Wednesday, May 25, 2022

Last Week Of May

View of the Catalinas at 7:25 am MST this morning - note large wasp checking out the camera. The air here is quite clean compared to Phoenix. Below shows view from Phoenix looking east toward the Superstition Mountains.

May is going out with little chance of any rainfall here and with temperatures hoovering around 100 F. Graphic above shows 06 UTC GFS forecast of rainfall across the West through 11:00 pm on May 31st. The 06 UTC GEFS plumes for wind at the airport (below) indicate a windy Memorial Day weekend.

Finally, I took a look at current western US snow pack this morning. Snow water equivalents (SWE) over the Colorado and Green River Basins are below normal, or very much below normal. With Lakes Mead (below) and Powell already at record low levels, the outlook for water supply during the coming few months is quite grim across the Southwest.

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