Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #25-39 2025 October 26 at 9:00 p.m. MDT (2025 October 27 0300 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 20-26 No NOAA scale geomagnetic storms were observed from 20 - 26 Oct. A single R1 - Minor radio blackout event was observed on 20 Oct at 0527 UTC. No S1 level events were observed from 20 - 26 Oct. Outlook For October 27-November 2 An isolate ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 27 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 300 Issued at 0030Z on 27 Oct 2025 Report compiled from data received at SWO on 26 Oct I. Regions with Sunspots. Locations Valid at 26/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4254 N11W87 176 0030 Hsx 01 01 Alpha 4257 S08W47 136 0070 Hsx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 26 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 299 Issued at 0030Z on 26 Oct 2025 Report compiled from data received at SWO on 25 Oct I. Regions with Sunspots. Locations Valid at 25/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4254 N10W73 175 0040 Hsx 01 01 Alpha 4257 S09W33 135 0060 Hsx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 25 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 298 Issued at 0030Z on 25 Oct 2025 Report compiled from data received at SWO on 24 Oct I. Regions with Sunspots. Locations Valid at 24/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4252 S13W94 209 0100 Hsx 03 01 Alpha 4254 N10W60 175 0050 Hsx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 24 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 297 Issued at 0030Z on 24 Oct 2025 Report compiled from data received at SWO on 23 Oct I. Regions with Sunspots. Locations Valid at 23/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4252 S13W81 208 0100 Hsx 03 01 Alpha 4254 N10W47 174 0050 Hsx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 23 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 296 Issued at 0030Z on 23 Oct 2025 Report compiled from data received at SWO on 22 Oct I. Regions with Sunspots. Locations Valid at 22/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4252 S13W68 210 0110 Hsx 03 01 Alpha 4254 N10W33 175 0060 Hsx ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 22 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 295 Issued at 0030Z on 22 Oct 2025 Report compiled from data received at SWO on 21 Oct I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4252 S10W55 210 0110 Cso 05 03 Beta 4254 N10W21 176 0060 Hsx 0 ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 21 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 294 Issued at 0030Z on 21 Oct 2025 Report compiled from data received at SWO on 20 Oct I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4248 N06W95 263 0380 Dko 10 05 Beta 4252 S12W42 210 0090 Hsx 0 ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #25-38 2025 October 19 at 7:59 p.m. MDT (2025 October 20 0159 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 13-19 G2-Moderate storm levels were observed on 18 Oct. G1-Minor storm levels were observed on 13 and 19 Oct. R1-Minor radio blackouts were observed on 13-19 Oct. Outlook For October 20-26 No significant space weather storms are expeced duri ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Oct 20 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 293 Issued at 0030Z on 20 Oct 2025 Report compiled from data received at SWO on 19 Oct I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4248 N06W81 262 0380 Dko 10 05 Beta 4252 S13W28 209 0150 Cso 0 ...Continue Reading