Forecaster summary - Issued 2021-03-24T00:12:11

The high energy electron flux (greater than 2 MeV) is expected to be at predominantly high levels to start, with just temporary falls below the threshold, but likely to see a more general downward trend from day 2 (25th) as the current coronal hole high speed stream slowly wanes. The next high speed stream event (from coronal hole 37) is likely to impact Earth just outside this forecast period.

Current active levels of fluence are expected to persist through much of the period, but with a decreasing trend from day 2. There is a slight chance of very active levels on day 1 (24th). Current REFM data is over-forecasting fluence values, but its slow downward trend from day 2 is accepted.