In-situ measurements indicate the existence of reversed near-surface airflow over the north-eastern Adriatic during the bora wind. Here we examine its structure and evolution by means of a numerical simulation. The studied phenomenon developed during typical summer frontal bora that is associated with a cold air advection from the north-east. It is characterized by a sudden increase in wind speed and a brief duration. Within a sheltered area near the town of Malinska on the island of Krk, onshore flow occurred as the bottom branch of the lee rotor-like circulation that was associated with the hydraulic jump. While the closed circulation somewhat resembles the hypothesized hydraulic-jump rotor, there are significant differences, particularly in the strength of the turbulence associated with the rotor formation.Površinska mjerenja upućuju na postojanje povratnog površinskog strujanja na sjeveroistočnom Jadranu tijekom bure. Stoga ovdje ispitujemo njegovu strukturu i razvoj pomoću numeričkih simulacija. Proučavana se pojava razvila tijekom jednog tipičnog događaja ljetne frontalne bure koju karakterizira iznenadno povećanje brzine vjetra. U blizini Malinske, unutar zaklonjenog dijela tijekom bure, strujanje prema obali je nastalo kao donja grana zavjetrinske cirkulacije slične rotoru koja je povezana s hidrauličkim skokom. Iako zatvorena cirkulacija sliči hipotetskom rotoru uslijed hidrauličkog skoka, postoje značajne razlike, osobito u snazi turbulencije koja je povezana s nastankom rotora
