Space Weather Message Code: ALTEF3 Serial Number: 3180 Issue Time: 2021 Dec 24 0905 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3179 Begin Time: 2021 Dec 22 1705 UTC Yesterday Maximum 2MeV Flux: 2411 pfu NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Sub ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Dec 23 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 357 Issued at 0030Z on 23 Dec 2021 Report compiled from data received at SWO on 22 Dec I. Regions with Sunspots. Locations Valid at 22/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2907 S21W50 311 0230 Eai 11 14 Beta-Gamma 2908 S20W39 300 0100 Dai 07 16 Beta-Gamma 29 ...Continue Reading

The latest from NASA's Earth Observatory (21 December 2021) ------------------------------------------------------------------------ Latest Images: https://earthobservatory.nasa.gov/topic/image-of-the-day * Grazing with Iceland's Reindeer https://earthobservatory.nasa.gov/images/149241/grazing-with-icelands-reindeer/?src=eoa-iotd * A Changed Landscape on La Palma https://earthobservatory.nasa.gov/images/149231/a-changed-landscape-on-la-palma/?src=eoa-iotd * South Sudan Submerged https://earthobservatory.nasa. ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- VOLCANOES (1 updated event, 1 new image) -- ERUPTION AT LA PALMA Cumbre Vieja, one of two volcanoes on La Palma, is one of the most active volcanoes in the Canaries. * A Changed Landscape on La Palma (Image from Dec 15, 2021; Posted Dec 20, 2021) https://earthobservatory.nasa.gov/images/149231/a-changed-landscape-on-la-palma/?src=nha -------------------------------------------- ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Dec 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 355 Issued at 0030Z on 21 Dec 2021 Report compiled from data received at SWO on 20 Dec I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2906 S29W57 344 0010 Axx 01 01 Alpha 2907 S21W26 313 0150 Dai 10 13 Beta-Gamma 2908 S2 ...Continue Reading

The following sections have been updated in the past 7 days. ------------------------------------------------------------------------ -- SEVERE STORMS (2 updated events, 4 new images) -- EXTREME WINTER WEATHER IN NORTH AMERICA 2021 Winter storms can bring heavy snow and freezing temperatures, though global warming also means there can be more potent rainstorms and heat waves as well. * Derecho Sweeps Across Midwest (Image from Dec 15, 2021; Posted Dec 16, 2021) https://earthobservatory.nasa.gov/images/149221/de ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #21-54 2021 December 19 at 7:41 p.m. MST (2021 December 20 0241 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 13-19 G1 (Minor) geomagnetic storms were observed on 19 Dec. R1 (Minor) radio blackout conditions were observed on 17 Dec. No other space weather storms were observed during the summary period. Outlook For December 20-26 G1 (Minor) geomagnetic s ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Dec 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 354 Issued at 0030Z on 20 Dec 2021 Report compiled from data received at SWO on 19 Dec I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2906 S29W45 345 0020 Hrx 01 01 Alpha 2907 S21W14 314 0250 Dki 10 15 Beta-Gamma 2908 S2 ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Dec 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 352 Issued at 0030Z on 18 Dec 2021 Report compiled from data received at SWO on 17 Dec I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2906 S29W16 343 0050 Cso 09 07 Beta 2907 S19E12 315 0280 Dhi 10 19 Beta-Gamma 2908 S20 ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated event, 1 new image) -- 2021 WESTERN PACIFIC TYPHOON SEASON An average of twenty tropical cyclones form each year amid some of the world's warmest ocean waters. * Super Typhoon Rai (Image from Dec 16, 2021; Posted Dec 16, 2021) https://earthobservatory.nasa.gov/images/149228/super-typhoon-rai/?src=nha ----------------------------------------------------- ...Continue Reading