Alert archive / Pennsylvania / Flash Flood Warnings in 2020

Flash Flood Warning 40, NWS Philadelphia/Mount Holly

August 4, 20205 counties in Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 4, 2020, 10:20 AM EDT for 5 counties in Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 4 hr. 60 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 4, 2020, 10:20 AM EDT (14:20 UTC)
Expired
Aug 4, 2020, 2:15 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 83 km from the middle of the area, began a volume at 14:22 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 4, 10:30 AM EDTFLASH FLOOD1 Ne Lawrence Park, PADARBY CREEK ROAD CLOSED NEAR LAWRENCE ROAD FROM FLASH FLOODING. TIME BASED ON DISPATCH REPORT.
Aug 4, 10:37 AM EDTFLASH FLOOD1 N Trout Lake, PAFLASH FLOODING CLOSED BRYN MAWR AVENUE NEAR MILL ROAD. TIME BASED ON DISPATCH REPORT.
Aug 4, 10:39 AM EDTFLOOD1 Se Roxborough, PAFLOODING ON INTERSTATE 76 NEAR THE MONTGOMERY DRIVE EXIT WITH LANE RESTRICTIONS IN PLACE. TIME BASED ON DISPATCH REPORT.
Aug 4, 10:40 AM EDTFLASH FLOOD1 Ssw Summerdale, PATHE GAUGE ON FRANKFORD CREEK AT PHILADELPHIA REACHED MODERATE FLOOD STAGE WHEN IT CRESTED AT 9.81 FT THIS AFTERNOON.
Aug 4, 10:44 AM EDTFLASH FLOOD1 Ssw Mantua, PAFLOODING ON UNIVERSITY AVENUE NEAR 38TH STREET WITH SEVERAL ROAD CLOSURES AND LANE RESTRICTIONS IN THE AREA. TIME BASED ON DISPATCH REPORT.
Aug 4, 10:46 AM EDTHEAVY RAIN 3.451 N Wyola, PAMESONET STATION NETWN NEWTOWN (JHS).
Aug 4, 10:59 AM EDTHEAVY RAIN 3.191 Sw Willistown Twp, PAMESONET STATION AS641 WESTTOWN.
Aug 4, 11:00 AM EDTFLASH FLOOD1 Nw Springfield Twp, PAFLOODING NEAR OLD MARPLE ROAD AND STATE HIGHWAY 320 WITH SEVERAL ROAD CLOSURES IN THE AREA. TIME BASED ON DISPATCH REPORTS.
Aug 4, 11:00 AM EDTHEAVY RAIN 3.32Bridgeport, PAMESONET STATION NRSP1 NORRISTOWN.
Aug 4, 11:06 AM EDTHEAVY RAIN 6Skippack, PAONE INCH PAST 15 MINUTES.
Aug 4, 11:15 AM EDTFLASH FLOOD1 Ssw King Of Prussia, PAFLOODING FORCED CLOSURES ON INTERSTATE 76 NEAR THE U.S. HIGHWAY 202 INTERCHANGE. TIME BASED ON DISPATCH REPORT.
Aug 4, 11:15 AM EDTFLASH FLOOD1 S Upper Hanover Twp, PAUSGS GAUGE ON PERKIOMEN CREEK AT EAST GREENVILE CRESTED AT 9.57 FT AT 3:46 PM (AFTER HITTING MINOR FLOOD AT 11:15 AM) WHICH IS ABOVE MAJOR FLOOD STAGE.
Aug 4, 11:15 AM EDTFLASH FLOOD1 Wnw Penn Wynne, PAFLASH FLOODING CLOSED HAVERFORD ROAD NEAR KARAKUNG DRIVE. TIME BASED ON DISPATCH REPORT.
Aug 4, 11:26 AM EDTHEAVY RAIN 2.21 Ese Ashland, NJMESONET STATION CW4621 VOORHEES.
Aug 4, 11:30 AM EDTHEAVY RAIN 5.281 Se Collegeville, PAMESONET STATION DW7361 COLLEGEVILLE.
