Space Weather Message Code: WARK05 Serial Number: 1358 Issue Time: 2017 Jun 11 1735 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Jun 11 1733 UTC Valid To: 2017 Jun 11 2100 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: ALTK04 Serial Number: 1983 Issue Time: 2017 Jun 11 1652 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Jun 11 1650 UTC Synoptic Period: 1500-1800 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: 3230 Issue Time: 2017 Jun 11 1434 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jun 11 1434 UTC Valid To: 2017 Jun 11 2100 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: 787 Issue Time: 2017 Jun 04 1010 UTC CANCEL WATCH: Geomagnetic Storm Category G1 Predicted Cancel Serial Number: 786 Original Issue Time: 2017 Jun 03 1844 UTC Comment: A decrease in solar wind enhancement has deminished the potential for G1 (Minor) geomagnetic storms. 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

Space Weather Message Code: WATA20 Serial Number: 786 Issue Time: 2017 Jun 03 1844 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jun 04: G1 (Minor) Jun 05: None (Below G1) Jun 06: None (Below G1) 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: ALTK04 Serial Number: 1982 Issue Time: 2017 Jun 03 1646 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Jun 03 1645 UTC Synoptic Period: 1500-1800 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: 1357 Issue Time: 2017 Jun 03 1332 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Jun 03 1330 UTC Valid To: 2017 Jun 03 2100 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: 3228 Issue Time: 2017 Jun 03 1208 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jun 03 1210 UTC Valid To: 2017 Jun 03 1800 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: 1981 Issue Time: 2017 May 30 0601 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 May 30 0559 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: 3227 Issue Time: 2017 May 30 0330 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 May 30 0330 UTC Valid To: 2017 May 30 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