Forecaster summary - Issued 2018-06-26T00:26:36

The high energy electron flux (greater than 2MeV) may again reach high levels through the diurnal cycle on day 1 (26 June). A sharp reduction in the flux is then expected later by day 2 (27 June) due to an anticipated CIR ahead of connection with the high speed stream from negative coronal hole 04, before electron counts increase again through day 3 (28 June).

The corresponding 24-hour electron fluence will be close tothe Active threshold (1e8 integrated pfu) early on day 1 (26 June) and again from late on day 3 and during day 4 (28 and 29 June) as electrons re-accumulate.