Aug 4, 11:32 AM EDTFLOOD2 Ese South Philadelphi, PAFLOODING ON I-95 NEAR STATE HIGHWAY 611. TIME BASED ON DISPATCH REPORT.
Aug 4, 11:39 AM EDTFLASH FLOODMantua, NJCORRECTS PREVIOUS TROPICAL STORM REPORT FROM MANTUA. FLASH FLOODING ON STATE HIGHWAY 45 NEAR BERKELEY ROAD. ALL LANES CLOSED. TIME BASED ON DISPATCH REPORT.
Aug 4, 11:45 AM EDTFLASH FLOOD2 Ene Schwenksville, PATHE GAUGE ON THE EAST BRANCH PERKIOMEN CREEK AT SCHWENKSVILLE REACHED FLOOD STAGE AT 1145 AM AND CRESTED AT 13.20 FEET (MAJOR FLOODING) AT 645 PM ON AUGUST 4.
Aug 4, 11:45 AM EDTFLASH FLOODBridgeport, PATHE GAUGE ON THE SCHUYLKILL RIVER IN NORRISTOWN REACHED FLOOD STAGE AT 1145 AM ON AUGUST 4 AND CRESTED AT 20.55 FEET (MAJOR FLOODING) AT 1200 AM ON AUGUST 5.
Aug 4, 11:45 AM EDTHEAVY RAIN 3.63South Pottstown, PAMESONET STATION PTNP1 SOUTH POTTSTOWN.
Aug 4, 11:46 AM EDTFLASH FLOOD2 Sw Pennsburg, PAGAUGE ON THE WEST BRANCH OF THE PERKIOMEN CREEK AT HILLEGASS CRESTED AT 6.68 FT AT 12:45PM (AFTER REACHING MINOR FLOOD AT 11:46). THE CREST WAS IN THE MODERATE FLOOD CATEGORY.
Aug 4, 11:50 AM EDTFLASH FLOOD2 Se Oaks, PAFLASH FLOODING CLOSED STATE HIGHWAY 363 NEAR AUDUBON ROAD. TIME BASED ON DISPATCH REPORT.
Aug 4, 11:50 AM EDTHEAVY RAIN 4.511 Ese Eagleville, PAMESONET STATION AP069 EAGLEVILLE.
Aug 4, 11:52 AM EDTHEAVY RAIN 5.031 Nw East Norriton, PAMESONET STATION EW6703 EAST NORRITON.
Aug 4, 11:54 AM EDTHEAVY RAIN 2.082 Nnw Medford Twp., NJASOS STATION KVAY MOUNT HOLLY.
Aug 4, 12:00 PM EDTFLASH FLOODKing Of Prussia, PAFLOODING ON U.S. HIGHWAY 202 NEAR THE I-76 INTERCHANGE WITH ROAD CLOSURES IN THE AREA. TIME BASED ON DISPATCH REPORT.
Aug 4, 12:00 PM EDTFLASH FLOODSkippack Twp, PASEVERAL WATER RESCUES WITHING SKIPPACK TOWNSHIP.
Aug 4, 12:00 PM EDTFLASH FLOODSpring City, PAWATER FLOWING ON ROADWAY IN SPRING CITY.
Aug 4, 12:00 PM EDTHEAVY RAIN 2.32Medford Twp., NJMESONET STATION MEDN4 MEDFORD TWP.
Aug 4, 12:00 PM EDTHEAVY RAIN 5.34Graterford, PAMESONET STATION GRAP1 GRATERFORD.
Aug 4, 12:00 PM EDTHEAVY RAIN 6.31Skippack Twp, PA
Aug 4, 12:02 PM EDTFLASH FLOODGraterford, PATHE GAUGE ON PERKIOMEN CREEK AT GRATERFORD REACHED FLOOD STAGE AT 1202 PM AND CRESTED AT 19.14 FEET (RECORD FLOODING) AT 815 PM ON AUGUST 4.
Aug 4, 12:07 PM EDTHEAVY RAIN 5.692 S East Nantmeal Twp, PAMESONET STATION FW0827 GLENMOORE.
Aug 4, 12:13 PM EDTHEAVY RAIN 6.43Belmont Hills, PAMESONET STATION EW4529 BALA CYNWYD.
Aug 4, 12:15 PM EDTHEAVY RAIN 2.671 Nnw Rockledge, PAMESONET STATION FW0421 WILLOW GROVE.
Aug 4, 12:15 PM EDTHEAVY RAIN 3.421 Nnw Lima, PAMESONET STATION FW6794 MEDIA.
Aug 4, 12:15 PM EDTHEAVY RAIN 3.651 Nw Willow Grove, PAMESONET STATION FW1161 WILLOW GROVE.
