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

Discover the latest from NASA Earth Science   September 15, 2026 Weekly News   Latest Images of the Day View the Image of the Day archive An Accidental Impact Crater Discovery  An amateur astronomer scouting online satellite maps for campsites in Quebec found an impact crater instead. An Early Look at Fall Color in Canada Reds, yellows, and oranges are already sweeping across tundra landscapes in Nunavut. ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Sep 15 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 258 Issued at 0030Z on 15 Sep 2026 Report compiled from data received at SWO on 14 Sep I. Regions with Sunspots. Locations Valid at 14/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4524 N12W82 227 0010 Axx 01 01 Alpha 4527 N05W61 205 0180 Hax 03 03 Alpha 4528 S11W44 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3744 Issue Time: 2026 Sep 14 1103 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3743 Begin Time: 2026 Sep 10 1304 UTC Yesterday Maximum 2MeV Flux: 1827 pfu Max time: 2026 Sep 13 1800 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

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