The following events were reported: Flood. These occurred near station USW00013739, approximately 19.4708 km away, between 2007-04-15 08:01:00 and 2007-04-16 20:07:00. The flood was caused by Heavy Rain. Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 1000000.0 and crop damage of 0.0. Episode Narrative: An intense nor'easter brought heavy rain and flooding to Eastern Pennsylvania on the 15th and strong to high winds as well as some snow to the region on the 16th. Numerous streams and rivers flooded, but the flooding along the Delaware River was minimal. Many roadways were closed due to flooding. Many basements were also flooded. There were a small number of mainly voluntary evacuations. About 25 major roadways around the greater Philadelphia Metropolitan area were closed due to flooding.|Rain began falling throughout the area during the late evening on the 14th. It started briefly as snow over some of the higher terrain of the Poconos. The rain fell at its heaviest across the Lehigh Valley and the Poconos from about 3 a.m. EDT on the 15th into the evening. Precipitation changed to snow over the higher terrain shortly after midnight EDT on the 16th while a mixture of rain and snow (during heavier bursts) continued in the valleys through the morning. Precipitation ended during the afternoon and early evening. Elsewhere across Eastern Pennsylvania, the rain fell at its heaviest from about 3 a.m. EDT on the 15th to about 3 a.m. EDT on the 16th. As the upper air disturbance moved across southeast Pennsylvania, the rain did change to snow for a couple of hours around sunrise on the 16th and accumulated about an inch or two on grassy areas. The steady precipitation ended during the afternoon and early evening on the 16th. Event precipitation totals averaged 3 to 6 inches. Event snowfall totals were an inch or two in most areas, except for 3 to 6 inches in the higher terrain of the Poconos. |The strongest winds occurred as the nor'easter pulled northeast of the region on the 16th from the early morning into the afternoon. The combination of the heavy rain, even some snow and the winds helped knock down numerous trees and power lines. PECO Energy reported about 80,000 of its southeastern Pennsylvania customers lost power. More than 50 major roads were closed in southeastern Pennsylvania because of downed trees. also in Southeastern Pennsylvani, five SEPTA Regional Rail Service Lines had service interruptions on the 16th. Pennsylvania Power and Light reported about 77,000 of its customers lost power in Eastern Pennsylvania and about 65,000 homes and businesses lost power in the Lehigh Valley. Peak wind gusts averaged around 50 mph.|The combination of the snow, wind (power outages) and flooding (more so in the local Philadelphia area) caused many school districts to either cancel classes or have delayed openings on the 16th. The nor'easter was so nasty that even the Internal Revenue Service extended the tax deadline for 48 hours. |The nor'easter low pressure system initially formed in the southern Rockies on the 12th and moved to Arkansas on the morning of the 14th. At 8 p.m. EDT on the 14th, there were two low pressure systems, one in Kentucky and the other in western Alabama. The southern low pressure system became the predominate one overnight and at 8 a.m. EDT on the 15th, it (996 millibar low) was located in western North Carolina. As the 15th continued, it moved northeast and intensified rapidly. At 2 p.m. EDT the nor'easter (989 millibars) was near Raleigh, North Carolina. EDT, the nor'easter was a 979 millibar low pressure system near Virginia Beach, Virginia. Another low pressure system formed on its warm front during the afternoon over Chesapeake Bay and at 8 p.m. EDT it (982 millibars) was over extreme southwest New Jersey. The lows consolidated into one again overnight and a very intense 973 millibar low pressure system was located over Monmouth County, New Jersey at 2 a.m. At 8 a.m. EDT on the 16th the nor'easter was down to 968 millibars and located over New York City. That was a drop in central pressure of 28 millibars in 24 hours which qualified it as a meteorological bomb (a drop in central pressure of at least 24 millibars in 24 hours) low pressure system. The nor'easter bottomed at a pressure of about 966 millibars (28.53 inches) at 11 a.m. EDT just south of Long Island, New York. To put into prospective how low the pressure was with this nor'easter, that central pressure is near the border of the pressure defined category 2 and category 3 hurricane once used on the Saffir-Simpson Hurricane Scale. As the 16th continued, the nor'easter weakened and meandered across southwest New England and the New York and New Jersey coastal waters. By 2 a.m. EDT on the 17th, the nor'easter's central