Discover and read the best of Twitter Threads about #pvss

Most recents (1)

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).
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*
Read 6 tweets

Related hashtags

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!