WWA for Knox County* WHAT…Sub-freezing temperatures as low as 21 expected.
* WHERE…Portions of north central, northeast, and northwest Ohio
and northwest Pennsylvania.
* WHEN…From 8 PM this evening to 10 AM EDT Tuesday.
* IMPACTS…Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.* WHAT…Sub-freezing temperatures as low as 21 expected.
* WHERE…Portions of north central, northeast, and northwest Ohio
and northwest Pennsylvania.
* WHEN…From 8 PM this evening to 10 AM EDT Tuesday.
* IMPACTS…Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.11:32 amApril 20, 2026