A Gloomy Week Ahead
So far, meteorological summer in the Southeast has been a bit of a disappointment.
We’re halfway through June and, looking at the average temperature anomaly map, we can point out a defined area of below-average temperatures centered over the region in question.
The synoptic pattern has not been in our favor so far this season. Though we’ve had shots of hot, summer-like weather, more often than not we get caught in various blocks that keep the region under the influence of troughing.
Unfortunately for this region (and the beach trip I have planned), model consensus is that this will mostly be the case through the end of June.
This week will feature the development of a Rex Block over the Eastern US.
Refresher: A Rex Block occurs when strong ridging and similarly strong troughing “stack up” on top of each other, with the ridge poleward and the trough equatorward. These can be slow to clear and will linger until either the ridge or the trough weakens.
And that’s exactly what we see in the map above. While a strong ridge builds once again over Eastern Canada (bad news for on-going fires), we’ll see an upper-level low become trapped and linger over the Southeast. According to modeling, this pattern will remain in place until the weekend, briefly clear, and then try to redevelop next week.
The result?
Yet another week of gloomy, cooler than average temperatures for this region.
Rainfall will also be abundant.
A widespread 2+ inches is expected over the region in the next 7 days with maximums along the eastern Gulf Coast, where deeper moisture resides and stronger storms are expected, and the Southern Appalachians, where upslope flow will help to enhance these totals.
While this is great news for some of the region that has recently seen drought develop, it’s a pattern that most summer-lovers can live without.
As mentioned, another upper-level low is currently forecast to develop early next week, leaving the region in a similar state through the end of June. Perhaps July will bring a change? It’s too early to tell.