Memorial Day Weekend Weather

In General:

The weather across the western U.S. this Memorial Day Weekend won’t be all bad, but it would be hard to call it “good”.

One large, cold  trough of Low-pressure will move east of the Rockies Friday. Thursday’s jet stream map below, showing how far south the Low & the jet have been this week.

Click map for loop of jet stream: Thursday afternoon thru Sunday night.  Maps are courtesy of NexLab.

Now, click on the map above to see the jet stream pattern through Sunday night, May 26th. Once the current Low exits, another Low-pressure moves inland over the Pacific Northwest, which will take another dive towards the Southwestern U.S. The weather pattern the next few days  reminds me of a softball pitcher winding up……

That keeps the temps seasonably cooler through Memorial Day over the West, along with showers, thunderstorms and some mountain snow in the picture.

Yes I said, “Snow”!

More cold and more snow for late May 2019. Click Map below for a loop of where, when and how much snow the Western mountains are forecast to get.

Map below shows total accumulation through Sunday afternoon.

Click map for snow accumulation through Sunday evening. Loop shows 6-hr. increments of total snow accumulation. Maps courtesy of CAIC.

In Western Wyoming:

Moisture will again be pulsing across western Wyoming this weekend. Expect showers, heaviest rain looks to be coming on Friday. Maybe another dousing Saturday afternoon. Scattered showers for Sunday & Monday, a little less wet?

Check the forecast for Jackson Hole & the Tetons for more detailed & updated info.

Click on map below for the forecast precipitation, for each 3-hour increment, from Thursday afternoon to Monday afternoon, for the Northwest portion of the U.S.
Find your breaks to get outside!

This map shows precip from 12Z to 15Z Friday (that is 6AM to 9AM MDT). Click map to continue loop through Monday. Thanks again NexLab!

Post by meteorologist Jim Woodmencey