NASA TMPA Rainfall Analysis (IMAGE) NASA/Goddard Space Flight Center Caption Data collected from Dec. 21, 2017 to Feb. 23, 2018 in this NASA TMPA rainfall anomaly analysis indicated that parts of the upper Midwest have had 5 mm (0.2 inches) of precipitation per day above normal so far this winter. Credit NASA/Hal Pierce Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.