Countdown To Fall Weather Underway.
What A Crazy Year This Has Been So Far. U.S. GFS 500 MB (18,000' MSL) Forecast. Valid At Noon MDT Tuesday, September 1, 2020. U.S. GFS 500 MB (18,000' MSL) Wind Forecast. Valid At Noon MDT Tuesday, September 1, 2020. Changes Blowin In The Wind. That heading is literal as the Jet Stream is starting to get active once again. Computer models forecast a mid and upper-level trough of low pressure to dive southeastward out of the Pacific Northwest and into the Four Corners area by Tuesday. The GFS wants to open up a closed low and move it across the state. The European and Canadian models drop it further back to the west into Arizona and stall it. Either way, our chances for cooler and wetter weather are going to increase the first to middle of the upcoming work week. As we head into the meteorological fall (begins Tuesday) the Jet Stream will increasingly become more active and dig further and further to the south. Eventually displacing the summer heat ridge that has baked us all s