A Frost Advisory is in effect from midnight tonight through 7 AM Saturday for Madison, Limestone, Morgan, Marshall, Lawrence, Lauderdale, Colbert, and Franklin counties in the Tennessee Valley. Widespread frost is likely and can damage or kill sensitive outdoor crops. Take steps to cover and protect these crops tonight. Frost is also likely in De Kalb, Jackson, and Lincoln counties. The Frost Advisory does not include these counties since a hard freeze has already effectively ended the growing season for these counties.
Dress for cold if you have plans for shopping, dinner, or even a high school football game tonight. Temperatures will drop from the 50s to 40s between 5 PM and 6 PM. Steady cooling through the 40s will lead to 30s by 9-10 PM.
High pressure will keep our Friday night and Saturday dry and sunny. A warmer wind will pick up from the south tomorrow as the high pressure center shifts to the east, so the afternoons will begin growing warmer. An area of low pressure moving inland over the Pacific Northwest and Northern Rockies tonight will track quickly across the northern U.S. tomorrow. It will send a cold front through the Tennessee Valley on Sunday, bringing clouds and a few stray showers. Most of the Tennessee Valley will stay dry as the bulk of the rain passes north of us.
Saturday starts with those chilly 30s. The morning will see temperatures climb through the 40s and 50s. Expect highs in the lower 60s in the afternoon.