:Product: Solar Region Summary :Issued: 2026 Sep 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 265 Issued at 0030Z on 22 Sep 2026 Report compiled from data received at SWO on 21 Sep I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4533 S13E50 003 0040 Hsx 01 01 Alpha 4534 N11W21 074 0030 Dri 05 10 Beta 4535 N12E58 ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 264 Issued at 0030Z on 21 Sep 2026 Report compiled from data received at SWO on 20 Sep I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4532 S06W54 120 0010 Bxo 04 04 Beta 4533 S14E64 002 0030 Hsx 02 01 Alpha 4534 N11W08 ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 263 Issued at 0030Z on 20 Sep 2026 Report compiled from data received at SWO on 19 Sep I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4532 S06W39 119 0010 Axx 01 01 Alpha IA. H-alpha Plages without Spots. Locations Valid at 19 ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 262 Issued at 0030Z on 19 Sep 2026 Report compiled from data received at SWO on 18 Sep I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 18/2400Z Sep Nmbr Location Lo 4529 ...Continue Reading

Lake Powell Levels Drop; Summer Goes Out With a Heat Dome   September 18, 2026 Natural Events   This Week's Natural Event Images View the natural events archive Lake Powell Drops to Record-Low Levels Snow drought and unusually warm temperatures in the Colorado Basin in 2026 helped drive down reservoir water storage in the U.S. West. Summer Goes Out With a Heat Dome Temperature records toppled across the central and southern U.S. as ...Continue Reading

Lake Powell Drops to Record-Low Levels   September 18, 2026 Natural Events   Latest Natural Event Images View the natural events archive Lake Powell Drops to Record-Low Levels Snow drought and unusually warm temperatures in the Colorado Basin in 2026 helped drive down reservoir water storage in the U.S. West.     NASA Earth Observatory Where every day is Earth day Visit science.nasa.gov/earth/earth-observatory Follow NASAEarth ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 261 Issued at 0030Z on 18 Sep 2026 Report compiled from data received at SWO on 17 Sep I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4528 S11W83 189 0120 Hsx 02 01 Alpha IA. H-alpha Plages without Spots. Locations Valid at 17 ...Continue Reading

Summer Goes Out With a Heat Dome   September 17, 2026 Natural Events   Latest Natural Event Images View the natural events archive Summer Goes Out With a Heat Dome Temperature records toppled across the central and southern U.S. as the autumnal equinox approached.     NASA Earth Observatory Where every day is Earth day Visit science.nasa.gov/earth/earth-observatory Follow NASAEarth       ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 260 Issued at 0030Z on 17 Sep 2026 Report compiled from data received at SWO on 16 Sep I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4527 N03W85 204 0130 Hax 03 02 Alpha 4528 S11W70 189 0120 Hsx 02 01 Alpha IA. H-alpha ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 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 259 Issued at 0030Z on 16 Sep 2026 Report compiled from data received at SWO on 15 Sep I. Regions with Sunspots. Locations Valid at 15/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4527 N05W74 205 0150 Hax 03 02 Alpha 4528 S11W57 189 0120 Hsx 02 01 Alpha IA. H-alpha ...Continue Reading