A combination of dry fuels, low relative humidity and windy conditions this afternoon will create an elevated risk of wildfire spread across much of Central Pennsylvania. Minimum relative humidity values will range from 20 to 30 percent accompanied by wind gusts between 20 and 30 mph from the south- southwest. Residents are urged to exercise caution if handling any potential ignition sources, such as machinery, cigarettes, or matches. If dry grasses and tree litter begin to burn, the fire will have the potential to spread rapidly. For more information about wildfire danger and wildfire prevention and education, please visit the Pennsylvania Department of Conservation and Natural Resources website at http://dcnr.pa.gov/Communities/Wildfire.

* WHAT. Sub-freezing temperatures as low as 28 possible. * WHERE. Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. * WHEN. From late Wednesday night through Thursday morning. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT. Sub-freezing temperatures as low as 27 possible. * WHERE. Portions of east central Ohio and northwest, southwest, and western Pennsylvania. * WHEN. From Wednesday evening through Thursday morning. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

A combination of dry fuels, low relative humidity and windy conditions this afternoon will create an elevated risk of wildfire spread across much of Western Pennsylvania. Minimum relative humidity values will range from 20 to 30 percent accompanied by wind gusts between 20 and 30 mph from the south- southwest. Residents are urged to exercise caution if handling any potential ignition sources, such as machinery, cigarettes, or matches. If dry grasses and tree litter begin to burn, the fire will have the potential to spread rapidly. For more information about wildfire danger and wildfire prevention and education, please visit the Pennsylvania Department of Conservation and Natural Resources website at http://dcnr.pa.gov/Communities/Wildfire.