MTB4U wrote on 09/29/18 at 2:20pm:
Yes, thanks, this is what is confusing me.
(You need to Login or Register to view media files and links) Pick the time period, zoom the map, pick the gauge closest to the trail and look at the rainfall amount.
Also consider the accumulated amount over the past week. Small amounts of rain will not affect a generally dry trail and will dry quickly, especially in the summer.
If the weather has been rainy without a couple of days to dry, especially in the cooler and less sunny months, then you should expect wet or damp conditions.
Weather underground also has a handy feature on the radar map tab called 'total precipitation'. This will give you a general idea of where and how much rain has fallen in a given area as storms pass. Be aware it only gives the amount for the last 1 day period.
(You need to Login or Register to view media files and links) This is a reliable way to assess rainfall amounts near trails, but it does not guarantee a trail that normally closes during wet conditions will be open (ex. Beatty, Sherman Branch, Whitewater center, Springs, etc..). It's a subjective science and trail management makes those decisions. In such cases, most experienced riders have a backup, in case of questionable conditions. For example, Rocky River trail, Uwharrie, etc.. Such trails have good drainage, its on the honor system and almost never close. However, if its obviously wet or has rained significantly, better to take a rest day. Experience is the best teacher.