NZUS99 KBOU 042111 OPUDEN Developmental Probabilistic Snow Accumulation Forecast (DIA) National Weather Service Denver/Boulder, Colorado 1511 MDT Monday, May 04, 2026 -------------------------------------------------------------------------------- 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 (04/15-05/18 MDT): The next storm will bring widespread precipitation to DIA starting tonight and continuing all the way through Wednesday evening, May 6th. The precipitation type will mainly be rain tonight and Tuesday. The rain will change over the snow Tuesday evening after sunset, with snow continuing to fall Tuesday night into Wednesday morning. Temperatures look to stay above freezing tonight and Tuesday. Later Tuesday evening, readings may drop into the upper 20s. Snowfall is not expected to accumulate on the paved surfaces until later Tuesday overnight, with perhaps a slushy inch or two at best by Wednesday morning. Higher accumulations as possible on non-paved surfaces where up to 6 inches are possible with this storm. 0" T or 1" or 3" or 10" or Day/Hour MDT more more more more -------------------------------------------------- 04/15-04/18 | 100 0 0 0 04/18-04/21 | 100 0 0 0 04/21-05/00 | 100 0 0 0 05/00-05/03 | 100 0 0 0 05/03-05/06 | 100 0 0 0 04/18-05/06 | 0 05/06-05/09 | 100 0 0 0 05/09-05/12 | 100 0 0 0 05/12-05/15 | 100 0 0 0 05/15-05/18 | 100 0 0 0 05/06-05/18 | 0 0" T or 1" or 3" or 10" or Day/Hour MDT more more more more -------------------------------------------------- 05/18-05/21 | 0 100 0 0 05/21-06/00 | 0 100 20 0 06/00-06/03 | 0 100 40 0 06/03-06/06 | 0 100 40 0 05/18-06/06 | 0 06/06-06/09 | 0 100 10 0 06/09-06/12 | 0 100 0 0 06/12-06/15 | 50 50 0 0 06/15-06/18 | 75 25 0 0 06/06-06/18 | 0