The National Weather Service has issued freeze warnings across portions of at least eight eastern states ahead of Sunday, October 18, as temperatures could plunge to 28°F in some communities. The warnings cover parts of Pennsylvania, New Jersey, Ohio, Indiana, Kentucky, West Virginia, Virginia, and North Carolina, with freezing conditions threatening gardens, crops, and exposed outdoor plumbing.
The coldest temperatures are expected overnight Saturday into Sunday morning. In northeastern Pennsylvania, the National Weather Service warns of “sub-freezing temperatures as low as 28 expected” in Carbon and Monroe counties, while nearby areas face readings around 31°F. The warnings mark an immediate concern for homeowners who have not prepared for a potentially damaging fall freeze.
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Where Freeze Warnings Are in Effect
Pennsylvania faces widespread alerts, including the Allentown, Bethlehem, Scranton, and Pittsburgh areas, according to an AccuWeather map. Parts of northern New Jersey are also included.
The NWS Mount Holly office expects temperatures as low as 31°F across portions of eastern Pennsylvania and northern New Jersey between 1 a.m. and 9 a.m. Sunday.
Farther south, the NWS Blacksburg office warns of temperatures dropping to 28°F across portions of southwestern and west-central Virginia, southeastern West Virginia, and northwestern North Carolina. The freeze warning remains in effect from 1 a.m. to 9 a.m. Sunday, October 18.
Its warning states: “Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.”
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When the Coldest Temperatures Will Arrive
Most of the verified Sunday warnings run from approximately 1 a.m. to 9 a.m. Eastern, although timing varies by location.
In central Indiana, the National Weather Service Indianapolis office warns that temperatures could fall to 30°F between 2 a.m. and 9 a.m. Sunday, October 18. The freeze warning covers portions of central, east-central, and west-central Indiana.
Forecasters caution that “frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.”
The warnings apply to specific counties, not entire states. Residents should check their local alerts before assuming their neighborhood will experience freezing temperatures.
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What to Do Before Sunday Morning
The NWS advises residents to “take steps now to protect tender plants from the cold.”
Move vulnerable potted plants indoors, cover sensitive garden vegetation, and protect exposed outdoor plumbing where freezing is forecast.
The immediate threat is concentrated in the overnight hours, making Saturday evening the deadline for preparations.
Bottom line: Check your county’s warning, not just the statewide forecast. A few degrees could determine whether Sunday morning brings ordinary autumn chill or a damaging freeze.
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