The lower level weather is being driven by what's going on in the upper level of the atmosphere. Today, that includes a large ridge of high pressure over the western half of the country and a fairly substantial trough along and east of the Mississippi River.
|The American GFS model shows a large eastern U.S. trough and major upper level ridge over the western U.S. this evening. These features exist at about 30,000' up in the atmosphere. (PivotalWx)|
|An animation through the work week of the same level, from the same model, as above. Notice the trough exits east as the upper level patter becomes more "zonal." Towards the end of the loop, more wind energy is poised to move across the Mid-South late in the week. Can't view the loop? Click here. (PivotalWx)|
|An animation of 5,000' temperature anomalies (departures from normal) through the upcoming work week indicate colder then average air (blues) shifting east early in the week as warmer than average temperatures (red) seep across the southern U.S. The coldest air this week remains bottled up to our north. Can't view the loop? Click here. (PivotalWx)|
Next weekend, the pattern becomes a bit more active as upper level energy moves in from the west and causes the upper level patter to "buckle" a bit, resulting in a bit stronger weather systems and likely some higher rain chances a week out. Timing of these is difficult, but the overall pattern suggests a bit more active weather. We'll keep an eye on it for you!
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