Space Weather Message Code: WARK04 Serial Number: 3038 Issue Time: 2016 Oct 31 0855 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3037 Valid From: 2016 Oct 28 0740 UTC Now Valid Until: 2016 Oct 31 2300 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: 3037 Issue Time: 2016 Oct 30 2258 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3036 Valid From: 2016 Oct 28 0740 UTC Now Valid Until: 2016 Oct 31 0900 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: 3036 Issue Time: 2016 Oct 30 1154 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3035 Valid From: 2016 Oct 28 0740 UTC Now Valid Until: 2016 Oct 30 2300 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: 1271 Issue Time: 2016 Oct 30 0222 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2016 Oct 30 0222 UTC Valid To: 2016 Oct 30 0900 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: 3035 Issue Time: 2016 Oct 29 2256 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3034 Valid From: 2016 Oct 28 0740 UTC Now Valid Until: 2016 Oct 30 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: WARK04 Serial Number: 3034 Issue Time: 2016 Oct 29 1141 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3033 Valid From: 2016 Oct 28 0740 UTC Now Valid Until: 2016 Oct 29 2300 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: 1270 Issue Time: 2016 Oct 29 0552 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1269 Valid From: 2016 Oct 28 2015 UTC Now Valid Until: 2016 Oct 29 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 60 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK05 Serial Number: 1048 Issue Time: 2016 Oct 29 0429 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Oct 29 0428 UTC Synoptic Period: 0300-0600 UTC Active Warning: Yes 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 grid fluctuations can occur.

Space Weather Message Code: ALTK05 Serial Number: 1047 Issue Time: 2016 Oct 29 0214 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Oct 29 0212 UTC Synoptic Period: 0000-0300 UTC Active Warning: Yes 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 grid fluctuations can occur.

Space Weather Message Code: WARK05 Serial Number: 1269 Issue Time: 2016 Oct 28 2015 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2016 Oct 28 2015 UTC Valid To: 2016 Oct 29 0600 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