it wasn't supposed to snow until the next day
...and I heard they closed the trail the following day and reopened the day after, but that is rumor only. That's why I say walking in April means being prepared for unexpected weather: snow, rain, or heat...I've heard stories of all three. On some thread somewhere I posted the pictures of my first two days: clear but overcast in SJPdP with reports snow was due the next day on the mountain. Misty at the start, then the storm arrived early with snow and ice, then clear in Roncesvalles, and by morning RV was covered in snow and ice.