Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #26-5 2026 February 2 at 2:37 a.m. MST (2026 February 2 0937 UTC) **** SPACE WEATHER OUTLOOK **** Summary For January 26-February 1 R1-R3 (Minor-Strong) radio blackouts occurred on 01 Feb due to flaring activity associated with sunspot Region 4366. G1 (Minor) geomagnetic storm levels were reached on 28 Jan due to coronal hole high speed stream activity. Outloo ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3618 Issue Time: 2026 Feb 02 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3617 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 10157 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 upda ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Feb 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 33 Issued at 0030Z on 02 Feb 2026 Report compiled from data received at SWO on 01 Feb I. Regions with Sunspots. Locations Valid at 01/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4357 S13W80 318 0010 Axx 01 01 Alpha 4359 N22W23 261 0010 Axx 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3617 Issue Time: 2026 Feb 01 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3616 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 11100 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 upda ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Feb 01 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 32 Issued at 0030Z on 01 Feb 2026 Report compiled from data received at SWO on 31 Jan I. Regions with Sunspots. Locations Valid at 31/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4349 S14W86 337 0040 Cso 06 04 Beta 4357 S14W60 311 0020 Cao 08 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3616 Issue Time: 2026 Jan 31 0503 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3615 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 9214 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 Jan 31 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 31 Issued at 0030Z on 31 Jan 2026 Report compiled from data received at SWO on 30 Jan I. Regions with Sunspots. Locations Valid at 30/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4349 S14W73 337 0130 Cso 03 04 Beta 4357 S13W47 311 0020 Cao 08 ...Continue Reading

Cold and snow in U.S.; Flooding in Mozambique   January 30, 2026 Natural Events   This Week's Natural Event Images View the natural events archive Extreme January Cold Following a significant winter storm, frigid temperatures lingered in late January 2026 across a vast swath of the U.S. Snow Buries the U.S. Interior and East Satellites observed a frozen landscape across much of the country after a massive winter storm. ...Continue Reading

Extreme January Cold   January 30, 2026 Natural Events   Latest Natural Event Images View the natural events archive Extreme January Cold Following a significant winter storm, frigid temperatures lingered in late January 2026 across a vast swath of the U.S.     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: 3615 Issue Time: 2026 Jan 30 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3614 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 8017 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