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Let's discuss the anomalous NATL high latitude SST warming that occured this Summer + the negative SSTA that shifted equatorward. Remarkable seasonal changes that need an explanation.
1⃣hypothesis: The SSTA pattern was aided by enhanced NATL anticyclonic wave breaking (#AWB).
1⃣hypothesis: The SSTA pattern was aided by enhanced NATL anticyclonic wave breaking (#AWB).
We've certainly seen our fair share of #AWB events recently. These atmospheric waves break over & over in the NATL, helping define the mean tropical upper-tropospheric trough (#TUTT), individually comprised of potential vorticity streamers (#PVSs) folding under building ridges.🌊
But while upper-level AWB & PVSs are common in the Summer, 2022 has been rather exceptional as seen in the 200mb vector wind anomalies.
Look between 40-45N/10-40W. Thats a 9-10 m/s ENE vector anomaly when the climatological flow is typically 10-15 m/s *westerly*
Look between 40-45N/10-40W. Thats a 9-10 m/s ENE vector anomaly when the climatological flow is typically 10-15 m/s *westerly*
