Here's what it looked like yesterday afternoon. This morning, nothing but slightly damp ground. Our ground here must be more permeable than I thought. Presumably that's why there's so much green stuff trying to take over the fences and the down-spout on the rain gutter.
Weather Underground says we got about 22 mm of rain yesterday. That's something like 20% of Fernley's annual average rainfall. No wonder it didn't soak in immediately.