NZUS99 KBOU 272113 OPUDEN Developmental Probabilistic Snow Accumulation Forecast (DIA) National Weather Service Denver/Boulder, Colorado 1513 MDT Monday, October 27, 2025 -------------------------------------------------------------------------------- This developmental product contains the probabilities (%) that the given snow amounts (inches) will occur at Denver International Airport during the respective 3 hour or 12 hour periods. The probabilities indicate the amount of snow that is expected to accumulate on runways and other concrete surfaces at DIA. [T (trace) means more than zero.] -------------------------------------------------------------------------------- Discussion (27/18-28/18 MDT): No snow expected. Rain showers will be possible late this afternoon and early evening. By the time it becomes cold enough for snow, the showers are expected to be southeast of the area. 0" T or 1" or 3" or 10" or Day/Hour MDT more more more more -------------------------------------------------- 27/18-27/21 | 95 5 0 0 27/21-28/00 | 95 5 0 0 28/00-28/03 | 100 0 0 0 28/03-28/06 | 100 0 0 0 27/18-28/06 | 0 28/06-28/09 | 100 0 0 0 28/09-28/12 | 100 0 0 0 28/12-28/15 | 100 0 0 0 28/15-28/18 | 100 0 0 0 28/06-28/18 | 0 0" T or 1" or 3" or 10" or Day/Hour MDT more more more more -------------------------------------------------- 28/18-28/21 | 100 0 0 0 28/21-29/00 | 100 0 0 0 29/00-29/03 | 100 0 0 0 29/03-29/06 | 100 0 0 0 28/18-29/06 | 0 29/06-29/09 | 100 0 0 0 29/09-29/12 | 100 0 0 0 29/12-29/15 | 100 0 0 0 29/15-29/18 | 100 0 0 0 29/06-29/18 | 0