Little changes to the forecast tonight. Snow has moved into northeast Colorado this evening, making national headlines with the World Cup qualifier in Denver being broadcast on ESPN. Certainly an exciting game, and one folks will remember for years to come!
The National Weather Service upgraded the Winter Weather Advisory to a Winter Storm Warning just after 9pm tonight. They have upped their forecast from 4 - 8" inches to 6 - 12" through 6pm Saturday. I maintain that our broad-brushed 4 - 8 inches forecast earlier this morning stands, with 3 -6" more likely within central Denver. Locations east of Denver, as we have been noting for days, could certainly do better. Models continue to produce 15" for portions of northeast Colorado. I will caution, and continue to caution, that this heavy snow tonight does not mean we are certain to break the 10" mark, but as Matt pointed out tonight, certainly better upslope being shown at this time. Josh continues to like the higher end totals, certainly not impossible, but I remain on the lower end. I maintain that some west of I-25 will feel robbed by this system.
Below (left) is the 12z NAM, shows plenty of snow for northeast Colorado through Saturday night. Right is the position of the surface low 12z Saturday - a bit better than we have seen to date.