After flooding Southern California with torrents of rain, the latest Pacific Storm moved into the Four Corners region yesterday, dropping snow across the higher terrain. Following a week of warm, sunny weather along the Colorado Front Range, the effects of the storm arrived here last night, bringing rain to Metro Denver.
Now centered over Southeastern Colorado, the storm's cold front has ignited a band of thunderstorms across the Southern Plains and that plume of Gulf moisture is now directed toward the Front Range. Since it is currently arriving from the southeast and since cold air behind the storm has not yet invaded the urban corridor, the precipitation is still in the form of rain.
However, as the storm drifts eastward, the winds and their cargo of moisture will shift from the northeast, producing a classic upslope flow into the Denver region. Rain will likely mix with snow by this afternoon, changing to all snow overnight. We currently expect anywhere from 1 to 6 inches, depending on the duration and intensity of that upslope flow.