UTCThank 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 Subscription Site. Please do not use the from address fo ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 12 0035 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 255 Issued at 0030Z on 12 Sep 2026 Report compiled from data received at SWO on 11 Sep I. Regions with Sunspots. Locations Valid at 11/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4521 N09W79 264 0020 Hsx 01 01 Alpha 4524 N12W40 225 0020 Hsx 01 01 Alpha 4525 N11W24 ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 12 0036 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 255 Issued at 0030Z on 12 Sep 2026 Report compiled from data received at SWO on 11 Sep I. Regions with Sunspots. Locations Valid at 11/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4521 N09W79 264 0020 Hsx 01 01 Alpha 4524 N12W40 225 0020 Hsx 01 01 Alpha 4525 N11W24 ...Continue Reading

Volcanoes and Dust   September 11, 2026 Natural Events   This Week's Natural Event Images View the natural events archive Dust Storm Sweeps Over Mali At a time of year when dust storm activity winds down, a plume of dust blanketed parts of the West African nation and its neighbors. Anak Krakatau Rumbles Again A powerful eruption from the Indonesian volcano lofted ash into the atmosphere, disrupting thousands of flights and degrading ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3741 Issue Time: 2026 Sep 11 0501 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3740 Begin Time: 2026 Sep 10 1304 UTC Yesterday Maximum 2MeV Flux: 1391 pfu Max time: 2026 Sep 11 0455 UTCThank 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 Subscription Site. Please do not use the from address fo ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3740 Issue Time: 2026 Sep 11 0045 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3739 Begin Time: 2026 Sep 10 1304 UTC Yesterday Maximum 2MeV Flux: 3080 pfu Max time: 2026 Sep 10 1745 UTCThank 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 Subscription Site. Please do not use the from address fo ...Continue Reading