CORRECTION: not Gulf but the Pacific Ocean..<quoted text>
Which is why I termed it 'a tad unusual'. In fact, pretty far out on the probability chart. Doesn't mean that it needed AGW or climate change, but it IS more likely if you assume the old standard climate is no longer valid. More moisture from the Gulf getting wrung out as it climbs over Denver or maybe just an unusual weather pattern.
Makes you wonder though. For good reason..
See the sat loop;
Signs point to the tropical Pacific being the source of the abundant moisture, according to the University of Wisconsin’s Cooperative Institute for Meteorological Satellite Studies. From there, the moisture plume was transported northeastward, over Mexico and into Texas, and then northward by upper level winds.