The National Weather Service in Huntsville has issued a *FROST ADVISORY* for early Thursday for all of North Alabama and South Tennessee.
Make plans to protect tender vegetation as temperatures dip into the lower to middle 30s early Thursday morning. This is cold enough to cause frost damage to crops and plants like strawberries, tomatoes, peppers, etc.
While temperatures this cold in late April is unusual, it is not uncommon. Freezing cold temperatures have been recorded as late as May, and frosty conditions have been observed as late as June in North Alabama.
Below is additional information from the National Weather Service.
URGENT - WEATHER MESSAGE National Weather Service Huntsville AL 133 AM CDT Wed Apr 21 2021 Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, Athens, Huntsville, Decatur, Albertville, Boaz, Guntersville, Arab, Scottsboro, Fort Payne, Rainsville, Cullman, Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 133 AM CDT Wed Apr 21 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of north central, northeast and northwest Alabama and southern middle Tennessee. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.