Space Weather Message Code: ALTEF3 Serial Number: 3631 Issue Time: 2026 Feb 20 0716 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3630 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 3261 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 Feb 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 51 Issued at 0030Z on 20 Feb 2026 Report compiled from data received at SWO on 19 Feb I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4374 N09W64 065 0200 Cso 03 04 Beta 4375 N16W35 036 0010 Hrx 01 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3630 Issue Time: 2026 Feb 19 1206 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3629 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 3801 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 Feb 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 50 Issued at 0030Z on 19 Feb 2026 Report compiled from data received at SWO on 18 Feb I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4374 N08W50 064 0210 Dai 04 08 Beta 4375 N16W21 035 0010 Hrx 01 ...Continue Reading

A Second Cyclone Slams Madagascar   February 18, 2026 Natural Events   Latest Natural Event Images View the natural events archive A Second Cyclone Slams Madagascar Widespread flooding affected tens of thousands of people after cyclones Fytia and Gezani drenched the island.     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: 3629 Issue Time: 2026 Feb 18 0527 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3628 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 2215 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 Feb 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 49 Issued at 0030Z on 18 Feb 2026 Report compiled from data received at SWO on 17 Feb I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4373 N09W83 110 0110 Hax 03 03 Alpha 4374 N08W37 064 0220 Dsi 0 ...Continue Reading

Discover the latest from NASA Earth Science   February 17, 2026 Weekly News   Latest Images of the Day View the Image of the Day archive Home Reef Adds On The Tongan volcano expanded its mid-Pacific real estate during its latest eruptive phase. Surveying Popes Creek George Washington was born along this tidal creek in Virginia and, as a teenager, made one of his first surveying maps of the surrounding lands. ...Continue Reading

Home Reef Volcano Adds On   February 17, 2026 Natural Events   Latest Natural Event Images View the natural events archive Home Reef Adds On The Tongan volcano expanded its mid-Pacific real estate during its latest eruptive phase.     NASA Earth Observatory Where every day is Earth day Visit science.nasa.gov/earth/earth-observatory Follow NASAEarth       NASA Earth Science Division ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3628 Issue Time: 2026 Feb 17 1318 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3627 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 1518 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