Space Weather Message Code: ALTK04 Serial Number: 1962 Issue Time: 2017 Mar 08 2352 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Mar 08 2351 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: 3167 Issue Time: 2017 Mar 09 1149 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3166 Valid From: 2017 Mar 08 2044 UTC Now Valid Until: 2017 Mar 09 1800 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: WARK04 Serial Number: 3166 Issue Time: 2017 Mar 09 0550 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3165 Valid From: 2017 Mar 08 2044 UTC Now Valid Until: 2017 Mar 08 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 –

Space Weather Message Code: ALTK04 Serial Number: 1962 Issue Time: 2017 Mar 08 2352 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2017 Mar 08 2351 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: 3165 Issue Time: 2017 Mar 08 2326 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3164 Valid From: 2017 Mar 08 2044 UTC Now Valid Until: 2017 Mar 09 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 –

Space Weather Message Code: WARK04 Serial Number: 3164 Issue Time: 2017 Mar 08 2044 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2017 Mar 08 2044 UTC Valid To: 2017 Mar 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: 3163 Issue Time: 2017 Mar 07 2352 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3162 Valid From: 2017 Mar 06 1325 UTC Now Valid Until: 2017 Feb 08 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: WARK04 Serial Number: 3162 Issue Time: 2017 Mar 07 1755 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3161 Valid From: 2017 Mar 06 1325 UTC Now Valid Until: 2017 Mar 07 2359 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: WARK04 Serial Number: 3161 Issue Time: 2017 Mar 07 1145 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3160 Valid From: 2017 Mar 06 1325 UTC Now Valid Until: 2017 Mar 07 1800 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: WARK04 Serial Number: 3160 Issue Time: 2017 Mar 07 0542 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3159 Valid From: 2017 Mar 06 1325 UTC Now Valid Until: 2017 Mar 07 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 –