pressure rose to 988 millibars and a second storm formed on the triple point of its fronts south of Nova Scotia. This became the main low pressure system. The low pressure system then slowly moved southeast over the next couple of days. The heaviest precipitation fell as the low pressure system was rapidly intensifying on the 15th into the early part of the 16th. The strongest winds ceased after the low pressure system started to fill on the afternoon of the 16th. An intense nor'easter brought heavy rain and flooding to Eastern Pennsylvania on the 15th and strong to high winds as well as some snow to the region on the 16th. Event Narrative: Heavy rain caused flooding along low lying areas and roadways near the Schuylkill River as well as mainly in the Perkiomen,Pennypack and Wissahickon Basins. About a dozen major roadways were closed due to flooding. Creek flooding also closed some smaller roadways. The Schuylkill River forced the closure of roadways in Conshohocken, Lower Merion, West Norriton and Norristown. Creek flooding closed roadways in Lower Moreland, Skippack, Upper Frederick, Upper Merion, Upper Moreland and Whitemarsh Townships. |The Schuylkill River in Philadelphia was above it 11 foot flood stage from 703 p.m. EDT on the 15th through 430 p.m. It crested at 11.34 feet at 1030 p.m. EDT on the 15th. The Manatawny Creek at Pottstown was above its 6 foot flood stage from 1252 p.m. EDT through 957 p.m. it crested at 6.67 feet at 345 p.m. EDT. Additional heavy rain overnight forced the Manatawny Creek over its banks again. The Manatawny Creek at Pottstown was again over its 6 foot flood stage from 603 a.m. EDT through 852 a.m. It crested at 6.11 feet at 7 a.m. The East Branch of the Perkiomen at Schwenksville was above its 7 foot flood stage from 1006 a.m. EDT on the 15th through 141 p.m. It crested at 9.3 feet at 500 p.m. The main stem of the Perkiomen Creek at East Greenville was above its 4 foot flood stage from 103 p.m. EDT on the 15th through 648 p.m. It crested at 4.21 feet at 430 p.m. Additional heavy rain caused the Perkiomen to flood the following morning. The Perkiomen Creek at East Greenville was above its 4 foot flood stage from 521 a.m. EDT on the 16th through 831 a.m. It crested at 4.26 feet at 700 a.m. Farther downstream, the Perkiomen Creek at Graterford was above its 11 foot flood stage from 142 p.m. EDT on the 15th through 1220 p.m. It crested at 12.43 feet at 630 p.m. The Wissahickon Creek at Fort Washington was above its 9 foot flood stage from 847 a.m. EDT on the 15th through 134 a.m. It crested at 11.17 feet at 515p.m. Additional heavy rain caused the Wissahickon to flood the following morning. The Wissahickon Creek at Fort Washington was above its 9 foot flood stage from 424 a.m. EDT on the 16th through 1001 a.m. It crested at 10.75 feet at 615 a.m. EDT on the 16th.|Precipitation totals included 5.63 inches in Norristown, 4.99 inches in Souderton, 4.69 inches in Wynnewood, 4.67 inches in Eagleville, 4.44 inches in Hatboro, and 4.15 inches in Pottstown. Snowfall totals included 1.5 inches in Rosemont and Wynnewood.| The flooding in Chester County was centered around the Brandywine Creek at its tributaries. Along the main stem of the Brandywine, Pennsylvania State Routes 926 and 100 were closed in Pocopson Township, State Route 100 and Creek Road were closed in Birmingham Township and Brandywine Creek Road was closed in East Bradford Township. Flood waters from the Brandywine ripped a 50 foot stretch of Brandywine Creek Road in Newlin Township. Flooding problems also occurred around West Chester. Flooding caused a fire at a PECO Energy substation in West Whiteland Township.|  |The East Branch of the Brandywine River at Downingtown was above its 7 foot flood stage from 911 a.m. EDT on the 15th through 1112 p.m. It crested at 9.48 feet at 245 p.m. A second shot of heavier rain caused additional flooding the next day. The East Branch of the Brandywine River at Downingtown was above its 7 foot flood stage again from 257 a.m. EDT on the 16th through 420 p.m. It crested at 8.51 feet at 745 a.m. The main stem of the Brandywine Creek at Chadds Ford was above its 9 foot flood stage from 155 p.m. EDT on the 15th through 907 p.m. It crested at 10.46 feet at 1015 p.m. The French Creek at Phoenixville was above its 8 foot flood stage from 1013 a.m. EDT on the 15th through 1200 a.m. It crested at 8.60 feet at 345 p.m. Additional heavy rain caused the creek to flood again the next morning. The French Creek at Phoenixville was above its 8 foot flood stage from 430 a.m. EDT on the 16th through 915 a.m. It crested at 8.16 feet at 345 p.m. The Valley Creek at Valley Forge was above its 7 foot flood stage from 901 a.m. EDT on the 15th through 806 p.m. It crested at 8.08 feet at 315 p.m. EDT on the 15th.