Aug 4, 12:15 PM EDTHEAVY RAIN 5.621 Sse New Hanover Twp, PAMESONET STATION FW2483 NEW HANOVER.
Aug 4, 12:16 PM EDTHEAVY RAIN 5.211 W Easttown Twp, PAMESONET STATION EW0301 BERWYN.
Aug 4, 12:19 PM EDTHEAVY RAIN 4.26North Coventry Twp, PAMESONET STATION AS655 POTTSTOWN.
Aug 4, 12:20 PM EDTFLASH FLOODNorth Coventry Twp, PANUMEROUS WATER RESCUES AND BASEMENT FLOODING. 6.72 INCHES OF RAIN HAS FALLEN.
Aug 4, 12:21 PM EDTHEAVY RAIN 4.851 S North Coventry Twp, PAMESONET STATION PTNCT NORTH COVENTRY TWP.
Aug 4, 12:22 PM EDTHEAVY RAIN 6.1Ambler, PAREPORTED AT AMBLER.
Aug 4, 12:30 PM EDTFLASH FLOODExton, PAFLOODING NEAR THE INTERSECTION OF BUSINESS U.S. HIGHWAY 30 AND STATE HIGHWAY 100 IN EXTON. SEVERAL ROAD CLOSURES IN PLACE. TIME BASED ON SOCIAL MEDIA AND RADAR.
Aug 4, 12:30 PM EDTHEAVY RAIN 2.191 Se Turnersville, NJMESONET STATION EW0923 TURNERSVILLE.
Aug 4, 12:30 PM EDTHEAVY RAIN 2.251 Wnw Gloucester Twp, NJMESONET STATION DW4067 GLENDORA.
Aug 4, 12:30 PM EDTHEAVY RAIN 2.711 E Willow Grove, PAMESONET STATION EW1527 WILLOW GROVE.
Aug 4, 12:30 PM EDTHEAVY RAIN 4.821 Ssw Cedarville, PAMESONET STATION EW5860 POTTSTOWN.
Aug 4, 12:30 PM EDTHEAVY RAIN 5.28Phoenixville, PAMESONET STATION EW4075 PHOENIXVILLE.
Aug 4, 12:30 PM EDTHEAVY RAIN 5.49East Nantmeal Twp, PA
Aug 4, 12:33 PM EDTFLASH FLOODUwchlan Twp, PAFLASH FLOODING CLOSED SHIP ROAD NEAR NEWCOMEN ROAD. TIME BASED ON DISPATCH REPORT.
Aug 4, 12:33 PM EDTHEAVY RAIN 6.141 Wsw Ambler, PAMESONET STATION AR075 AMBLER.
Aug 4, 12:35 PM EDTHEAVY RAIN 4.812 Ese Sanatoga, PAASOS STATION KPTW POTTSTOWN.
Aug 4, 12:38 PM EDTHEAVY RAIN 4.682 S East Goshen Twp., PAMESONET STATION AT593 WEST CHESTER.
Aug 4, 12:40 PM EDTHEAVY RAIN 4.291 Nnw Oreland, PAMESONET STATION EW7157 FORT WASHINGTON.
Aug 4, 12:40 PM EDTHEAVY RAIN 4.55Hatfield, PAMESONET STATION CW2718 HATFIELD.
Aug 4, 12:40 PM EDTHEAVY RAIN 4.681 Nw Conshohocken, PAMESONET STATION 6809D 1 NW CONSHOHOCKEN.
Aug 4, 12:40 PM EDTHEAVY RAIN 5.19Royersford, PAMESONET STATION RYRSF ROYERSFORD (ES).
Aug 4, 12:40 PM EDTHEAVY RAIN 5.222 N East Goshen Twp., PAMESONET STATION FW6193 MALVERN.
Aug 4, 12:40 PM EDTHEAVY RAIN 5.99Swarthmore, PAMESONET STATION DW9584 SWARTHMORE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 2.3 hours before the alert went out and 229 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2020-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1593 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2020-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1593 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
570 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
1.5
Supercell composite
7.4

