Auroral Power

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #17-38 2017 September 17 at 8:11 p.m. MDT (2017 September 18 0211 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For September 11-17
Solar radiation storms reached S1 (Minor) levels on 11-14 Sep, S2 (Moderate) levels on 11-12 Sep and S3 (Strong) levels on 11 Sep. This activity was due to effects from a R3 (Strong) radio blackout observed on 10 Sep.
Geomagnetic storms reached G1 (Minor) levels on 12-16 Sep and G2 (Moderate) levels on 14-16 Sep. The G1 activity on 12-13 Sep was related to CME effects while the G1-G2 activity on 14-16 Sep was related to CH HSS effects.
Outlook For September 18-24
R1-R2 (Minor-Moderate) radio blackouts are possible on 23-24 Sep due to the return of old active Region 2673.
S1-S2 (Minor-Moderate) solar radiation storms are possible on 23-24 Sep with any significant flare activity after the return of old Region 2673.
Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions. More information is available at SWPC’s Web site swpc.noaa.gov Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: WARK06 Serial Number: 403 Issue Time: 2017 Sep 16 0533 UTC
WARNING: Geomagnetic K-Index of 6 expected Valid From: 2017 Sep 16 0532 UTC Valid To: 2017 Sep 16 0900 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: ALTK06 Serial Number: 447 Issue Time: 2017 Sep 16 0533 UTC
ALERT: Geomagnetic K-index of 6 Threshold Reached: 2017 Sep 16 0533 UTC Synoptic Period: 0300-0600 UTC Active Warning: Yes NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: WARK06 Serial Number: 402 Issue Time: 2017 Sep 15 0244 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected Extension to Serial Number: 401 Valid From: 2017 Sep 14 1555 UTC Now Valid Until: 2017 Sep 15 0900 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 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: ALTK06 Serial Number: 446 Issue Time: 2017 Sep 15 0244 UTC
ALERT: Geomagnetic K-index of 6 Threshold Reached: 2017 Sep 15 0240 UTC Synoptic Period: 0000-0300 UTC Active Warning: Yes NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: WARK06 Serial Number: 401 Issue Time: 2017 Sep 14 2057 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected Extension to Serial Number: 400 Valid From: 2017 Sep 14 1555 UTC Now Valid Until: 2017 Sep 15 0300 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 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: ALTK06 Serial Number: 445 Issue Time: 2017 Sep 14 1802 UTC
ALERT: Geomagnetic K-index of 6 Threshold Reached: 2017 Sep 14 1759 UTC Synoptic Period: 1500-1800 UTC Active Warning: Yes NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: WARK06 Serial Number: 400 Issue Time: 2017 Sep 14 1553 UTC
WARNING: Geomagnetic K-Index of 6 expected Valid From: 2017 Sep 14 1555 UTC Valid To: 2017 Sep 14 2100 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Space Weather Message Code: WARK06 Serial Number: 399 Issue Time: 2017 Sep 13 0107 UTC
WARNING: Geomagnetic K-Index of 6 expected Valid From: 2017 Sep 13 0105 UTC Valid To: 2017 Sep 13 0600 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate
NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft – Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio – HF (high frequency) radio propagation can fade at higher latitudes. Aurora – Aurora may be seen as low as New York to Wisconsin to Washington state. Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #17-37 2017 September 11 at 2:45 a.m. MDT (2017 September 11 0845 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For September 4-10
R1 (Minor) radio blackouts were observed on 04-09 September, R2 (Moderate) radio blackouts were observed on 04, 07, 08 September, and R3 (Strong) radio blackouts were observed on 06, 07, 10 September due to solar flare activity from active sunspot Region 2673.
S1 (Minor) solar radiation storm levels were observed on 05-09 Sep and 10 September, S2 (Moderate) solar radiation storm levels were observed on 05-08 September and 10 September, and S3 (Strong) solar radiation storm levels were observed on 10 September due to significant flare activity from Region 2673.
G1 (Minor) geomagnetic storm levels were observed on 04 September due to coronal hole high speed stream activity.
G4 (Severe) geomagnetic storm levels were observed on 07 September while G1-G4 (Minor-Severe) storm levels were observed on 08 September due to a combination of activity from the arrival of the 04 and 06 September coronal mass ejections.
Outlook For September 11-17
R1-R2 (Minor-Moderate) radio blackouts are expected on 11 September due to the potential for significant flare activity from Region 2673 as it rotates further around the west limb.
S3 (Strong) solar radiation storm levels are expected to continue on 11 September and slowly decrease below S1 (Minor) storm levels by 15 September.
G1 (Minor) geomagnetic storm levels are likely from 13-16 September with G2 (Moderate) levels likely on 13 September due to recurrent coronal hole high speed stream activity.
Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions. More information is available at SWPC’s Web site swpc.noaa.gov Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to: pss.swpc.noaa.gov. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact us: pss.help@noaa.gov.