Police Scotland said earlier restrictions on the flight of EC135 helicopters had been lifted and their helicopter had been cleared to fly.
A spokeswoman said: "As of 3.18pm today ... the Police Scotland Air Support Unit is now fully operational."
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Robert Gropel asked his wife to wait while he hiked to the peak, not realising she had altitude sickness that would prove fatal.
Severe weather warnings have been issued as up to 60mm of rain is set to fall within just a few hours in some parts.
Tuesday: A cloudy, cool and dull day with outbreaks of heavy rain becoming lighter and patchier.