Open this sounding in Storm Lab

The text

As transmitted.

267 
WGUS51 KPHI 041420
FFWPHI
NJC005-007-015-PAC017-029-045-091-101-041815-
/O.NEW.KPHI.FF.W.0040.200804T1420Z-200804T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1020 AM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a

* Flash Flood Warning for...
  Camden County in southern New Jersey...
  Northeastern Gloucester County in southern New Jersey...
  Northwestern Burlington County in southern New Jersey...
  Montgomery County in southeastern Pennsylvania...
  Southeastern Bucks County in southeastern Pennsylvania...
  Northeastern Chester County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...
  Delaware County in southeastern Pennsylvania...

* Until 215 PM EDT.

* At 1015 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain just south of the warned area. Two to three inches of 
  rain have been falling in about one hour with these storms. The 
  heavy rain was moving north and will move into the warned area 
  shortly. Flash flooding will likely occur as a result.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

* Some locations that could experience flooding include...
  Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
  Laurel, Norristown, Chester, Willingboro, Deptford, Voorhees,
  Medford, Pottstown, West Deptford, Lindenwold, Phoenixville,
  Lansdale, West Norriton, Hammonton and East Norriton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

Turn around...don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4025 7569 4044 7553 3987 7457 3961 7487
      4014 7587

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR

$$

Kruzdlo
1 follow-up statement
396 
WGUS71 KPHI 041803
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
203 PM EDT Tue Aug 4 2020

NJC005-007-015-041811-
/O.CAN.KPHI.FF.W.0040.000000T0000Z-200804T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Camden NJ-Gloucester NJ-Burlington NJ-
203 PM EDT Tue Aug 4 2020

...THE FLASH FLOOD WARNING FOR CAMDEN...NORTHEASTERN GLOUCESTER AND
NORTHWESTERN BURLINGTON COUNTIES IS CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 4025 7569 4044 7553 4007 7491 4005 7497
      3998 7508 3996 7513 3990 7513 3985 7525
      3985 7532 4014 7587

$$

PAC017-029-045-091-101-041815-
/O.CON.KPHI.FF.W.0040.000000T0000Z-200804T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery PA-Bucks PA-Chester PA-Philadelphia PA-Delaware PA-
203 PM EDT Tue Aug 4 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR
MONTGOMERY...SOUTHEASTERN BUCKS...NORTHEASTERN CHESTER...PHILADELPHIA
AND DELAWARE COUNTIES...

At 201 PM EDT, gauge reports indicated flooding occuring on many of 
the smaller creeks and streams. Up to 5 inches of rain fell with the 
earlier heavy rain. Any additional rain should be light, but it will 
take time for the runoff to recede. Flash flooding is already 
occurring.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Automated gauges.

IMPACT...Flooding of small creeks and streams, urban areas, 
         highways, streets and underpasses as well as other drainage 
         and low lying areas.

Some locations that could experience flooding include...
Philadelphia, Camden, Norristown, Pottstown, Phoenixville, Lansdale,
West Norriton, East Norriton, Yeadon, Conshohocken, Palmyra, Hatboro,
Souderton, Folcroft, Ambler, Swarthmore, Paulsboro, Collegeville,
Royersford and Jenkintown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

Turn around...don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4025 7569 4044 7553 4007 7491 4005 7497
      3998 7508 3996 7513 3990 7513 3985 7525
      3985 7532 4014 7587

