Freeze Watches are in effect from late Saturday night through Sunday morning across Ohio, Pennsylvania, western New York, West Virginia, Maryland and Virginia, with lows as cold as 25 degrees possible.
A strong cold front is sweeping through the region Friday.
Much colder air follows behind it.
Six National Weather Service offices issued the watches.
Frost and freeze conditions could kill crops and other sensitive vegetation.
Unprotected outdoor plumbing could also be damaged.
Source: NWS Charleston, WV on X
Pennsylvania
Central Pennsylvania (NWS State College): lows as cold as 25 degrees.
This is the coldest forecast of the five watches.
It covers Harrisburg, Lancaster, York, State College, Altoona, Johnstown, Williamsport, Gettysburg, Chambersburg and Lewisburg.
Western Pennsylvania (NWS Pittsburgh): lows as cold as 30 degrees.
Cities include Pittsburgh, Latrobe, Greensburg, Uniontown, Washington, Butler, Kittanning, Beaver Falls, Oil City and Punxsutawney.
Northwest Pennsylvania (NWS Cleveland): includes Meadville and Titusville.
Ohio
North Central, Northeast and Northwest Ohio (NWS Cleveland): lows as cold as 30 degrees.
Cities include Cleveland, Akron, Canton, Youngstown, Toledo, Mansfield, Lorain, Elyria, Sandusky and Wooster.
East Central Ohio (NWS Pittsburgh): includes Steubenville, New Philadelphia, Zanesville and Coshocton.
Southeast Ohio (NWS Charleston): includes Marietta, Athens, Pomeroy and McConnelsville.
West Virginia
Central, Northern and Southern West Virginia (NWS Charleston): lows as cold as 30 degrees.
Cities include Parkersburg, Clarksburg, Beckley, Elkins, Weston, Buckhannon, Oak Hill, Welch, Summersville and Fayetteville.
Northern Panhandle and North (NWS Pittsburgh): includes Wheeling, Morgantown, Weirton, Moundsville and Fairmont.
The watch also covers parts of southwest Virginia.
Source: NWS Charleston, WV on X
New York
Western New York (NWS Buffalo): sub-freezing temperatures are possible, especially inland from the Great Lakes.
The watch covers Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Northern Erie and Genesee counties.
Cities include Buffalo, Rochester, Niagara Falls, Batavia, Medina and Newark.
The watch runs late Saturday night through Sunday morning.
Maryland, Virginia and the Eastern Panhandle
NWS Baltimore-Washington expects lows in the upper 20s and low 30s.
The watch covers north central and western Maryland, central, northwest and western Virginia, and the eastern panhandle of West Virginia.
Cities include Hagerstown, Cumberland, Frostburg, Winchester, Front Royal, Harrisonburg, Staunton, Martinsburg, Charles Town and Luray.
The watch runs late Saturday night through Sunday morning.
Source: NWS Baltimore-Washington on X
How to Prepare
A Freeze Watch means sub-freezing temperatures are possible.
Take steps now to protect tender plants from the cold.
Cover or bring in sensitive plants before Saturday night.
To keep water pipes from freezing, wrap them, drain them or let them drip slowly.
Check back for later forecasts, as a watch can be upgraded to a Freeze Warning.
