Low temperatures

Overnight lows are forecast in the lower to mid-30s around the region early Friday, prompting a frost advisory west of Interstate 95. (National Weather Service / April 17, 2014)

One more time: A frost advisory has been issued for areas west of Interstate 95 as the region gradually warms out of a cold snap.

Lows in the lower to mid-30s are expected in Howard, Carroll and Baltimore counties and Baltimore City (likely just outside of downtown). Sensitive plants left outdoors could be at risk.

Temperatures dropped below freezing for two consecutive mornings Wednesday and Thursday, prompting freeze warnings across the region. Baltimore-Washington International Thurgood Marshall Airport hit 31 degrees early Wednesday and 30 degrees early Thursday.

Lows are forecast to get back to seasonable levels in the 40s starting this weekend, with afternoon highs returning to the 60s, and the 70s by next week.

Climate forecasts suggest a warming trend for the second half of April.