The National Weather Service in Portland has issued a frost advisory for Clark County amid record breaking low temperatures.
The advisory went into effect at midnight on Monday and is set to expire at 8 a.m.
Temperatures were forecasted to dip into the 30s overnight for many county communities. Outlying valleys away from the Vancouver metro area were expected to fall into the lower or mid 30s, according to the weather service.
The advisory listed the communities of Vancouver, Battle Ground, Ridgefield, Washougal, Yacolt and Amboy.
“Frost could kill sensitive outdoor vegetation if left uncovered. Take steps now to protect tender plants from the cold,” the advisory says.
Forecasters urged people to take precautions and protect their plants.
On Twitter, the weather service reported that Sunday was a record-breaking day for areas of Southwest Washington and Northwest Oregon. For some locations, it was the coldest September day since 1948.
Vancouver’s high was 51 degrees, breaking the previous cool high for Sept. 29 of 54 degrees set in 1971. The normal high temperature for the day is 71 degrees.
Additionally, the city tied its coolest high for any day in September. The 51-degree record was set back in September 1919, according to the weather service.
It will be a tad warmer in Vancouver on Monday, which has a predicted high of 60 degrees. However, the low for the night is 38 degrees. A similar weather pattern is forecasted for Vancouver at least through Thursday night, but the day and night temperatures are several degrees warmer.
The city’s first chance of rain comes Wednesday, with a slight chance of showers through Saturday.
