[3][5] The border between the South and North White Carniolan dialects is rather clear; it was already defined by Tine Logar.

Notable settlements include Stražnji Vrh, Črnomelj, Ručetna Vas, Semič, Gradac, Metlika, and Radovica.

Differentiation between the North and South White Carniolan dialects occurred in the 15th and 16th centuries, when the Ottomans started attacking Bosnia and Dalmatia.

Therefore, today the White Carniolan dialect is split based on how much influence it received from Serbo-Croatian.

[2] The dialect lost the difference between high- and low-pitched accent, both on long and short vowels, which are still differentiated.

It also underwent six accentual changes, which are also present in South White Carniolan: *ženȁ → *žèna, *məglȁ → *mə̀gla, *sěnȏ / *prosȏ → *sě̀no / *pròso, *visȍk → vìsok, and *kováč → *kòvač.

The Slovenian linguist Jože Toporišič even states that there was no early mixing with Croatian in this dialect.

Syllabic *ł̥̄ and non-final *ł̥̀ evolved into oːu̯ or uː in the west, and, apart from Metlika and north of that, where oːu̯ is pronounced, ọː in the east.

[10] The vocabulary of the Črnomelj microdialect was collected by Janez Kramarič and published in Slovar črnomaljskega narečnega govora.