Gale force southeasterly winds and driving rain battered Adriatic coast on Tuesday.
The Croatian Meteorological and Hydrological Service issued a red alarm for almost the entire coast and warned that storms could cause damage and extensive flooding.
The southern coast was hit particularly hard, as Dubrovnik saw winds reach 145 kilometres per hour.
The storms have led to hundreds of emergency calls across Dalmatia, local firefighting services said on Tuesday, as streets were blocked with debris and downed power lines.
The Split firefighting unit was out in the field and intervened in several cases involving fallen trees blocking roads and damaging homes. Fire Chief Ivan Kovačević informed the Hina news agency that two fire trucks had been significantly damaged and that about fifteen cars had incurred minor damage.
Gale force winds also blew the roof off a local school, forcing students to be excused from afternoon classes. There have not been any reports of injuries.
All catamaran and ferry services have been suspended.