A few years ago a group of us were at Big Bend for a few days. We rode to Presidio one day and were heading to Marfa when the lead rider pulled over. The sky to the NW was dark. 3 of us decided to ride back thru the park to our base in Terlingua. The others went to Marfa. We got to our rooms, showered and were having our first beer when it started to rain. The other soaked rats pulling in a couple hours later. By the time they left Marfa they said there was 2 inches of water on the roads in town. They then had to ride back thru the parks low water crossings to make it to Terlingua. They chose poorly.We kept seeing the sign for years driving past on 16, and one Sunday morning were eating lunch at Alamo Springs and decided to ride out there. We all had summer ventilated jackets on and ended up riding through a half dozen gully washers on the way home. Thankfully my tank bag had a rain cover so at least we kept wallets dry. It was only maybe a 100 mile ride each way but damn we were cold.