The following events were reported: Flash Flood, Heavy Rain. These occurred near station USW00094823, approximately 23.0844 km away, between 2021-09-01 00:00:00 and 2021-09-01 13:19:00.Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 153000.0 and crop damage of 0.0. Episode Narrative: The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st. The abundant moisture associated with the low intersected a frontal zone which was nearly stalled in the area of the Ohio Valley. Strong isentropic and frontogenetically-induced lift led to periods of heavy rain over much of southwestern Pennsylvania over the two-day period, both from thunderstorms ahead of the low and from a period of tropical rainfall during the morning of the 1st. Rain tapered off by the afternoon as the remnants of Ida pulled towards the Mid-Atlantic coast.||The heaviest rainfall over the two-day period was observed in Westmoreland, Allegheny, and Washington Counties, with totals of 3 to 5 inches common. Lesser totals were noted to the north and south of this area, with areas near Interstate 80 mainly receiving a half-inch or less. The heavy rainfall resulted in widespread flooding of roads and streams, with several instances of evacuations noted. Particularly hard hit were the municipalities of Millvale, Bridgeville, and Scott, all of which issued disaster declarations. In Stowe Township, a school bus was trapped in flood waters, requiring the rescue of two adults and seven children. Other rescues of trapped motorists were noted. Twenty-four residents had to be evacuated from an assisted living facility in Oakdale, where water up to 18 inches deep was observed across the town. ||Despite the heavy rain and numerous instances of flash and areal flooding, widespread river flooding was not observed after the rainfall ceased. A dry slot near the Mason-Dixon Line on the morning of the 1st kept rainfall totals lower on the headwaters of the Monongahela River, allowing area reservoirs to mitigate the impact of the tropical rain downstream. Thus, while short-term flooding was significant over a portion of the region, the overall event did not have the same impact as Gordon in 2018 or Frances/Ivan in 2014. The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st. Event Narrative: Flooding was observed on Plum Street between 6th Street and Dark Hollow Road. Rainfall total since 2 AM of 3.04 inches. Since midnight, 2.82 inches were observed. Total rainfall for the event is 4.20 inches. A storm total rainfall of 5.18 inches was seen. A  24-hour rainfall measurement of 3.25 inches was observed. An event total rainfall measurement of 3.70 inches was reported. The event total rainfall was measured to be 4.58 inches. A 24 hour rainfall total of 2.04 inches was reported. Flooding was reported throughout Oakdale Borough. The fire and police stations were evacuated. Approximately 18 inches of water was reported throughout the town. Water was reported to be flowing into a residence on Salem Drive, and flooding was also occurring on Bower Hill Road. Flooding was occurring on Spring Valley Road. Flooding was occurring on McLaughlin Run Road. The road was being closed. A video on social media showed that Piney Fork was out of its banks and flowing onto Piney Fork Road. Flooding was reported on the 800 block of Freeport Road, which was closed. Flooding was reported on Seavey Road. A school bus was disabled on the road. On State Route 980, a car was stuck in the water up to its headlights. Flooding was reported on Langeloth Road. Evacuations were occurring due to flooding at the intersection of Baldwin Street and Railroad Street. Flooding was occurring at the 1000 block of Evergreen Avenue. The road was closed. A male was trapped in a vehicle at the intersection of Hahn Drive and Maple Lane. Western Avenue was closed between Meddings Road and McConnells Mill Road due to flooding. A school bus was stuck in water at the intersection of Ohio Street and Center Street. 2 adults and 7 children were trapped. They were eventually rescued with no injuries. Library Road was closed between Kings School Road and Clifton Road due to flooding. A rail line in the area was also closed. Multiple homes were flooded on Church Street. Valley Brook Road from East McMurry Road to Friar Lane was impassable due to flooding. According to a submitted video, Girtys Run in Millvale by Frederick Street was overflowing on to roads, just shy of reaching houses. A total of 2.08 inches of rain was measured through 8 AM. Hulton Road was reported to be flooded. An assisted living facility was flooding and being evacuated. Twenty-four people were in the building at the time. Flooding was reported on Blythe Road, with some residents being evacuated. This was a 24-hour rain accumulation  of 4.20 inches through 8 AM. A swift water team responded to Streets Run Road for a vehicle stuck in water with one occupant.