The 110.5km stage from Clitheroe began with the classified ascents of Waddington Fell and Nick o’ Pendle before a considerably flatter second half towards the Blackpool seafront.
Katrine Aalerud made the first significant attack and established an advantage of approximately 30 seconds, but the race was then interrupted when officials stopped both the Norwegian and the peloton.
Race communications reported that a car accident had occurred further along the course. There was no indication that any riders, team vehicles or members of the race convoy were involved, while no further information about the circumstances of the collision was immediately available.
The stoppage left the riders standing in cold and persistent rain before racing was eventually allowed to resume. Aalerud initially continued ahead of the peloton, but her slender advantage was soon erased once the pursuit restarted.
Several further attacks followed as teams attempted to disrupt the expected sprint, although none succeeded in creating lasting separation on the increasingly flat roads towards Blackpool.
Gissinger caught before Wiebes delivers again
Oda Aune Gissinger launched the most dangerous late move with approximately 27km remaining. The 19-year-old opened a small advantage as an intense localised shower poured down on the race, bringing the heaviest rain of an already cold and uncomfortable afternoon.
Daniela Hezinova briefly chased alone between Gissinger and the peloton, but the Team Picnic PostNL rider was caught with 11km remaining. Gissinger continued her effort at the head of the race as Human Powered Health contributed to the pursuit behind.
Her resistance finally ended with approximately 4.5km to go. UAE Team L'IMAD then helped drive the peloton towards Blackpool before Lotte Kopecky moved to the front for SD Worx-Protime just outside the final kilometre.
FDJ United-Suez also contributed to the pace as the sprint trains fought for position, but Wiebes remained protected for the decisive moment. The race leader waited until inside the final 100 metres before accelerating clear to secure the 135th victory of her career.
Coles-Lyster produced an impressive sprint to take second for Human Powered Health, while Le Court-Pienaar claimed third for AG Insurance-Soudal.
Wiebes had started the day four seconds clear in the general classification after defeating Chiara Consonni and Josie Nelson from a reduced 32-rider group in Cockermouth. Her second consecutive stage victory ensured she would carry an increased advantage into Friday’s much hillier stage from Mold to Llandudno.