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MOSWOC high energy electron forecast for geostationary orbit

Forecaster summary - Issued 2022-09-05T12:06:44

The high energy (greater than 2 MeV) electron flux has been moderate to high, due to the recent enhancement from the fast speed streams originating from CH19/+ and CH20/+, recharging the Van Allen belts in electron populations. Flux levels are expected to continue to rise erratically during day 1 (5th), likely remaining above high levels during days 2 to 4 (6th-8th).   

The corresponding 24-hour fluence is expected to continue displaying a rising trend, with a chance of exceeding the Active threshold from day 1 (5th) then expected from day 2 (6th) onward. This is supported the latest Met Office REFM output, although the model is currently slightly under-estimating fluence levels.

 
High Energy Electron Event Forecast
Issued 2022-09-05T12:06:44
Probability of threshold exceedance
 ActiveV.Active
Day 1 40% 1%
Day 2 70% 1%
Day 3 70% 5%
Day 4 70% 5%