|Precipitation totals included 4.97 inches in West Chester, 4.41 inches in Honey Brook, 4.19 inches in Glenmoore, and 3.65 inches in Coatesville. Snow accumulations 2.0 inches in East Nantmeal Township and 0.5 inches in Coatesville.| The heavy rain caused flooding across Bucks County with the worst reported flooding along the Neshaminy Creek. Ground floor apartments, roadways and basements flooded in floods prone areas along the creek in Bensalem, Bristol, Middletown, Hulmeville and Northamptom. In Middletown Township, the creek flooded two roadways with six feet of water and vehicles that were not moved along Bridle Drive were totally flooded. |Flooding also occurred along the Delaware River, but mainly roadway and low-lying area as none of the gaged sites along the river reached flood stage. Voluntary evacuations occurred in Falls Township (Wellington Woods Development) and in New Hope (Waterview Development). Road closures and basement flooding occurred along the Delaware River in Bridgeton, Tinicum, New Hope, Upper Makefield, Yardley and Lower Makefield. In Yardley, the Delaware River flooded roadways in the Rivermawr section. |Flooding also severely affected Bristol Township, but was not related to either the Neshaminy Creek or Delaware River. About 50 homes and apartments suffered extensive damage. Twenty homes were inaccessible and family had to be rescued by boat. The Croydon section of the township was hit hard on Spencer, Lincoln, Swan and Dixon Avenues as well as Penn and Franklin Streets. The Lakeview Manor Apartments were evacuated near Silver Lake Park. |Elsewhere in the county, Martins Creek overeflowed in Tullytown and the Tohickon Creek flooded in Bedminster. Roadways were also closed in Buckingham, Doylestown, Perkasie and Upper Southampton.|The Neshaminy Creek at Langhorne was above its 9 foot flood stage from 1129 a.m. EDT on the 15th through 711 p.m. It crested at 14.68 feet at 145 a.m. This was the highest crest since June 17th, 2001.|Precipitation totals included 6.12 inches in Neshaminy Falls, 5.60 inches in Morrisville, 5.51 inches in Doylestown, 5.47 inches in Furlong, 5.26 at Doylestown Airport, 4.96 inches in Perkasie, 4.87 inches in Southampton, 4.70 inches in Springtown, and 3.99 inches in Sellersville. The heavy rain caused roadway and basement flooding in Delaware County on the 15th. Flooding approached several homes near Crum Creek in Marple Township. Flooding from Chester Creek inundated four roads within Chester. Two roads were closed because of Brandywine Creek flooding in Chadds Ford. The Darby Creek flooded parking lots off of Mill Street and Walnut Street in Darby Borough and Hook Road in Darby Township. Pennsylvania State Route 291 was closed between Eddystone and Ridley Township and the ramps to Interstate 95 were flooded in Yeadon Borough. Flooding was also reported along Cobbs Creek along the border with Philadelphia. Trolley tracks were under water on the Sharon Hill-102 line between Collingdale and Sharon Hill. |The Brandywine Creek at Chadds Ford was above its 9 foot flood stage from 155 p.m. The Chester Creek at Chester was above its 8 foot flood state from 934 a.m. EDT through 1034 p.m. It crested at 10.42 feet at 800 p.m. The Crum Creek at Newtown Square was above its 6 foot flood stage from 932 a.m. EDT on the 15th through 651 p.m. It crested at 7.23 feet at 300 p.m. EDT on the 15th.|Precipitation totals included 6.04 inches in Media, 6.00 inches in Boothwyn, and 5.60 inches in Drexel Hill. Snowfall totals included 1.5 inches in both Drexel Hill and Havertown. The heavy rain led to flooding along the Schuylkill River and smaller creeks within Philadelphia. Kelly and Lincoln Drives near the Schuylkill River were flooded and closed. Flooding was also reported along Roosevelt Boulevard and Flat Rock Road. The heavy rain caused the rest of a retaining wall behind a Lyceum Avenue to collapse. Basements were flooded along the Schuylkill River in the Roxborough section of the city. Flooding was reported along Cobbs Creek, especially at 70th Street and Woodland Avenue. The heavy rain caused many flight delays at the Philadelphia International Airport and about 80 cancelled flights. |The Schuylkill River at Philadelphia was above it 11 foot flood stage from 703 p.m. The Pennypack Creek at the Rhawn Street Bridge was above its 7 foot flood stage from 903 a.m. EDT on the 15th through 1112 a.m. It crested at 10.34 feet at 800 p.m. The Wissahickon Creek at its mouth was above its 5 foot flood stage from 951 a.m. EDT on the 15th through 424 p.m. It crested at 7.32 feet at 745 p.m. Precipitation totals included 6.22 inches in Roxborough, 5.90 inches at the Northeast Philadelphia Airport and 5.09 inches at the Philadelphia International Airport.|