This graphic best describes the forecast today:GREEN is a flood advisory. Showers & storms kick off this late afternoon / evening, and could put down a widespread 1-2" of rainfall, but there will be some pockets and swaths that could see 4"+ easily.
ORANGE is a heat advisory, because the cold front will stall and not chill the whole area today. Expect warmer temps to the south & east.
-Greg@660weather