Well I've never seen a thunderstorm like yesterday, at least not in person. Constant flashing pretty much in the sky, it was practically daylight at times. Went on for quite some time too. I ended up turning off both modems although they got close to 2880 ES (no SES) on the downstream. SNRM changes, which my DLM programs did to both modems due to the high amount of errors, didn't make much difference. DLM hasn't intervened this morning yet and assuming I did exceed the MTBE red threshold then my guess is that it may have flagged this as an 'area wide event'... at least I hope so anyway. I'm guessing it was the rather unusual lightning, even from a distance, which caused the huge amount of ES as previously rain alone hasn't caused a spike in ES.