The air ambulance was called to Boddington Reservoir in the south of the county on Saturday (September 1) after a man fell into the water.
The 35-year-old man had suffered a fit which caused him to fall into the water, and was pulled out of the water by friends before an off-duty fireman and doctor began to treat him.
When the Warwickshire and Northamptonshire Air Ambulance (WNAA) arrived just after 11am, the casualty was conscious and alert.
The crew removed his wet clothes and warmed him before flying him to University Hospitals Coventry and Warwickshire for further assessment and treatment.
Soon after, the WNAA was called out again in the county to a road accident involving several vehicles on the M1 northbound, near junction 16.
There were three casualties, one of which was trapped in a vehicle.
WNAA immobilised the 28-year-old female patient onto a long board and freed her with East Midlands Ambulance Service and the Fire and Rescue Service.
She was then taken to Northampton General Hospital by land ambulance.
The other two casualties were also treated by land ambulance crew.
This is the first of what WNAA expects will be many road traffic accidents which they are called to during September with the charity attending on average 37 road incidents per month so far this year.
WNAA paramedic and airbase manager Philippa Gibbs said: “As people return to school and work after the summer break, swapping a day at the beach for their daily commute, we see the roads become busier – particularly at rush hour. “This, along with the nights drawing in and increasingly bad weather, can lead to an increase in road traffic accidents.
“We really would urge members of the public to take care on the roads and to be particularly careful as the nights start to draw in and the weather takes a turn for the worse.
“Road traffic accidents account for almost 50 per cent of the missions that we attend and can lead to serious, if not fatal, injuries.
“Each mission that we attend costs approximately £1,400 and we rely solely on public donations, receiving no Government or National Lottery funding.
“We attended 86 missions last September, and we’re predicting similar numbers this year. We’re really hoping members of the public can dig deep so that we can continue to save lives across the two counties.”
To donate to WNAA and help keep them flying over the autumn and winter months visit www.wnaa.co.uk/donate or call 08454 130999.