:Product: Solar Region Summary :Issued: 2015 Apr 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 111 Issued at 0030Z on 21 Apr 2015 Report compiled from data received at SWO on 20 Apr I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2321 N10W49 090 0080 Cso 14 09 Beta 2322 N11W71 112 0030 Cro 03 03 Beta 2324 N19W16 ...Continue Reading

Space Weather News for April 20, 2015 http://spaceweather.com High-latitude sky watchers should be alert for auroras this week when a solar wind stream and a faint CME are expected to hit Earth's magnetic field in quick succession. NOAA forecasters estimate a 45% to 65% chance of polar geomagnetic storms on April 21-22. At the same time, Earth will be passing through a stream of debris from Comet Thatcher, source of the annual Lyrid meteor shower. Sky watchers are already seeing a smattering of late-night fireballs ...Continue Reading

The following sections have been updated in the past 7 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) -- SEVERE STORMS (1 updated events, 1 new images) -- TORNADO IN NORTHERN ILLINOIS An EF-4 tornado touched do ...Continue Reading

On Monday April 20th SWPC will begin a test of its emergency backup system at 18:00 UT. The test will run until April 21st at 01:00 UT.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help. Forward this Message to a Friend » Subscription Reminder: Y ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 2176 Issue Time: 2015 Apr 20 1143 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 2175 Begin Time: 2015 Apr 16 1330 UTC Yesterday Maximum 2MeV Flux: 6551 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

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