Sforno on Genesis 41:3/ספורנו על בראשית מ״א:ג׳

1ותעמודנה אצל הפרות, before they had been devoured by the fat cows. This apparently minor nuance was to tell Joseph that famine and plenty would occur at the same time, would overlap at some stage. [the countries surrounding Egypt not having had the benefit of the seven good years, experienced the famine already when there was still plenty of food in Egypt itself. Ed.] (compare verse 54)