Hey @TheEdVerse, just a quick question, as I've been struggling with sources in finding an answer to whether the nation of Thay is supposed to be a cold or hot country?
It has, or used to have a nearby glazier, but also volcanoes and deserts.
Its climate seems a little confusing.

— MadHatterHimself (@Madhatterhim) January 5, 2019

Thay has always been a volcanic country, which up until the Spellplague kept its interior (the Plateau of Thay) lush and fertile (real-world Mediterranean to a little warmer), with the coastal cities climatically akin to… 2/9) …Mediterranean due to the moderating effect of the Sea of Fallen Stars. It’s depicted this way in the earliest (2e) Realmslore. In the Spellplague’s tumult, the Plateau soared in height, pushed up amid much volcanic…#Realmslore

— Ed Greenwood (@TheEdVerse) January 6, 2019

…tumult (the glaciers melted, several active volcanos split Thaymount, and ashfalls and the heat and the water boiling off to leave parched badlands and deserts. Ash and smoke still darken the skies over Thay, … 4/9) …making the climate cold (summertime frosts, formerly hot winds in the Thayan mountains now icy). [[These climatic effects of large volcanic eruptions happen in our real world, too; see Krakatoa and Tambora.]]#Realmslore

— Ed Greenwood (@TheEdVerse) January 6, 2019

So Thay’s crop exports have shrunk to nigh nothing. Szass Tam’s undead don’t need to eat, and Thay’s outposts (not just trading enclaves, but all the private holdings all over the Heartlands owned by individual Thayans, 6/9) …from Red Wizards to far-traveled Thayan traders) provide food for Thay’s coastal ports, which are still habitable, just not as warm as they were. So the short answer is: Thay’s climate IS a little confusing. The even…#Realmslore

— Ed Greenwood (@TheEdVerse) January 6, 2019

8/9) …always be cooler than it once was (unless it sinks back towards sea level) and restoring the fertility of the land may take centuries, if it happens at all. The Red Wizards working together under firm and disciplined…#Realmslore

— Ed Greenwood (@TheEdVerse) January 6, 2019

9/9) …leadership could spell-shift a lot of the ash, get rivers flowing again, and so on—but Szass Tam seems uninterested in such an effort. Which would cause fresh climatic tumult as it was happening, too!
So there you have it. :}#Realmslore

— Ed Greenwood (@TheEdVerse) January 6, 2019

This kind of info is why it would be nice to get a comprehensive guide to the Realms instead of just the little dribbles released in the published adventures. Full agreement from me. The FRCS (3rd edition hardcover Forgotten Realms Campaign Setting) is set pre-Spellplague, but it's the most comprehensive we have. Bear in mind that a truly comprehensive guide would run to over 20 thick hardcovers, yet'd be out of date and skimpy.

— Ed Greenwood (@TheEdVerse) January 6, 2019

Alright, so I was not going completely mad while reading about.
While reading, Thay after the Spellplague very much had a feeling as though it was similar to a post-apocalyptic, almost nuclear-winter style landscape.
Thanks for the input. Heh. No, you weren't going mad. You were just sharing the experience of folk in the Realms: rumors/bad communications, Spellplague disasters reports (and exaggerated, sometimes) seemingly everywhere, and no trustworthy overview. Hmm, sounds like our real world, too. ;}

— Ed Greenwood (@TheEdVerse) January 6, 2019