Another Trough Next Week; Cooler Than Average Temperatures Likely

Figure 1. GFS 500 millibar height and anomaly forecast for Wednesday, showing a digging trough. Image credit: Weatherbell
Figure 1. GFS 500 millibar height and anomaly forecast for Wednesday, showing a digging trough. Image credit: Weatherbell

Another unusually strong upper-level trough (for this time of year) is going to carve itself out over the Central and East U.S. mid to late week next week — something that has been common place this summer (see figure 1).

Figure 2. CPC 6 – 10 day temperature outlook valid August 22 – 26. Image credit: Pivotal Weather

The result of this trough digging in is going to be cooler than average temperatures for East Texas, Much of Louisiana, Mississippi and Alabama, and North Florida (see figure 2). To be more specific, temps could drop up to 10 degrees (F) below average.

Above average precipitation is also likely across the Southeast, which will be on the east side of the trough.

The trough should remain in place into next weekend, keeping the cooler/wetter pattern in place.

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Caleb Carmichael
Caleb Carmichael

Caleb is the owner of Gulf Coast Storm Center. He is currently an undergraduate student at Mississippi State University majoring in geoscience with a concentration in broadcast and operational meteorology. While not yet a meteorologist, Caleb has been providing weather updates, news, and analysis for the Gulf Coast since 2014.

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