The National Weather Service in Memphis issued a FREEZE WARNING for Northeast Arkansas, much of West Tennessee, and Northeast Mississippi that will go into effect at 1 a.m. and continue through 9 a.m. Thursday. A FROST ADVISORY also go into effect at that same time for East Arkansas, Shelby County in West Tennessee, and Northwest Mississippi.
A high pressure system is streaming cold Canadian air into the Mid-South, allowing temperatures to fall into the low to mid 30s overnight.
As a result, patchy frost is likely early Thursday morning.
The high will move east during the day Thursday, allowing a southerly flow to return bringing a brief warm up for the end of the week.
But, a cold front followed by an arctic high pressure system will bring even colder air to the region this weekend.
High temperatures in many areas Saturday will only reach the mid-40s to near 50 followed by temperatures falling into the upper-20s to lower-30s Saturday night allowing for the likelihood of more widespread frost Sunday morning, which will likely lead to another freezing warning being issued this weekend.
If you've moved potted plants outside then you'll certainly want to bring them indoors, and if you've done any early planting in flowerbeds or vegetable gardens then you'll want to cover them.