Day 1 Excessive Rainfall Threat Area NWS Weather Prediction Center College Park MD 240 AM EST Tue Dec 10 2019 Valid 12Z Tue Dec 10 2019 - 12Z Wed Dec 11 2019 MARGINAL RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM 10 NNW 7R4 25 ENE JAN 45 SE NMM ASD 15 W PTN 10 NNW 7R4.