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Prediction Detail

Prediction for CME (2018-07-05T04:39:00-CME-001)

CME Observed Time: 2018-07-05T04:39Z
CME Note: This CME is visible in STEREO A COR2 on the W limb. It starts as a slowly brightening near the streamer before the CME is clearly visible. For this reason the start time can be anywhere between 02:39 (labelled by SIDC) and 13:09 (labelled by SWPC).
CME Shock Arrival Time: 2018-07-10T11:25Z
Observed Geomagnetic Storm Parameters due to CME:

Predicted Arrival Time: 2018-07-10T01:26Z
Prediction Method: SPM
Prediction Method Note:
SPM Model Input Parameters:
Date-time:   2018-07-05 04:39
Initial Shock Speed:  260 km/s
Background Solar Wind Speed: 440 km/s
Duration Time: 0.5 hr (default)

Output Results: The shock will arrive at the Earth at 2018-07-10 01:25:31
Lead Time: 32.05 hour(s)
Difference: 9.98 hour(s)
Prediction submitted by Xinhua Zhao (NSSC CAS) on 2018-07-09T03:22Z
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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