Message Type: CME

Message ID: 20260502-AL-001

Issue Time: 2026-05-02T16:39Z

Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Parker Solar Probe, STEREO A)
##
## Message Issue Date: 2026-05-02T16:39:43Z
## Message ID: 20260502-AL-001
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.


## Summary:

C-type CME detected by STEREO A / GOES / SOHO.

Start time of the event: 2026-05-02T11:24Z.

Estimated speed: ~603 km/s.

Estimated opening half-angle: 20 deg.

Direction (lon./lat.): 92/16 in Heliocentric Earth Equatorial coordinates.

Activity ID: 2026-05-02T11:24:00-CME-001

Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that the CME may impact Parker Solar Probe and STEREO A (glancing blow). The leading edge of the CME will reach Parker Solar Probe at 2026-05-04T16:21Z (plus minus 7 hours). The flank of the CME may reach STEREO A at 2026-05-06T00:00Z (plus minus 7 hours).

Links to the movies of the modeled event (includes CME: 2026-05-02T11:24:00-CME-001):

https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_anim.tim-vel-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_anim.tim-den-Stereo_A.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_ENLIL_CONE_STA_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260502_171800_2.0_ENLIL_CONE_PSP_timeline.gif


## Notes:

This CME event (2026-05-02T11:24:00-CME-001) is associated with C4.0 flare with ID 2026-05-02T10:44:00-FLR-001 which peaked at 2026-05-02T11:04Z.


SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s

URL: View Details

GIFs:

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