Space Weather Forecast - Discussion
Issued: 2024 Jun 01 0030 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and processed by SpaceWeatherLive.com
Solar activity
24 h Summary
Solar activity reached high levels. Region 3697 (S18E35,
Eki/beta-gamma-delta) produced an impulsive X1.1/2b flare (R3/Strong) at
31/2203 UTC; the largest event of the period. Growth was observed in the
intermediate spot area of Region 3697 and a delta configuration
persisted in the leader spot area. The region also produced an M1.0
flare (R1/Minor) at 31/1120 UTC. C-class flare activity was observed
from Regions 3691 (N25W18, Dkc/beta-delta), 3697, and 3698 (N22E24,
Cri/beta). Region 3691 showed an overall decay trend and magnetic
simplification throughout the period. New Region 3699 (N04W06, Cao/beta)
was numbered and exhibited minor growth since emerging. Region 3698
continued to grow in size and total spot count. Other activity included
instability along a filament centered near S20E10 at around 31/0800 UTC,
but the filament did not lift off. No Earth-directed CMEs were observed.
Forecast
Solar activity is expected to continue at moderate to high levels
through 03 Jun, with occasional M-class flares (R1-R2/Minor-Moderate
Radio Blackouts) and a chance for isolated X-class flare activity (R3
Strong).
Energetic Particles
24 h Summary
The greater than 2 MeV electron flux was normal to moderate and the
greater than 10 MeV proton flux remained at background values.
Forecast
The greater than 2 MeV electron flux is expected to remain at normal to
moderate levels through 03 Jun. There is a chance for a greater than 10
MeV proton event exceeding the S1 (Minor) threshold through 03 Jun,
primarily due to the flare potential of Regions 3691 and 3697.
Solar Wind
24 h Summary
Solar wind parameters were slightly enhanced over the period. Total
field ranged from 1-9 nT. Prolonged periods of southward Bz reaching -7
to -9 nT were observed between 31/0023-0514 UTC. Solar wind speed
averaged near 350 km/s. Phi angle was variable.
Forecast
The solar wind environment is likely to continue to be mildly disturbed
on 31 May. Flanking influences from the 29 May CME is likely to cause
further enhancements late on 31 May and continuing through 01 Jun. A
return to nominal solar wind conditions is expected on 02-03 Jun.
Geospace
24 h Summary
The geomagnetic field was at quiet to unsettled levels, with an isolated
period of G1 (Minor) geomagnetic storming between 31/0300-0600 UTC
following a prolonged period of southward Bz and elevated density.
Forecast
G1-G2 (Minor-Moderate) geomagnetic storming is likely on 01 Jun due to
flanking effects from the 29 May CME. Quiet to unsettled levels are
expected on 02-03 June.