Space Weather Forecast Headline: Ongoing Chance of isolated Moderate solar flares, otherwise no significant Space Weather expected. 

Analysis of Space Weather Activity over past 24 hours

Solar Activity: Solar activity is currently Low.

There are currently eight sunspot regions on the visible disc. The majority of regions are magnetically simple with little growth observed in recent hours. A bipolar region in the northwest remains of interest, however it is showing a steady decaying trend. Elsewhere, A mature bipolar in the northeast, the largest on the disc, has a large leading spot, with some slight recent development of small peripheral spots to its north and south. Another mature bipolar region in the southwest has a similarly large leading spot, with further waxing/waning of small peripheral spots.

No significant Earth-directed Coronal Mass Ejections (CMEs) were observed in available imagery.

Solar Wind / Geomagnetic Activity: Solar winds, as measured at L1 by ACE, indicated likely ongoing coronal hole fast wind enhancement from CH58/-, located in the southwest disc. Winds speeds were Background to Slightly Elevated, ranging between 380-460km/s initially, before increasing to Elevated levels, reaching 500-570km/s, peaking at 576km/s, after 30/1800 UTC. The Interplanetary Magnetic Field was Weak at first and later, with an extended period of Moderate strength between 30/0400-1930UTC. The Interplanetary Magnetic Field was Moderate at first, before declining to the current Weak values. The north-south component varied, with a tendency for a more prolonged negative spell at the start of the period. 

Geomagnetic activity was generally Quiet to Unsettled (Kp 1-3) with Active periods (Kp 4) 30/1800-31/0000UTC.

Energetic Particles / Solar Radiation: Solar radiation levels were at normal background values.

Four-Day Space Weather Forecast Summary

Solar Activity: Generally Low but with a chance of isolated Moderate solar flares.

Solar Wind / Geomagnetic Activity: No significant Earth-directed CMEs currently feature in the forecast. However, some weak ejecta from minor events over the past few days could cause transitory enhancements to the solar wind through Days 1-2 (31 May to 01 June). 

Mild enhancements to the solar wind are expected during the period, likely related to faster solar wind streams, with slightly-elevated to occasionally elevated winds at times.

Generally Quiet to Unsettled geomagnetic activity is expected, but with a chance of isolated Active periods, and a slight chance of G1/Minor Geomagnetic storm periods, mainly in response to any potential transient CME influences.

Energetic Particles / Solar Radiation: Solar Radiation counts are at normal background levels and currently expected to remain so through the period.