Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #20-51 2020 December 20 at 6:26 p.m. MST (2020 December 21 0126 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 14-20 No significant space weather storms were observed during the summary period. Outlook For December 21-27 G1 (Minor) geomagnetic storms are likely on 23 December due to coronal hole high speed stream influence. No other significant space weath ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 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 356 Issued at 0030Z on 21 Dec 2020 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 2794 S17E78 347 0120 Hsx 02 01 Alpha IA. H-alpha Plages without Spots. Locations Valid at 20 ...Continue Reading

Space Weather News for Dec. 20, 2020 https://spaceweather.com https://www.spaceweatheralerts.com "CHRISTMAS STAR" CONJUNCTION: Jupiter and Saturn are about to have their finest conjunction in hundreds of years. On Monday, Dec. 21st, the two planets will lie just 0.1 degrees apart--so close that some people will perceive them as a single brilliant "Christmas star." The view through small telescopes is dynamite! Visit Spaceweather.com for observing tips and more. Instant sol ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 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 355 Issued at 0030Z on 20 Dec 2020 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 None IA. H-alpha Plages without Spots. Locations Valid at 19/2400Z Dec Nmbr Location Lo 2792 ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 Dec 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 354 Issued at 0030Z on 19 Dec 2020 Report compiled from data received at SWO on 18 Dec 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 Dec Nmbr Location Lo 2792 ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 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 353 Issued at 0030Z on 18 Dec 2020 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 2793 S15E22 081 0010 Bxo 02 02 Beta IA. H-alpha Plages without Spots. Locations Valid at 17/ ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated event, 1 new image) -- TROPICAL CYCLONES IN THE SOUTH PACIFIC Warm ocean temperatures can promote storms in the region, though the wide spacing between the many small islands make landfalls less common. * Cyclone Yasa Bearing Down on Fiji (Image from Dec 16, 2020; Posted Dec 16, 2020) https://earthobservatory.nasa.gov/images/147672/cyclone-yasa-bearing- ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 Dec 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 352 Issued at 0030Z on 17 Dec 2020 Report compiled from data received at SWO on 16 Dec I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2793 S15E35 082 0030 Cro 04 02 Beta IA. H-alpha Plages without Spots. Locations Valid at 16/ ...Continue Reading

Space Weather News for Dec. 16, 2020 https://spaceweather.com https://www.spaceweatheralerts.com CRESCENT MOON JOINS THE GREAT CONJUNCTION: When the sun goes down tonight, step outside and look southwest. A whisper-thin crescent Moon is photo-bombing the Great Conjunction of Jupiter and Saturn. For the next two nights, the Moon will glide by the giant planets, which are themselves on the verge of their finest pairing in hundreds of years. Visit today's edition of Spaceweather.com for sky maps ...Continue Reading

:Product: Solar Region Summary :Issued: 2020 Dec 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 351 Issued at 0030Z on 16 Dec 2020 Report compiled from data received at SWO on 15 Dec I. Regions with Sunspots. Locations Valid at 15/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2792 S22E26 103 0010 Bxo 06 02 Beta 2793 S15E49 081 0020 Cro 03 03 Beta IA. H-alpha Pl ...Continue Reading