Snowfall map for current storm sytem with impacts from 9am Mon through 9am Tue

10/13/25 8:45am: The next round of rain/snow is moving into southern / central CO now. I had some time last night into this morning to create my first snowfall map of the season! (you know that's why you love this group lol). Not a big snow-storm but enough to warrant a map (and mostly get me ready for the season). But forecast is on track for some heavy rain in spots (over southern CO) and some snow mostly above 9kft.

I'll let the maps speak for themselves. Most of the impacts will be from 9am today through 9am tomorrow morning coming in two rounds.

Heavy rain over the San Juans: 1-4" of new rain in spots, 3-10" of snow above 9k ft.

Moderate rain and snow over the north-central to south-central mountains with heaviest amounts along/south of I-70 (from Hoosier Pass south), with 0.50"-1.00" of rain with 1-5" of snow in spots, refer to map.

For Den/Bou and the front-range a chance for scattered rain showers initially from 1pm-6pm today, with best chances from Boulder north to the WY border and in/near the foothills. Then another chance for some rain showers from 12am-6am tomorrow morning. Likely not that much measurable rain overall with this storm.

Next storm system expected from Wed night into Thu with rain/snow mostly for western CO and the mountains again.

First image is my snowfall map through 9am Tue. Second image is current composite radar over the state. Images 3 and 4 show forecast total liquid precip and total snowfall through 6pm Tue from latest HRRR, take amounts with grain of salt.