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CME Scoreboard: Prediction Detail

Prediction for CME (2024-07-29T13:25:00-CME-001)

CME Observed Time: 2024-07-29T13:25Z
iSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/32317/-1
CME Note: Wide CME visible to the west in SOHO LASCO C2/C3 and STEREO A COR2. The source is the M8.7 flare peaking at 2024-07-29T12:55Z from AR 3762 with associated dimming, EUV wave, and opening field lines best seen in SDO AIA 193. The eruption is also visible in STEREO A EUV imagery. Arrival signature characterized by an amplification of magnetic field components with Btotal increasing from 1nT at 2024-08-01T16:47Z to 12nT at 17:33Z. There is a subsequent minor increase in solar wind speed from around 400 km/s to ~460 km/s at 17:00Z with an increase observed in density starting around 16:00Z. This weak interplanetary shock may be associated with the combined arrival of CMEs 2024-07-29T02:00Z, 2024-07-29T02:12Z, and/or 2024-07-29T13:25Z.
CME Shock Arrival Time: 2024-08-01T16:47Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2024-08-01T14:00Z (-12.0h, +12.0h)
Confidence that the CME will arrive: 60.0%
Predicted geomagnetic storm max Kp range due to CME: 3.0 - 6.0
Prediction Method: WSA-ENLIL + Cone (Met Office)
Prediction Method Note:

Met Office ENLIL settings.
ENLIL version: 2.7
Resolution: medium-res (512x60x180) (X1=0.1-1.7/uniform X2=30.-150./uniform X3=0.-360./uniform)
Ambient settings: a3b2-sa1
WSA version: 4.5
GONG: mrzqs
Note that this arrival time forecast is based on the simulation but is then adjusted by a human-in-the-loop.

Please specify following CME input parameters.
Time at 21.5Rs boundary: 2024-07-29T18:32Z
Radial velocity (km/s): 701
Longitude (deg): 37W
Latitude (deg): 28N
Half-angular width (deg): 48

Notes: Wide, multi-front CME from M8.7 flare of AR3672. Difficult analysis with StA imagery very poor. Glancing impact most likley. 
Space weather advisor:Kirk Waite

Lead Time: 48.62 hour(s)
Difference: 2.78 hour(s)
Prediction submitted by Met Office (Met Office) on 2024-07-30T16:10Z

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