Space Weather Message Code: ALTEF3 Serial Number: 3137 Issue Time: 2021 Apr 23 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3136 Begin Time: 2021 Apr 17 1715 UTC Yesterday Maximum 2MeV Flux: 15548 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 Su ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Apr 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 113 Issued at 0030Z on 23 Apr 2021 Report compiled from data received at SWO on 22 Apr I. Regions with Sunspots. Locations Valid at 22/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2816 S24W18 261 0050 Cro 10 06 Beta 2817 N18W88 331 0140 Cso 09 05 Beta 2818 S17E39 ...Continue Reading

Space Weather News for April 22, 2021 https://spaceweather.com https://www.spaceweatheralerts.com GEOMAGNETIC STORM WARNING: A CME is heading for Earth and it could spark a geomagnetic storm when it arrives on April 25th. NOAA forecasters say moderately strong G2-class storms are possible, which means auroras could dip into northern-tier US states from Maine to Washington. Full story and updates @ Spaceweather.com. Aurora alerts: Sign up for Space Weather Alerts and receive a text message whe ...Continue Reading

Space Weather News for April 22, 2021 https://spaceweather.com https://www.spaceweatheralerts.com A RARE ECLIPSE OF JUPITER'S MOONS: It may be the weirdest eclipse you've ever seen. Three days ago near Jupiter, the shadow of Callisto almost swallowed Ganymede--and it's about to happen again. Eclipse season is underway among Jupiter's moons. Movies and observing tips are featured on today's edition of Spaceweather.com. Above: The shadow of Callisto passes across Ganymed ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3136 Issue Time: 2021 Apr 22 0501 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3135 Begin Time: 2021 Apr 17 1715 UTC Yesterday Maximum 2MeV Flux: 12720 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 Su ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Apr 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 112 Issued at 0030Z on 22 Apr 2021 Report compiled from data received at SWO on 21 Apr I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2816 S24W06 263 0100 Cao 09 09 Beta 2817 N18W79 336 0180 Dao 10 07 Beta 2818 S17E52 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3135 Issue Time: 2021 Apr 21 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3134 Begin Time: 2021 Apr 17 1715 UTC Yesterday Maximum 2MeV Flux: 13357 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 Su ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Apr 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 111 Issued at 0030Z on 21 Apr 2021 Report compiled from data received at SWO on 20 Apr I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2816 S24E08 262 0110 Cao 09 10 Beta 2817 N18W62 333 0140 Dai 07 13 Beta 2818 S17E66 ...Continue Reading

The latest from NASA's Earth Observatory (20 April 2021) ------------------------------------------------------------------------ Latest Images: https://earthobservatory.nasa.gov/topic/image-of-the-day * Fine-Tuning Irrigation in Asia https://earthobservatory.nasa.gov/images/148203/fine-tuning-irrigation-in-asia/?src=eoa-iotd * Surigae Stirs Up the Pacific https://earthobservatory.nasa.gov/images/148208/surigae-stirs-up-the-pacific/?src=eoa-iotd * Sea Ice Highs and Lows https://earthobservatory.nasa.gov/image ...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. * Surigae Stirs Up the Pacific (Image from Apr 19, 2021; Posted Apr 19, 2021) https://earthobservatory.nasa.gov/images/148208/surigae-stirs-up-the-pacific/?src=nha ----- We have a winner! Lak ...Continue Reading