Word Morph - Rain To Snow

I awoke this morning to the sound of heavy RAIN Downstairs a lake had formed, oh what a PAIN Off I went to fetch my mop and PAIL Nonetheless, my spirit does not FAIL I made a temporary gutter out of FOIL (This weather will not take me as a FOOL) Now I sit and dry my soaking FOOT That’s black because I trod in flakes of SOOT Which must have fallen from my stove’s air SLOT At last the rain it has begun to SLOW But, alas, it’s only been replaced by SNOW