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An unusually cold and dry Arctic airmass was present across Central Alabama on the early morning of January 21, 2025, with temperatures in the upper teens to 20s and dewpoints in the single digits. Moisture began to increase along the Gulf Coast in advance of a positively tilted longwave trough which extended from the Great Lakes Region southwest through Texas. This rapidly resulted in the development of historic winter storm conditions along the Gulf Coast from Louisiana into southern Mississippi and the Alabama coast. By mid-morning, moisture began to translate inland across the Florida Panhandle and into southern and southeastern portions of Central Alabama, with reports of flurries as early as 8 AM CT. Initially, precipitation struggled to reach the ground due to a deep surface to 800mb layer of dry air measured on the 12Z and 18Z radiosonde observations in Calera. However, reports of light to moderate snowfall began to increase through the morning across counties generally along and south of the Interstate 85 corridor where the moisture was able to overcome the dry airmass. Snow was quick to accumulate on roadways due to the preceding cold conditions, and travel quickly became hazardous as the snow continued to fall through the afternoon. The longer duration of snowfall resulted in accumulations ranging from as low as 0.5 inches at the Montgomery Regional Airport to 2 inches in Auburn with bursts of heavier snowfall resulting in 5 to 6 inch accumulations from Pike County east into Barbour County. The stubborn dry layer north of those areas produced a sharp gradient in the appreciable snowfall with most locations north of I-85 seeing little to no accumulation. |
Total Snowfall Map View Interactive Map |
Terra MODIS Visible Satellite Imagery
January 22 at 10am
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500mb Analysis |
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