Irwin, 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 Irwin.

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

Flash Flood Warning issued September 3 at 11:15PM EDT until September 4 at 1:00AM EDT by NWS Pittsburgh PA

At 1115 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flooded roadways and high water is still present. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Latrobe, Homer City, Mount Pleasant, McChesneytown-Loyalhanna, Blairsville, Derry, Lawson Heights, Ligonier, Black Lick, Calumet-Norvelt, New Florence, Seward, Bolivar, Youngstown, Laurel Mountain, Armagh, Donegal, Lucerne Mines and Jacksonville.

Flash Flood Warning issued September 3 at 11:14PM EDT until September 4 at 12:45AM EDT by NWS Pittsburgh PA

At 1114 PM EDT, local law enforcement reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 3.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flooded roadways and high water is still present. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Monroeville, Greensburg, Jeannette, Vandergrift, Apollo, Murrysville, White Oak, Irwin, Manor, Trafford, Youngwood, Delmont, West Newton, New Stanton, Leechburg, North Apollo, West Leechburg and Avonmore.

Flash Flood Warning issued September 3 at 11:13PM EDT until September 4 at 12:15AM EDT by NWS Pittsburgh PA

At 1113 PM EDT, local law enforcement reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. There are still high water areas. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Ross Township, McCandless Township, Monroeville, Moon Township, McMurray, Weirton, McKeesport, Franklin Park, Aliquippa, Canonsburg, Gastonville, Shaler Township, Plum, West Mifflin and North Side Pittsburgh.

Severe Thunderstorm Watch issued September 3 at 8:39PM EDT until September 4 at 2:00AM EDT by NWS Mount Holly NJ

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 652 IN EFFECT UNTIL 2 AM EDT FRIDAY FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 3 COUNTIES IN CENTRAL DELAWARE KENT IN NORTHERN DELAWARE NEW CASTLE IN SOUTHERN DELAWARE SUSSEX IN MARYLAND THIS WATCH INCLUDES 4 COUNTIES IN NORTHEAST MARYLAND CAROLINE KENT QUEEN ANNE'S TALBOT IN NEW JERSEY THIS WATCH INCLUDES 3 COUNTIES IN SOUTHERN NEW JERSEY CAPE MAY CUMBERLAND SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 1 COUNTY IN SOUTHEAST PENNSYLVANIA CHESTER THIS INCLUDES THE CITIES OF CENTREVILLE, CHESTERTOWN, DENTON, DOVER, EASTON, GEORGETOWN, MILLVILLE, OCEAN CITY, PENNSVILLE, WEST CHESTER, AND WILMINGTON.

Flood Advisory issued September 3 at 8:38PM EDT until September 4 at 5:00AM EDT by NWS Pittsburgh PA

...The National Weather Service in Pittsburgh has issued a Flood Advisory for the following rivers in Pennsylvania... Ohio River At Pittsburgh affecting Allegheny County. .THe Ohio River at Pittsburgh will remain elevated tonight due to heavy rainfall. * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Ohio River at Pittsburgh. * WHEN...From this evening to late tonight. * IMPACTS...At 18.0 feet, Water begins to flow onto the Monongahela Parking Wharf. * ADDITIONAL DETAILS... - At 8:15 PM EDT Thursday the stage was 18.0 feet. - Bankfull stage is 18.0 feet. - Forecast...The river is expected remain nearly steady near 18 feet this evening, before falling to 16.6 feet early Tuesday afternoon. - Action stage is 18.0 feet. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood