the valleys are where ice dams have a tendancy to form,

I sock full of salt hels with that

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well you can traditional rood rake, you can get up on the roof and shovel, you can hire someone to do it., you can crank your heat too 100 and hope you melt the snow from the inside.

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there are like cutting type roof rakes

https://www.google.com/search?client=firefox-b-1-d&q=cutting+roof+rakes#fpstate=ive&vld=cid:29ca1ea6,vid:yn2IQ1hIx7o