Space Weather Message Code: WARK04 Serial Number: 3240 Issue Time: 2017 Jul 01 1641 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jul 01 1640 UTC Valid To: 2017 Jul 01 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: 3239 Issue Time: 2017 Jul 01 0533 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jul 01 0532 UTC Valid To: 2017 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: WATA20 Serial Number: 789 Issue Time: 2017 Jun 30 1518 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jul 01: None (Below G1) Jul 02: None (Below G1) Jul 03: 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: ALTK04 Serial Number: 1986 Issue Time: 2017 Jun 25 0813 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Jun 25 0813 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: WARK04 Serial Number: 3238 Issue Time: 2017 Jun 25 0808 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jun 25 0808 UTC Valid To: 2017 Jun 25 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: WARK04 Serial Number: 3237 Issue Time: 2017 Jun 18 0235 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3236 Valid From: 2017 Jun 17 2051 UTC Now Valid Until: 2017 Jun 18 1400 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: 1985 Issue Time: 2017 Jun 17 2055 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Jun 17 2055 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: 3236 Issue Time: 2017 Jun 17 2051 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Jun 17 2051 UTC Valid To: 2017 Jun 18 0300 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: ALTK05 Serial Number: 1118 Issue Time: 2017 Jun 16 2321 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2017 Jun 16 2320 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: WARK04 Serial Number: 3235 Issue Time: 2017 Jun 16 2128 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3234 Valid From: 2017 Jun 16 0323 UTC Now Valid Until: 2017 Jun 17 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 –