FLASH FLOOD...GAUGE INDICATED

$$

SFJ

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 5:17 AM EDTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Aug 4, 7:23 AM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia20 min
Aug 4, 7:28 AM EDTFlash Flood WarningPHIChester, Delaware, Montgomery3 hr
Aug 4, 8:11 AM EDTFlash Flood WarningPHIBucks, Lehigh, Montgomery, Northampton4 hr
Aug 4, 8:19 AM EDTRiver Flood WarningPHIDelaware15 hr
Aug 4, 8:19 AM EDTTornado WarningPHIBucks26 min
Aug 4, 9:23 AM EDTTornado Warning Tornado observedPHIChester22 min
Aug 4, 9:29 AM EDTTornado WarningPHIMonroe, Northampton31 min
Aug 4, 9:38 AM EDTFlash Flood WarningPHIMonroe, Northampton4 hr
Aug 4, 9:58 AM EDTTornado WarningPHIMonroe16 min
Aug 4, 10:02 AM EDTFlash Flood WarningPHIChester, Delaware4 hr
Aug 4, 10:51 AM EDTTornado WarningPHIMontgomery24 min
Aug 4, 11:01 AM EDTFlash Flood WarningPHIBucks4 hr
Aug 4, 11:13 AM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 hr
Aug 4, 11:43 AM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton4 hr
Aug 4, 12:06 PM EDTRiver Flood WarningPHIChester11 hr
Aug 4, 12:37 PM EDTRiver Flood WarningPHIMontgomery14 hr
Aug 4, 12:48 PM EDTRiver Flood WarningPHIChester, Delaware24 hr
Aug 4, 1:01 PM EDTRiver Flood WarningPHIBucks18 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIBerks10 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIMontgomery26 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIChester, Montgomery, Philadelphia43 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIMontgomery, Philadelphia35 hr
Aug 4, 1:59 PM EDTAreal Flood WarningPHIChester, Delaware9 hr
Aug 4, 2:09 PM EDTAreal Flood WarningPHIBerks, Chester, Delaware, Montgomery, Philadelphia15 hr
Aug 4, 2:23 PM EDTRiver Flood WarningPHILehigh16 hr
Aug 4, 2:47 PM EDTAreal Flood WarningPHIBucks9 hr
Aug 4, 3:42 PM EDTAreal Flood WarningPHILehigh, Northampton4 hr
Aug 4, 4:39 PM EDTRiver Flood WarningPHIMonroe6 hr
Aug 4, 7:29 PM EDTAreal Flood WarningPHILehigh, Northampton12 hr
Aug 3, 8:07 PM EDTSpecial Weather StatementPHIHunterdon, Somerset, Warren23 min
Aug 3, 8:26 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset34 min
Aug 3, 9:02 PM EDTSpecial Weather StatementPHIMorris28 min
Aug 4, 5:55 AM EDTSpecial Marine WarningPHI21 min
Aug 4, 8:38 AM EDTSpecial Marine WarningPHI52 min
Aug 4, 9:16 AM EDTTornado WarningPHICumberland18 min
Aug 4, 9:28 AM EDTSpecial Marine WarningPHI32 min
Aug 4, 9:31 AM EDTSpecial Marine WarningPHI59 min
Aug 4, 9:42 AM EDTTornado WarningPHIAtlantic, Cape May19 min
Aug 4, 10:15 AM EDTTornado WarningPHIAtlantic, Burlington, Ocean14 min
Aug 4, 11:00 AM EDTTornado Warning Tornado observedPHIMonmouth, Ocean11 min
Aug 4, 11:59 AM EDTAreal Flood AdvisoryPHIHunterdon, Middlesex, Monmouth, Morris, Somerset4 hr
Aug 4, 2:33 PM EDTRiver Flood WarningPHIHunterdon, Somerset5 hr
Aug 4, 4:37 PM EDTAreal Flood WarningPHICumberland, Salem10 hr
Aug 4, 5:04 PM EDTSmall Craft AdvisoryPHI14 hr
Aug 4, 5:30 PM EDTCoastal Flood StatementPHIOcean103 min

Nearby

Flash Flood Warnings in Pennsylvania, 2020Flash Flood Warnings in New Jersey, 2020Every flash flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.