Saint Nicholas Warnings, Watches and Advisories

Frost Advisory issued October 19 at 2:14AM EDT until October 19 at 9:00AM EDT by NWS Mount Holly NJ

* WHAT...Temperatures as low as 35 degrees will result in frost formation. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Frost Advisory issued October 18 at 10:42PM EDT until October 19 at 9:00AM EDT by NWS State College PA

* WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Lancaster and Lebanon Counties. * WHEN...Until 9 AM EDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Freeze Warning issued October 18 at 10:42PM EDT until October 19 at 9:00AM EDT by NWS State College PA

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...York County. * WHEN...Until 9 AM EDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Frost Advisory issued October 18 at 8:25PM EDT until October 19 at 9:00AM EDT by NWS Pittsburgh PA

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of east central Ohio, far southwest Pennsylvania, and northern West Virginia. * WHEN...From 1 AM to 9 AM EDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Saint Nicholas.

Use the Radar Maps link provided to understand the trajectory of a storm.