In some districts of Banskobystrický, Trenčiansky, Košický, Prešovský and Žilinský kraj will be foggy even on Sunday night.
In this regard, the Slovak Hydrometeorological Institute (SHMÚ) issued first-phase warnings against the nympes.
The alert is issued after 20.00. As meteorologists report on their site, it is expected that these sites have hills with a visibility of between 50 and 200 meters.
"Reducing visibility represents a potential danger to traffic activities," said the SHMU.
The alert is valid until Monday (November 12) until 11:00.