Forecaster summary - Issued 2019-07-21T00:14:09

The past eleven days have seen the high energy electron flux (greater than 2 MeV) exhibit a clear diurnal variation between high and moderate levels. This will likely continue through this forecast period, albeit with a slow declining trend in peak values most likely. The associated 24 hour electron fluence has remained just below the Active threshold over the last 24 hours, and is likely to continue to do so through the forecast period. However, there is a chance that the electron fluence could rise above the Active threshold if there is significant enhancement to the solar wind speed from coronal hole high speed stream influences.