I would bring momma and eggs in. Make her a nest in a tote or something. Put her and her eggs in it and place an expandable screen over her so she can't jump out and refuse the eggs. I would put her in a dark room or closet. That will keep her still and calm too. I have the means to make a small pen inside which is what I would do till the storms are over.
Thanks for the idea... Unfortunate I don't have a crate. I've gently moved momma and eggs into an enclosed plastic nest box with a bottom and roof... She hopped right in and started barking at me so....