Space Weather Message Code: ALTEF3 Serial Number: 3718 Issue Time: 2026 Jul 18 1526 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3717 Begin Time: 2026 Jul 17 1750 UTC Yesterday Maximum 2MeV Flux: 1085 pfu Max time: 2026 Jul 18 1520 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 no ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Jul 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 199 Issued at 0030Z on 18 Jul 2026 Report compiled from data received at SWO on 17 Jul I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4489 S07E13 192 0170 Cso 04 04 Beta 4491 S11E50 155 0020 Hrx 0 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3717 Issue Time: 2026 Jul 17 1822 UTC ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Threshold Reached: 2026 Jul 17 1750 UTC Station: GOES-18 Comment: Yesterday's max: 1382 pfu Thank 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 for correspondence, as it is not ...Continue Reading

Smoke and Heat Over North America   July 17, 2026 Natural Events   This Week's Natural Event Images View the natural events archive Ontario Wildfire Smoke Moves East Canadian wildfires sent plumes of smoke streaming over Ontario, Quebec, and parts of the U.S. Midwest and Northeast. Heat Dome Broils the Western U.S. A ridge of high pressure fueled record-breaking temperatures in Montana, Utah, and Wyoming on July 12, 2026.   ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Jul 17 0300 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 198 Issued at 0030Z on 17 Jul 2026 Report compiled from data received at SWO on 16 Jul I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4482 S09W82 301 0150 Hsx 04 01 Alpha 4489 S07E27 192 0170 Hax ...Continue Reading

Ontario Wildfire Smoke Moves East   July 16, 2026 Natural Events   Latest Natural Event Images View the natural events archive Ontario Wildfire Smoke Moves East Canadian wildfires sent plumes of smoke streaming over Ontario, Quebec, and parts of the U.S. Midwest and Northeast.     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 Jul 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 197 Issued at 0030Z on 16 Jul 2026 Report compiled from data received at SWO on 15 Jul I. Regions with Sunspots. Locations Valid at 15/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4482 S09W71 301 0240 Hsx 04 02 Alpha 4489 S07E39 190 0160 Hsx ...Continue Reading

Heat Dome Broils the Western U.S.   July 15, 2026 Natural Events   Latest Natural Event Images View the natural events archive Heat Dome Broils the Western U.S. A ridge of high pressure fueled record-breaking temperatures in Montana, Utah, and Wyoming on July 12, 2026.     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 Jul 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 196 Issued at 0030Z on 15 Jul 2026 Report compiled from data received at SWO on 14 Jul I. Regions with Sunspots. Locations Valid at 14/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4482 S09W57 302 0280 Hhx 04 03 Alpha 4487 N08W54 299 0010 Axx ...Continue Reading

Discover the latest from NASA Earth Science   July 14, 2026 Weekly News   Latest Images of the Day View the Image of the Day archive Fans of the Arctic Sediment eroded from ice-capped mountains splays out across a broad river valley on Russia’s Severny Island. Wild, Scenic, and Increasingly Rusty Orange streams are now being spotted in hundreds of watersheds in permafrost areas throughout Alaska’s Brooks Range. ...Continue Reading