Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #18-51 2018 December 16 at 6:40 p.m. MST (2018 December 17 0140 UTC) **** SPACE WEATHER OUTLOOK **** Summary For December 10-16 No space weather storms were observed during the summary period. Outlook For December 17-23 No space weather storms are expected during the outlook period. Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF ...Continue Reading

:Product: Solar Region Summary :Issued: 2018 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 351 Issued at 0030Z on 17 Dec 2018 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 None IA. H-alpha Plages without Spots. Locations Valid at 16/2400Z Dec Nmbr Location Lo 2730 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2885 Issue Time: 2018 Dec 16 1416 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2884 Begin Time: 2018 Dec 10 2010 UTC Yesterday Maximum 2MeV Flux: 1273 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: 2018 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 350 Issued at 0030Z on 16 Dec 2018 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 2731 N13E35 024 0010 Axx 01 02 Alpha IA. H-alpha Plages without Spots. Locations Valid at 15 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2884 Issue Time: 2018 Dec 15 1352 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2883 Begin Time: 2018 Dec 10 2010 UTC Yesterday Maximum 2MeV Flux: 2388 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: 2018 Dec 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 349 Issued at 0030Z on 15 Dec 2018 Report compiled from data received at SWO on 14 Dec I. Regions with Sunspots. Locations Valid at 14/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2731 N13E49 023 0010 Bxo 05 02 Beta IA. H-alpha Plages without Spots. Locations Valid at 14/ ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2883 Issue Time: 2018 Dec 14 1305 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2882 Begin Time: 2018 Dec 10 2010 UTC Yesterday Maximum 2MeV Flux: 2117 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: 2018 Dec 14 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 348 Issued at 0030Z on 14 Dec 2018 Report compiled from data received at SWO on 13 Dec I. Regions with Sunspots. Locations Valid at 13/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 13/2400Z Dec Nmbr Location Lo 2730 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2882 Issue Time: 2018 Dec 13 1208 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2881 Begin Time: 2018 Dec 10 2010 UTC Yesterday Maximum 2MeV Flux: 2453 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: 2018 Dec 13 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 347 Issued at 0030Z on 13 Dec 2018 Report compiled from data received at SWO on 12 Dec I. Regions with Sunspots. Locations Valid at 12/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 12/2400Z Dec Nmbr Location Lo 2730 ...Continue Reading