The strong and fast solar winds today may be the cause of the Dark Count spike seen on EVE. Solar winds near 800 km/s at ACE:

[link to www.swpc.noaa.gov]

ACE Protons look jumpy today, too:

[link to www.swpc.noaa.gov]

NOAA has also issued an alert for high electron flux readings-

Space Weather Message Code: ALTEF3
Serial Number: 2068
Issue Time: 2013 Aug 16 1816 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Aug 16 1800 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
[link to www.swpc.noaa.gov]

GOES Electron Flux plot:

[link to www.swpc.noaa.gov]