Rainfall Summary Report For Period Ending 8:00 PM December 18, 2025 Preliminary data subject to revision. * Annual period starting July 1.

Product Description – The ERO is a graphical map issued by the Weather Prediction Center (WPC) that forecasts the probability that rainfall will exceed flash flood guidance (FFG) within …

What is a Rainfall Distribution? Rainfall distributions are synthetic arrangements of a total rainfall amount over time such that it includes maximum rainfall duration intensities for the selected …

Rainfall ChartNational Weather Service Building a Weather-Ready Nation

Depict the data and analyses results with maps, graphs, tables, and explanatory narratives to support flood insurance decisions and sound floodplain management. Document data and …

Type IA is the least intense and type II the most intense short duration rainfall. The four distributions are shown in figure B-1, and figure B-2 shows their approximate geographic …

Northeast South Dakota and west central Minnesota received the most summer rainfall. This area accumulated 4 to 10 inches above normal summer rainfall. In fact, many locations experienced …