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CME Scoreboard

CME arrival time predictions from the research community:

The CME scoreboard is part of the the CME Arrival Time & Impact Working Team in the Community-wide International Forum for Space Weather Modeling Capabilities Assessment.

The CME Scoreboard (developed at the Community Coordinated Modeling Center, CCMC) is a research-based forecasting methods validation activity which provides a central location for the community to:
  • submit their forecast in real-time
  • quickly view all forecasts at once in real-time
  • compare forecasting methods when the event has arrived
Using this system:
  • Anyone can view prediction tables
  • Users can enter in your CME shock arrival time forecast after logging in:
    • Registered Users: Begin by finding your CME under the "Active CMEs" section, then click "Add Prediction" and select your forecasting "Method Type" from the list. (Click here to register for an account.)
    • Power Users: If you do not see your CME listed under the "Active CMEs" section, click "Add CME" to get started (Click here to request power user privileges). To enter the actual CME shock arrival time, click "Edit CME" after you are done entering your prediction(s).
  • Click here to see a list of registered methods. If you would like to register your prediction method, please send an email to M. Leila Mays or Yihua Zheng with your model/technique details.
  • Click here for more detailed instructions.
  • To receive periodic announcements and/or automated email notifications when a new CME is added to the CME Scoreboard, please subscribe to our mailing list or send an email to M. Leila Mays with your name and email.

Active CMEs:

No Active CME

Past CMEs:

CME: 2018-02-12T01:25:00-CME-001
Actual Shock Arrival Time: 2018-02-15T07:38Z
Observed Geomagnetic Storm Parameters:
CME Note: This partial halo CME is associated with a long duration C1.5 flare peaking at 1:35Z from AR2699.
Predicted Shock Arrival Time Difference (hrs) Confidence (%) Submitted On Lead Time (hrs) Predicted Geomagnetic Storm Parameter(s) Method Submitted By
2018-02-15T11:59Z (-12.0h, +12.0h) 4.35 90.0 2018-02-12T14:27Z 65.18 Max Kp Range: 3.0 - 4.0
Other (SIDC) Leila Mays (GSFC) Detail
2018-02-15T16:30Z (-6.0h, +6.0h) 8.87 70.0 2018-02-12T16:30Z 63.13 ---- DBM Manuela Temmer (UNIGRAZ) Detail
2018-02-15T06:42Z (-7.0h, +7.0h) -0.93 ---- 2018-02-12T16:33Z 63.08 Max Kp Range: 3.0 - 5.0
WSA-ENLIL + Cone (GSFC SWRC) Mary Aronne (SWRC) Detail
2018-02-14T22:25Z -9.22 ---- 2018-02-12T16:55Z 62.72 ---- SARM Marlon Nunez (UMA) Detail
2018-02-14T09:00Z -22.63 ---- 2018-02-12T19:21Z 60.28 Max Kp Range: -- - 5.0
WSA-ENLIL + Cone (NOAA/SWPC) Leila Mays (GSFC) Detail
2018-02-15T06:24Z (-4.0h, +4.0h) -1.23 ---- 2018-02-13T07:00Z 48.63 ---- EAM (Effective Acceleration Model) Evangelos Paouris (UoA) Detail
2018-02-16T09:00Z (-7.0h, +7.0h) 25.37 70.0 2018-02-13T07:04Z 48.57 Max Kp Range: 3.0 - 5.0
Other (NSSC SEPC) Jingjing Wang (NSSC SEPC) Detail
2018-02-14T18:00Z -13.63 ---- 2018-02-13T09:57Z 45.68 ---- WSA-ENLIL + Cone (Met Office) Met Office (Met Office) Detail
2018-02-15T14:28Z 6.83 ---- 2018-02-13T10:20Z 45.30 ---- ElEvo Tanja Amerstorfer (SRI) Detail
2018-02-14T05:00Z -26.63 ---- 2018-02-13T11:13Z 44.42 ---- WSA-ENLIL + Cone (KSWC) RWC Jeju (KSWC) Detail
2018-02-15T02:18Z -5.33 ---- 2018-02-13T12:10Z 43.47 ---- CAT-PUMA Jiajia Liu (UoS) Detail
2018-02-15T02:16Z (-14.3h, +10.4h) -5.37 81.0 2018-02-13T15:27Z 40.18 Max Kp Range: 2.0 - 4.0
Ensemble WSA-ENLIL + Cone (GSFC SWRC) Michael GreklekMcKeon (CCMC) Detail
2018-02-15T06:09Z -1.48 77.75 --- --- Max Kp Range: 2.75 - 4.6
Average of all Methods Auto Generated (CCMC) Detail
2018-02-16T04:00Z 20.37 ---- 2018-02-15T23:59Z -16.35 Dst min. in nT: -47
Dst min. time: 2018-02-16T16:00Z
Anemomilos WKent Tobiska (SET SWD) Detail

Previous Predictions in 2017

Previous Predictions in 2016

Previous Predictions in 2015

Previous Predictions in 2014

Previous Predictions in 2013

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CCMC Rules of the Road: CCMC requests that users notify the CCMC, CME model/technique developers and submitting forecasters/researchers before performing event and validation studies with data from the CME Arrival Time Scoreboard. It is recommended that such studies be performed with the knowledge and collaboration of developers and submitting forecasters/researchers.

Important Disclaimer Notice

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center ( This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

NASA Official: Dr. Maria Kuznetsova
Curator: Chiu Wiegand