Humberside Fire Service received around 135 calls on Wednesday afternoon as heavy rain fell. Around 50 firefighters were deployed to the town to help pump out buildings affected by flooding.
A number of elderly people were evacuated from a care home until the water subsided.
With the clear-up operation now under way, weather experts say areas of Yorkshire received almost a month’s rainfall in just 12 hours.
Between 6am and 6pm, Howden received 41.9mm, while Leconfield had 24mm of rain, with 22.6mm falling there over a period of just one hour.
In Dunnington, North Yorkshire, trees collapsed when high winds and torrential rains hit the village.
A spokesman for North Yorkshire Fire and Rescue said: “Numerous trees came down on Common Road, and were believed to be blocking the highways and affecting power lines.
“Firefighters went out as a cautionary measure to check it was safe.”
In the York area, a Tesco supermarket at Askham Bar was evacuated after the roof began leaking.
Crews were also sent to a house in Stepney Road, Scarborough after a fire broke out as a result of a lightning strike.
The occupants were out of the property, but the fire caused damage to the lounge and smoke damage elsewhere in the house.
Although the clear-up has begun, more rain is expected across parts of the UK on Thursday.