Space Weather Message Code: ALTK04 Serial Number: 2013 Issue Time: 2017 Nov 07 0859 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Nov 07 0859 UTC Synoptic Period: 0600-0900 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: WARK05 Serial Number: 1431 Issue Time: 2017 Nov 07 0746 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Nov 07 0745 UTC Valid To: 2017 Nov 07 1500 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: 3360 Issue Time: 2017 Nov 07 0316 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Nov 07 0315 UTC Valid To: 2017 Nov 07 1500 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: WATA20 Serial Number: 806 Issue Time: 2017 Nov 06 1923 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Nov 07: G1 (Minor) Nov 08: G1 (Minor) Nov 09: 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: WATA20 Serial Number: 805 Issue Time: 2017 Nov 05 1457 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Nov 06: None (Below G1) Nov 07: G1 (Minor) Nov 08: 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

Space Weather Message Code: WATA20 Serial Number: 804 Issue Time: 2017 Nov 04 1759 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Nov 05: None (Below G1) Nov 06: None (Below G1) Nov 07: 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.

Space Weather Message Code: WARK04 Serial Number: 3359 Issue Time: 2017 Nov 03 0824 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3358 Valid From: 2017 Nov 03 0001 UTC Now Valid Until: 2017 Nov 03 1500 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: ALTK04 Serial Number: 2012 Issue Time: 2017 Nov 03 0233 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Nov 03 0233 UTC Synoptic Period: 0000-0300 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: 3358 Issue Time: 2017 Nov 03 0003 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Nov 03 0001 UTC Valid To: 2017 Nov 03 0900 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: 3357 Issue Time: 2017 Oct 26 1255 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3356 Valid From: 2017 Oct 24 1216 UTC Now Valid Until: 2017 Oct 27 0600 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 –