Space Weather News for Sept. 12, 2017 http://spaceweather.com https://www.facebook.com/spaceweatherdotcom GROUND LEVEL RADIATION EVENT: Sunday's powerful X8-class solar flare from departing sunspot AR2673 accelerated a swarm of protons toward Earth, producing a strong solar radiation storm and a "ground level event" (GLE). High-energy particles normally held at bay by Earth's atmosphere and magnetic field penetrated all the way to the ground on Sept. 10th. A leading analyst of GLEs s ...Continue Reading

:Product: Solar Region Summary :Issued: 2017 Sep 12 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 255 Issued at 0030Z on 12 Sep 2017 Report compiled from data received at SWO on 11 Sep I. Regions with Sunspots. Locations Valid at 11/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2674 N16W91 101 0030 Hrx 01 02 Alpha 2680 N09E53 317 0080 Hsx 02 01 Alpha IA. H-alpha ...Continue Reading

Space Weather Message Code: WARPC0 Serial Number: 84 Issue Time: 2017 Sep 11 1940 UTC EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected Extension to Serial Number: 83 Valid From: 2017 Sep 10 1630 UTC Now Valid Until: 2017 Sep 12 2359 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological ris ...Continue Reading

The following sections have been updated in the past 7 days. ------------------------------------------------------------------------ -- FIRES (1 updated event, 2 new images) -- FIRES IN THE WESTERN UNITED STATES Smoky fires plagued the western U.S. and Canada in the summer of 2017.  * Smoke Pall Spans the United States (Image from Sep 4, 2017; Posted on Sep 6, 2017)      https://earthobservatory.nasa.gov/NaturalHazards/view.php?id=90899&src=nha  * Fires near the Montana-Canada Border ( ...Continue Reading

The following sections have been updated in the past 3 days. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated event, 3 new images) -- HURRICANE IRMA The 2017 Atlantic hurricane season continued, as Irma formed in the eastern Atlantic and strengthened east of the Caribbean.  * Hurricane Irma Turns Caribbean Islands Brown (Image from Sep 10, 2017; Posted on Sep 12, 2017)      https://earthobservatory.nasa.gov/NaturalHazards/view.php?id=90952&src=n ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #17-37 2017 September 11 at 2:45 a.m. MDT (2017 September 11 0845 UTC) **** SPACE WEATHER OUTLOOK **** Summary For September 4-10 R1 (Minor) radio blackouts were observed on 04-09 September, R2 (Moderate) radio blackouts were observed on 04, 07, 08 September, and R3 (Strong) radio blackouts were observed on 06, 07, 10 September due to solar flare activity from active sunspot ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2660 Issue Time: 2017 Sep 11 0521 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2659 Begin Time: 2017 Sep 08 1935 UTC Yesterday Maximum 2MeV Flux: 7875 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: 2017 Sep 11 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 254 Issued at 0030Z on 11 Sep 2017 Report compiled from data received at SWO on 10 Sep I. Regions with Sunspots. Locations Valid at 10/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2674 N13W80 103 0300 Fko 18 04 Beta 2678 N11W22 045 0020 Cro 03 03 Beta 2680 N09E66 ...Continue Reading

Space Weather Message Code: WARPC0 Serial Number: 83 Issue Time: 2017 Sep 10 2342 UTC EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected Extension to Serial Number: 82 Valid From: 2017 Sep 10 1630 UTC Now Valid Until: 2017 Sep 11 2359 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological ris ...Continue Reading

Space Weather News for Sept. 10, 2017 http://spaceweather.com https://www.facebook.com/spaceweatherdotcom ANOTHER X-CLASS SOLAR FLARE: Departing sunspot AR2673 erupted again on Sept.10th (1606 UT), producing a major X8-class solar flare. A moderately strong solar radiation storm is underway as protons accelerated by the blast swarm around our planet. Shortwave radio blackouts over the Americas and around Earth's poles have also been observed in the aftermath of the explosion. Visit Spaceweathe ...Continue Reading