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Prediction for CME (2025-11-05T10:53:00-CME-001)

CME Observed Time: 2025-11-05T10:53Z
iSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/42425/-1
CME Note: CME first seen in real time to the E in STEREO A COR2 starting at 2025-11-05T10:53Z. CME is also seen in GOES CCOR-1 as a halo with the bulk to the E. CME was missed by SOHO LASCO C2/C3 in real time due to a scheduled gap between downlink periods. The CME is most likely associated with a long-duration M7.4 class flare from AR 14274 (N24E47) that peaked at 2025-11-05T11:19Z. The flare and associated eruption can be seen across GOES SUVI wavelengths but is best visible in GOES SUVI 304.
CME Shock Arrival Time: 2025-11-07T04:48Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2025-11-07T09:00Z (-12.0h, +12.0h)
Confidence that the CME will arrive: 60.0%
Predicted geomagnetic storm max Kp range due to CME: 5.0 - 7.0
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: 2025-11-06T14:45
Radial velocity (km/s): 1000
Longitude (deg): 27 E
Latitude (deg): 6 N
Half-angular width (deg): 41 

Notes: 
Space weather advisor: Stuart Webster

Lead Time: 27.12 hour(s)
Difference: -4.20 hour(s)
Prediction submitted by Met Office (Met Office) on 2025-11-06T01:41Z

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