Space Weather Message Code: WARK05 Serial Number: 1434 Issue Time: 2017 Nov 07 2304 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1433 Valid From: 2017 Nov 07 0745 UTC Now Valid Until: 2017 Nov 07 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: 1192 Issue Time: 2017 Nov 07 2239 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2017 Nov 07 2238 UTC Synoptic Period: 2100-2400 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: WATA20 Serial Number: 807 Issue Time: 2017 Nov 07 2116 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Nov 08: G1 (Minor) Nov 09: G1 (Minor) Nov 10: G1 (Minor) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT 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: WARK05 Serial Number: 1433 Issue Time: 2017 Nov 07 2015 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1432 Valid From: 2017 Nov 07 0745 UTC Now Valid Until: 2017 Nov 08 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 60 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK06 Serial Number: 455 Issue Time: 2017 Nov 07 1924 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2017 Nov 07 1921 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude

Space Weather Message Code: ALTK05 Serial Number: 1191 Issue Time: 2017 Nov 07 1840 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2017 Nov 07 1835 UTC Synoptic Period: 1800-2100 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: WARK06 Serial Number: 411 Issue Time: 2017 Nov 07 1830 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2017 Nov 07 1830 UTC Valid To: 2017 Nov 07 2100 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid

Space Weather Message Code: WARK05 Serial Number: 1432 Issue Time: 2017 Nov 07 1413 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1431 Valid From: 2017 Nov 07 0745 UTC Now Valid Until: 2017 Nov 07 2200 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: 1190 Issue Time: 2017 Nov 07 1155 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2017 Nov 07 1155 UTC Synoptic Period: 0900-1200 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: WARK04 Serial Number: 3361 Issue Time: 2017 Nov 07 1154 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3360 Valid From: 2017 Nov 07 0315 UTC Now Valid Until: 2017 Nov 07 2100 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 –