Space Weather Message Code: WARK04 Serial Number: 3640 Issue Time: 2019 Jul 08 2349 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3639 Valid From: 2019 Jul 08 1953 UTC Now Valid Until: 2019 Jul 09 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 –

Space Weather Message Code: WARK05 Serial Number: 1523 Issue Time: 2019 Jul 08 2340 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2019 Jul 08 2339 UTC Valid To: 2019 Jul 09 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

Space Weather Message Code: ALTK04 Serial Number: 2117 Issue Time: 2019 Jul 08 2118 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2019 Jul 08 2059 UTC Synoptic Period: 1800-2100 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: 3639 Issue Time: 2019 Jul 08 1953 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2019 Jul 08 1953 UTC Valid To: 2019 Jul 08 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: WARK04 Serial Number: 3638 Issue Time: 2019 Jul 01 0514 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2019 Jul 01 0511 UTC Valid To: 2019 Jul 01 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: ALTK04 Serial Number: 2116 Issue Time: 2019 Jun 13 2355 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2019 Jun 13 2355 UTC Synoptic Period: 2100-2400 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: 3637 Issue Time: 2019 Jun 13 2348 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2019 Jun 13 2348 UTC Valid To: 2019 Jun 14 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: 3636 Issue Time: 2019 Jun 12 1214 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2019 Jun 12 1213 UTC Valid To: 2019 Jun 12 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: 859 Issue Time: 2019 Jun 09 1327 UTC CANCEL WATCH: Geomagnetic Storm Category G1 Predicted Cancel Serial Number: 858 Original Issue Time: 2019 Jun 08 1757 UTC Comment: Conditions no longer meet Watch criteria. 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

Space Weather Message Code: ALTK05 Serial Number: 1265 Issue Time: 2019 Jun 08 1847 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2019 Jun 08 1840 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.