IL-9: Snow & Avalanche Forecasting
Name: ________________________________ Class: ____________Date: __________
Severe & Hazardous Weather Active Learning Exercises – Ed 4
Exercise 16.2 Pressure Patterns, Wind Flow, and Mountain Snows The four surface maps below each show the sea level pressure distribution across the western United States on different days in January. 1. Draw arrows around the pressure systems to indicate wind direction. (The first one is done
for you.) 2. Shade in the regions on each map where the wind direction is favorable for the development
of snow in the mountains of the western United States. 3. If the snow would fall on the east slope of the Rockies, label it “upslope snow.”
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