Forecaster summary - Issued 2019-05-08T00:27:41

High energy electron flux (greater than 2MeV) is likely to exceed the high (1e3 pfu) threshold on day 1 although the onset of the high speed stream from coronal hole 13, could initially reduce the flux due to geomagnetic enhancements. The diurnal peaks are then forecast to follow a flat trend through days 2 to 4.

Corresponding 24-hour integrated fluence values are forecast to remain below the Active (1e8 integrated pfu) threshold through the period as a reflection of the predominately benign solar wind conditions, but may rise later in the period.