Monday, July 26th, 3:15 P.M.
We managed to stay a bit sunnier than some of our computer models advertised, so temperatures are making a run at 90 degrees. Most of us will come up shy of 90, but it’s still plenty warm out there. Clouds are associated with a bit of a monsoonal surge coming out of the Southwest. East of the Cascades, we’ve been watching scattered showers and isolated storms. Expect to see mid and upper level clouds streaming in between this evening and Tuesday. Depending on cloud cover, high temps should range between the mid to upper 80s Tuesday afternoon.
A pretty impressive high pressure system is building over the Great Basin and the Intermountain West. This system will inch westward between mid to late week, causing temperatures to soar back into the 90s. We’ve trended our high temperature forecast up a tad, with the hottest days likely being Thursday-Saturday. Highs will range between the mid to upper 90s, with a few spots potentially hitting 100 on Friday. Overnight lows will only fall into the mid to upper 60s. The placement of the heat ridge will also cause our upper level wind to turn out of the south (instead of southwest). This will likely pull some smoke in from California, causing skies to turn hazy. Most smoke should be well above the surface, so air quality shouldn’t take a hit.
High pressure will back off by the end of the weekend, allowing onshore flow to strengthen and temperatures to dip back into the 80s. Overnight lows will turn cooler as well.