Tuesday, May 31, 2016

Summer Begins Tomorrow

Despite my grumblings about frustrating forecasting of hit-and-miss convection, it's been a pretty good May in the Salt Lake Valley.  Any time you can make it until late May with predominantly green foothills you have to be happy.

That's about to change.

Tomorrow marks the first day of meteorological summer, which covers June, July, and August (sorry astronomers, your seasonal definitions based on solstices and equinoxes are LAME and not used by meteorologists).

Not only is tomorrow the first day of summer, but it also will mark a warmup that marks entry into the hottest stretch of weather that we've had all year.  As can be seen in the water vapor image and GFS analysis for 1200 UTC this morning, a high amplitude ridge lurks along the Pacific coast and is moving slowly eastward.

Although we've seen some days in the 80s this year, and a max of 88 on May 14, it looks like we will eclipse 90 later in the week and see a sustained stretch of summer-like temperatures.

For those of you looking for late season turns, you'd better get on it ASAP.  We'll probably see a loss of 2 inches of snowpack water equivalent a day with a warm pattern like this.

Oh the humanity!


  1. Enjoying your blog as always - please can you comment on the pending Geophysical Research article on snowpack changes? Mentioned on KUER today 5/31

  2. The convection wasn't so hit or miss in Texas... I was flying out of DFW on May 31 and delayed by a cluster of storms large enough to cover the entire state of Utah (really very little exaggeration here). The amount of rain and lightning was pretty impressive. There was even some CG lightning in the stratiform portion of the storm during lighter rainfall, something I don't fully understand and certainly don't often see here.

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