Space Weather Message Code: WARK04 Serial Number: 3158 Issue Time: 2017 Mar 06 1324 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Mar 06 1325 UTC Valid To: 2017 Mar 06 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: 1960 Issue Time: 2017 Mar 06 0214 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Mar 06 0213 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: 3157 Issue Time: 2017 Mar 06 0210 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Mar 06 0210 UTC Valid To: 2017 Mar 06 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: 1959 Issue Time: 2017 Mar 05 2022 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Mar 05 2022 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: 3156 Issue Time: 2017 Mar 05 1939 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Mar 05 1938 UTC Valid To: 2017 Mar 05 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: WATA20 Serial Number: 774 Issue Time: 2017 Mar 05 0558 UTC CANCEL WATCH: Geomagnetic Storm Category G1 Predicted Cancel Serial Number: 773 Original Issue Time: 2017 Mar 04 2203 UTC Comment: G1 Watch conditions are no longer present. 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

Space Weather Message Code: WARK05 Serial Number: 1318 Issue Time: 2017 Mar 04 2301 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2017 Mar 04 2301 UTC Valid To: 2017 Mar 05 0300 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: WATA20 Serial Number: 773 Issue Time: 2017 Mar 04 2203 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Mar 05: G1 (Minor) Mar 06: None (Below G1) Mar 07: 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: 1958 Issue Time: 2017 Mar 04 2159 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Mar 04 2159 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: 3154 Issue Time: 2017 Mar 04 2146 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Mar 04 2146 UTC Valid To: 2017 Mar 05 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