On Sunday at 3:41 a.m. the National Weather Service issued a frost advisory in effect until 8 a.m. for Southern Centre, Southern Clinton and Southern Lycoming as well as Blair, Huntingdon, Bedford, Fulton, Union, Snyder, Montour, Northumberland and Columbia counties.

The weather service adds, “For the Frost Advisory for this morning, temperatures as low as 32 degrees will result in frost formation. For the Freeze Watch for Monday morning, temperatures as low as 30 degrees are possible.”

“Freezing temperatures could kill crops and other sensitive vegetation,” describes the weather service. “Consider taking protective measures as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside.”

Frost advisory – this is what it means

Frost advisories are issued from May to October (but can be extended if necessary) when temperatures, winds, and sky cover are favorable for frost development. This is most likely to happen when the temperature is 36 degrees or less. In some cases, the frost is severe enough to end the growing season and is then referred to as a ‘killing frost’.

According to the weather service, if a frost advisory is issued for your area, cover up sensitive plants before the sun sets so that it can help retain heat near the plants, or move the plants indoors for the night, if possible.

Advance Local Weather Alerts is a service provided by United Robots, which uses machine learning to compile the latest data from the National Weather Service.