Via http://solarham.net/bulletins.htm
Space Weather Message Code: ALTEF3
Serial Number: 2834
Issue Time: 2018 Sep 01 0901 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2833
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 31634 pfu
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Page shows all alerts issued in August/September.
The Maximum 2MeV Flux readings were a bit high, and gradually started to fall in the following days.
The last alert issued
Space Weather Message Code: WARK05
Serial Number: 1494
Issue Time: 2018 Sep 11 1110 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1493
Valid From: 2018 Sep 11 0423 UTC
Now Valid Until: 2018 Sep 11 2100 UTC
Warning Condition: persistence
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.