The children under her care were too fragile and ill to play in the snow, so a nurse ran into a blizzard several times, bringing snow inside for the kids.

It started with seven-year-old Lucy Wiese, a little girl who's a big fan of the movie "Frozen." When snow started falling outside her hospital window in Maryland, she wanted to go play in it.

Lucy had been hospitalized for eight weeks recovering from a bone marrow transplant for her immune disorder and couldn't leave the room.

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Clinical research nurse Alex Classen decided that if Lucy couldn't go outside, she'd bring the snow inside for the little girl.

As a winter storm began dropping two feet of snow across America's East Coast, Classen ran out in just her lightweight hospital scrubs, scooping up bowls full of snow.

She brought a batch in for Lucy — then made more trips into the ever worsening storm to gather more snow for other children at the National Institutes of Health Clinical Center.

As the snow piled up outside, Lucy, all safe and warm in her hospital room, stood beneath a movie poster of "Frozen" and fashioned her own little Olaf the Snowman, smiling throughout the special snow day nurse Classen had delivered.

Photos: National Institutes of Health Clinical Center, and Facebook

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