Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #15-16 2015 April 19 at 7:00 p.m. MDT (2015 April 20 0100 UTC) **** SPACE WEATHER OUTLOOK **** Summary For April 13-19 Geomagnetic storms reaching G1 (minor) were observed on 15-16 April while G2 (moderate) storms were observed on 16 April. These storms were the result of a negative polarity coronal hole high speed stream (CH HSS). Outlook For April 20-26 Geomagnetic st ...Continue Reading

:Product: Solar Region Summary :Issued: 2015 Apr 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 110 Issued at 0030Z on 20 Apr 2015 Report compiled from data received at SWO on 19 Apr I. Regions with Sunspots. Locations Valid at 19/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2321 N11W36 092 0130 Eai 14 33 Beta-Gamma 2322 N13W62 118 0010 Bxo 04 03 Beta 2324 N19 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2175 Issue Time: 2015 Apr 19 0513 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2174 Begin Time: 2015 Apr 16 1330 UTC Yesterday Maximum 2MeV Flux: 3744 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: 2015 Apr 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 109 Issued at 0030Z on 19 Apr 2015 Report compiled from data received at SWO on 18 Apr I. Regions with Sunspots. Locations Valid at 18/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2321 N11W22 090 0180 Eac 14 16 Beta-Gamma 2322 N16W50 118 0010 Bxo 02 02 Beta 2324 N19 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2174 Issue Time: 2015 Apr 18 1006 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2173 Begin Time: 2015 Apr 16 1330 UTC Yesterday Maximum 2MeV Flux: 2088 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: 2015 Apr 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 108 Issued at 0030Z on 18 Apr 2015 Report compiled from data received at SWO on 17 Apr I. Regions with Sunspots. Locations Valid at 17/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2321 N11W08 090 0320 Ekc 14 17 Beta-Gamma 2324 N19E23 058 0250 Cki 06 09 Beta 2325 N04 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2173 Issue Time: 2015 Apr 17 1351 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2172 Begin Time: 2015 Apr 16 1330 UTC Yesterday Maximum 2MeV Flux: 2108 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: 2015 Apr 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 107 Issued at 0030Z on 17 Apr 2015 Report compiled from data received at SWO on 16 Apr I. Regions with Sunspots. Locations Valid at 16/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2321 N12E02 093 0380 Ekc 14 16 Beta-Gamma 2322 N12W25 120 0010 Bxo 05 02 Beta 2324 N18 ...Continue Reading

The following sections have been updated in the past 1 days. ------------------------------------------------------------------------ -- FIRES (1 updated events, 1 new images) -- FIRES IN SOUTHERN SIBERIA Many seasonal spring fires have escaped control in southern Siberia. * http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=85707&src=nha *** Image from Apr 14, 2015 (Posted on Apr 15, 2015 4:32 PM) -- DUST, SMOKE, AND HAZE (0 updated events, 1 new images) -- * http://earthobservatory.nasa.gov/NaturalHazar ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2172 Issue Time: 2015 Apr 16 1346 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2015 Apr 16 1330 UTC Station: GOES13 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 Subscription Service. If you would like to remove a product subscri ...Continue Reading