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Prediction for CME (2024-08-08T20:00:00-CME-001)

CME Observed Time: 2024-08-08T20:00Z
iSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/32639/-1
CME Note: Halo CME first seen by SOHO LASCO C2 beginning at 2024-08-08T20:00Z, as well as in later frames by C3 and STEREO A COR2. The beginning of this event is not seen in STEREO A COR2 due to a data gap from 2024-08-08T19:38Z to 2024-08-08T22:53Z. The source of this CME is an X1.3 class flare from AR 3777 (S05W25) that peaked at 2024-08-08T19:36Z. This flare can be seen clearly in SDO AIA 94 and 131, along with an EUV wave seen in SDO AIA 193 and 211. Resulting field line opening is also visible in SDO AIA 171 and GOES SUVI 284. The arrival of this CME (or the combined front of this CME and 2024-08-08T05:30Z CME) is possibly seen around 2024-08-11T12:00Z. This weak arrival signature is characterized by a gradual increase of solar wind speed to around 510 km/s and rotation of magnetic field components, with Bz eventually reaching -18 nT. ~2024-08-11T12:00Z is likely the start of an interaction region or the sheath between the previous ICME arriving on 2024-08-10 and this CME. 2024-08-12T07:44Z is likely to be the arrival of the flux rope of this CME. Note that there is no shock in this arrival due to the interaction with the previous CME (courtesy of Carlos Peres Alanis, LASSOS team).
CME Shock Arrival Time: 2024-08-11T12:00Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2024-08-12T00:02Z (-7.0h, +7.0h)
Predicted geomagnetic storm max Kp range due to CME: 4.0 - 6.0
Prediction Method: WSA-ENLIL + Cone (NASA M2M)
Prediction Method Note:
## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Parker Solar Probe, STEREO A, Lucy, Missions Near Earth)
##
## Message Issue Date: 2024-08-09T16:59:21Z
## Message ID: 20240809-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:

S-type CME detected by STEREO A / SOHO. 

Start time of the event: 2024-08-08T20:00Z.

Estimated speed: ~497 km/s.

Estimated opening half-angle: 45 deg.

Direction (lon./lat.): 1/2 in Heliocentric Earth Equatorial coordinates.

Activity ID: 2024-08-08T20:00:00-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 this CME may affect Parker Solar Probe, STEREO A, and Lucy (minor impact).  The leading edge of the CME will reach Parker Solar Probe at 2024-08-11T00:53Z, STEREO A at 2024-08-11T13:46Z, and Lucy at 2024-08-12T09:00Z (plus minus 7 hours). 

The simulation also indicates that the CME may impact NASA missions near Earth. Simulations indicate that the leading edge of the CME will reach NASA missions near Earth at about 2024-08-12T00:02Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 4-6 (below minor to moderate).
   
  
Links to the movies of the modeled event (includes CME: 2024-08-08T20:00:00-CME-001):

http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_anim.tim-den-Stereo_A.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_anim.tim-vel-Stereo_A.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_ENLIL_CONE_PSP_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_ENLIL_CONE_STA_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20240809_015300_2.0_ENLIL_CONE_Lucy_timeline.gif


## Notes: 

This CME event (2024-08-08T20:00:00-CME-001) is associated with X1.3 flare from AR 3777 (S04W23) with ID 2024-08-08T19:01:00-FLR-001 which peaked at 2024-08-08T19:35Z (see notifications 20240808-AL-002, 20240808-AL-003).


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


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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.
Lead Time: 43.02 hour(s)
Difference: -12.03 hour(s)
Prediction submitted by Melissa Kane (M2M) on 2024-08-09T16:59Z
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