Space Weather News for May 22, 2015 http://spaceweather.com NOCTILUCENT CLOUDS: NASA's AIM spacecraft has spotted a luminous patch of electric-blue drifting across the Arctic Circle. The sighting marks the beginning of the 2015 season for northern-hemisphere noctilucent clouds (NLCs). Long ago, NLCs were a polar phenomenon confined mainly to the Arctic. In recent years, however, they have intensified and spread, with sightings as far south as Utah and Colorado. Learn more about these exotic clouds and how you might s ...Continue Reading

:Product: Solar Region Summary :Issued: 2015 May 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 142 Issued at 0030Z on 22 May 2015 Report compiled from data received at SWO on 21 May I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2346 S06W69 061 0020 Cro 04 02 Beta 2348 S11W32 024 0040 Hax 02 01 Alpha 2349 S21W10 ...Continue Reading

:Product: Solar Region Summary :Issued: 2015 May 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 141 Issued at 0030Z on 21 May 2015 Report compiled from data received at SWO on 20 May I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2342 N18W92 096 0010 Bxo 10 01 Beta 2344 S10W67 073 0010 Cro 03 01 Beta 2346 S06W55 ...Continue Reading

The following sections have been updated in the past 1 days. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated events, 1 new images) -- TYPHOON DOLPHIN Typhoon Dolphin tracks across the Pacific Ocean. * http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=85897&src=nha *** Image from May 18, 2015 (Posted on May 18, 2015 4:11 PM) --------------------------------------------------------------------- Natural Hazards is a service of NASA's Earth Observatory. ht ...Continue Reading

The latest from NASA's Earth Observatory (19 May 2015) ------------------------------------------------------------------------ New Features: http://earthobservatory.nasa.gov/Features/ * Science in a Dark Freezer: A Tale of Icy Beards, Frozen Tools, and Wintering Over at the South Pole http://earthobservatory.nasa.gov/Features/Benson/?src=eoa-features NASA scientist Robert Benson was one of “eighteen crazy men and a dog” who set up the first permanent science base at the South Pole. --------- ...Continue Reading

:Product: Solar Region Summary :Issued: 2015 May 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 140 Issued at 0030Z on 20 May 2015 Report compiled from data received at SWO on 19 May I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2341 S20W83 101 0010 Axx 01 01 Alpha 2342 N16W73 093 0090 Cao 07 03 Beta 2344 S10W53 ...Continue Reading

Space Weather News for May 19, 2015 http://spaceweather.com GEOMAGNETIC STORM: A moderate (G2-class) geomagnetic storm is underway on May 19th as Earth enters an unsettled stream of solar wind. High-latitude sky watchers should be alert for auroras, especially during the hours around local midnight. Visit http://spaceweather.com for updates. SPRITE SEASON BEGINS: As northern summer approaches, photographers in Europe and the USA are starting to see "red sprites," an exotic form of lightning that shoots ou ...Continue Reading

:Product: Solar Region Summary :Issued: 2015 May 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 139 Issued at 0030Z on 19 May 2015 Report compiled from data received at SWO on 18 May I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2339 N11W96 127 0070 Hsx 10 01 Alpha 2341 S19W71 103 0070 Hsx 05 02 Alpha 2342 N17W64 ...Continue Reading

The following sections have been updated in the past 7 days. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated events, 1 new images) -- TROPICAL STORM ANA The first Atlantic tropical storm of 2015 made landfall in South Carolina. * http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=85864&src=nha *** Image from May 08, 2015 (Posted on May 12, 2015 12:38 PM) -- VOLCANOES AND EARTHQUAKES (1 updated events, 1 new images) -- MOUNT ST. HELENS A year after the ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2185 Issue Time: 2015 May 18 0502 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2184 Begin Time: 2015 May 14 0920 UTC Yesterday Maximum 2MeV Flux: 9241 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