York County, PA Warnings, Watches and Advisories

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 York County.

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

Flood Watch issued September 3 at 11:15AM EDT until September 4 at 12:00AM EDT by NWS Pittsburgh PA

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest and western Pennsylvania, including the following areas, in northwest Pennsylvania, Forest, Jefferson PA, Mercer and Venango. In western Pennsylvania, Clarion. * WHEN...Through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Following multiple rounds of thunderstorms over the previous 24 to 36 hours, another cluster is expected Thursday afternoon and evening that could produce heavy rain on an already saturated ground that is susceptible to flash flooding. Hourly rates could reach 1-2 inches per hour in the strongest storms. - http://www.weather.gov/safety/flood

Flood Warning issued September 3 at 6:37AM EDT until September 4 at 8:27AM EDT by NWS State College PA

...The Flood Warning continues for the following creek in Pennsylvania... Bald Eagle Creek near Beech Creek Station affecting Clinton and Centre Counties. ...The Flood Warning is cancelled for the following creek in Pennsylvania... Penns Creek near Penns Creek affecting Union and Snyder Counties. * WHAT...Major flooding is occurring and major flooding is forecast. This approaches the flood of record. * WHERE...Bald Eagle Creek near Beech Creek Station. * WHEN...Until Friday morning. * IMPACTS...At 15.0 feet, Homes in the cottage area are cutoff by high water and directly affect homes in this area. * ADDITIONAL DETAILS... - At 5:30 AM EDT Thursday the stage was 15.1 feet. - Forecast...The creek is expected to rise to a crest of 15.3 feet this morning. It will then fall below flood stage just after midnight tonight. - Flood stage is 11.0 feet. Major flooding is 15.0 feet. - Flood History...This crest compares to a previous crest of 15.6 feet on 01/19/1996. - http://www.weather.gov/safety/flood

Heat Advisory issued September 3 at 4:23AM EDT until September 3 at 8:00PM EDT by NWS State College PA

* WHAT...Heat index values up to 101 expected. * WHERE...A portion of south central Pennsylvania. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Flood Watch issued September 3 at 2:42AM EDT until September 4 at 12:00AM EDT by NWS State College PA

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of central Pennsylvania, including the following areas, Adams, Bedford, Blair, Cambria, Cameron, Clearfield, Columbia, Cumberland, Dauphin, Elk, Franklin, Fulton, Huntingdon, Juniata, Lancaster, Lebanon, McKean, Mifflin, Montour, Northern Centre, Northern Clinton, Northern Lycoming, Northumberland, Perry, Potter, Schuylkill, Snyder, Somerset, Southern Centre, Southern Clinton, Southern Lycoming, Sullivan, Tioga, Union, Warren and York. * WHEN...Through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Additional, multiple rounds of heavy rain from thunderstorms will create the threat for flash flooding of streams, creeks and poor drainage areas today through early tonight. Rainfall rates could exceed 3 inches per hour where several storms track east-southeast across the same locations. There should be a lull in the rain for several hours during the late morning and early afternoon hours today, before the thunderstorms greatly increase in number once again across Central Pennsylvania and the Susquehanna Valley. - http://www.weather.gov/safety/flood

Heat Advisory issued September 3 at 1:26AM EDT until September 3 at 8:00PM EDT by NWS Mount Holly NJ

* WHAT...Heat index values up to 102 expected. * WHERE...In Delaware, New Castle County. In New Jersey, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 3 at 1:26AM EDT until September 3 at 8:00PM EDT by NWS Mount Holly NJ

* WHAT...Heat index values up to 100 degrees expected. * WHERE...In New Jersey, Eastern Monmouth, Mercer, Western Monmouth, Ocean, and Southeastern Burlington Counties. In Pennsylvania, Berks, Eastern Chester, Western Chester, and Western Montgomery Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 2 at 7:40PM EDT until September 3 at 8:00PM EDT by NWS Pittsburgh PA

* WHAT...Heat index values up to 102 expected Thursday with limited overnight cooling. * WHERE...Portions of east central Ohio, southwest and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.