Space Weather Message Code: WARK04 Serial Number: 3131 Issue Time: 2017 Feb 06 2251 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Feb 06 2252 UTC Valid To: 2017 Feb 07 0600 UTC Warning Condition: Onset NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: WARK04 Serial Number: 3130 Issue Time: 2017 Feb 05 1950 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Feb 05 1949 UTC Valid To: 2017 Feb 05 2359 UTC Warning Condition: Onset NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: ALTK04 Serial Number: 1951 Issue Time: 2017 Feb 05 0438 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Feb 05 0438 UTC Synoptic Period: 0300-0600 UTC Active Warning: Yes NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur. Aurora – Aurora may be

Space Weather Message Code: WARK04 Serial Number: 3129 Issue Time: 2017 Feb 05 0436 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Feb 05 0435 UTC Valid To: 2017 Feb 05 1200 UTC Warning Condition: Onset NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: WARK04 Serial Number: 3128 Issue Time: 2017 Feb 04 0535 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Feb 04 0535 UTC Valid To: 2017 Feb 04 1200 UTC Warning Condition: Onset NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: WARK05 Serial Number: 1306 Issue Time: 2017 Feb 03 0741 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Feb 03 0741 UTC Valid To: 2017 Feb 03 1200 UTC Warning Condition: Onset NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power

Space Weather Message Code: WARK04 Serial Number: 3127 Issue Time: 2017 Feb 03 0230 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3126 Valid From: 2017 Jan 31 0755 UTC Now Valid Until: 2017 Feb 03 1200 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: WARK05 Serial Number: 1305 Issue Time: 2017 Feb 02 2236 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Feb 02 2236 UTC Valid To: 2017 Feb 03 0300 UTC Warning Condition: Onset NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power

Space Weather Message Code: WARK04 Serial Number: 3126 Issue Time: 2017 Feb 02 1753 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3125 Valid From: 2017 Jan 31 0755 UTC Now Valid Until: 2017 Feb 03 0300 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: WARK04 Serial Number: 3125 Issue Time: 2017 Feb 02 0540 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3124 Valid From: 2017 Jan 31 0755 UTC Now Valid Until: 2017 Feb 02 1800 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents –