We warm up to near normal for a day today as a short wave ridge zips past. (As seen in Figure 6, normal highs are around 55F and lows around 27F this week of the year.)
The ridge is the blue line to our west-ish in Figure 1. Our big trough, for the weekend storm, is down to the southwest of us. We’ll cover that in Figure 2 and the longer range forecast below…
The longer range forecast:
The upper air pattern for Sunday PM show the big trough consolidating north to south and is sliding towards us (Figure 2). That is the lift needed for the next snow storm. Figure 3 is the abnormally cold air (in blue). There are three blobs, one coming out of Canada, one pressed up against the Rockies over us, and one down in Texas.
What do the models say currently about snow amounts? Weatherunderground is calling for 1-3 inches (Figure 6). The GFS has about the same 1-3 inches (Figure 4). The NAM has about 2.5 to 3.5 inches (Figure 5).