First, notice we aren't alone. We're focused on the band of snow over us, but if you look at the bigger picture, you can quickly see this swath of snow stretches from Montana to Iowa.
Second, it's cold. That brings up the topic called the fluff factor. We call it snow ratios, but what it really means is you can quickly amplify the number of inches of snow with these systems based on the colder temperature forecast. This works best in light wind situations, which is what we are forecasting.
Third, a strong jet stream right over our heads will help energize this band of snow and may feature a locally heavier band within the broader snow zone. The placement and intensity of these bands are often difficult to forecast more than 12 to 24 hours in advance, so a word to the wise - watch for updates to reflect these trends as they develop.
One more note, the more snow we get during the first half of the weekend will certainly impact the severity of the cold temperatures during the last half of the weekend, making the chance for 20 below zero temps a strong possibility.
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As you watch the latest snowfall forecasts, some of the same challenges we dealt with last week apply to this forecast as well. Here are few things to think about.