The EB team posted this today on the FB page:
Wed noon update: the forecast for Friday continues to look unpleasant. What does "early showers, becoming a light steady rain, continuing into Friday night" mean for the EB? It means that the main trail on the Green Belt will be muddy in places, and all the rocks and roots will be slick as snot. The Rudy's climb will be muddy also. City Park could be a real shitshow, with all the recent reports of motorcycle damage. Lots of mud, puddles, and slick rock. Thumper - well, only Thumper knows. The sun could be shining down there, so that the unicorns and elves can paddle about. Plus, we would likely have to skip Walnut completely to avoid trail damage to a heavily used trail, and some very unhappy trail builders.
It sucks, but we'll keep you all posted! If we do have to cancel, we'll perhaps continue to run occasional GB and Thumper rides throughout the spring, and maybe even keep an eye out for an impromptu EB date with clear skies and a following wind.