Alert archive / Pennsylvania / Flash Flood Warnings in 2023

Flash Flood Warning 20, NWS Philadelphia/Mount Holly

June 26, 20235 counties in Pennsylvania; Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 26, 2023, 11:35 PM EDT for 5 counties in Pennsylvania; Mercer County, New Jersey. It was in force for 6 hr. 19 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
Jun 26, 2023, 11:35 PM EDT (03:35 UTC)
Expired
Jun 27, 2023, 5:45 AM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 03:36 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
Jun 26, 11:55 PM EDTFLOODRittenhouse Square, PAFlooding on Broad Street in Center City. Time given in report.
Jun 26, 11:55 PM EDTFLOODRittenhouse Square, PAFlooding on Broad Street in Center City. Time given in report.
Jun 27, 12:45 AM EDTFLOOD1 W Tioga, PAFlooding on US 1 northbound at Exit: I-76 EAST - CENTRAL PHILA/ROOSEVELT EXPWY. There is a ramp closure. Time given in report.
Jun 27, 12:45 AM EDTFLOOD1 W Tioga, PAFlooding on US 1 northbound at Exit: I-76 EAST - CENTRAL PHILA/ROOSEVELT EXPWY. There is a ramp closure. Time given in report.
Jun 27, 1:30 AM EDTFLASH FLOOD1 Nne Marshallton, PAThe East Branch Brandywine Creek gauge at Downingtown reached minor flood stage.
Jun 27, 1:30 AM EDTFLASH FLOOD1 Nne Marshallton, PAThe East Branch Brandywine Creek gauge at Downingtown reached minor flood stage.
Jun 27, 1:33 AM EDTFLASH FLOODWest Whiteland Twp, PAWater rescue Exton Square Parkway and Exton Commons. Time based on dispatch time.
Jun 27, 1:33 AM EDTFLASH FLOODWest Whiteland Twp, PAWater rescue Exton Square Parkway and Exton Commons. Time based on dispatch time.
Jun 27, 2:08 AM EDTFLASH FLOOD2 Sw East Whiteland Twp, PAWater rescue eastbound Route 30 bypass to northbound Route 202. Time based on dispatch time.
Jun 27, 2:08 AM EDTFLASH FLOOD2 Sw East Whiteland Twp, PAWater rescue eastbound Route 30 bypass to northbound Route 202. Time based on dispatch time.
Jun 27, 2:10 AM EDTFLASH FLOOD2 Sw East Whiteland Twp, PARoute 202 northbound lanes closed near the Route 30 junction due to flooding.
Jun 27, 2:10 AM EDTFLASH FLOOD2 Sw East Whiteland Twp, PARoute 202 northbound lanes closed near the Route 30 junction due to flooding.
Jun 27, 2:10 AM EDTFLASH FLOODWest Chester, PAGay Street closed at Montgomery Avenue due to flooding.
Jun 27, 2:10 AM EDTFLASH FLOODWest Chester, PAGay Street closed at Montgomery Avenue due to flooding.
Jun 27, 2:10 AM EDTFLASH FLOODWest Whiteland Twp, PAReport from 911 call center of several secondary roads flooded near the Exton Square mall.
Jun 27, 2:10 AM EDTFLASH FLOODWest Whiteland Twp, PAReport from 911 call center of several secondary roads flooded near the Exton Square mall.
Jun 27, 2:45 AM EDTFLASH FLOOD2 Wsw Newtown Twp, PAThe Crum Creek gauge at Newtown Square reached minor flood stage.
Jun 27, 4:00 AM EDTFLASH FLOOD1 Sse Manayunk, PAThe Wissahickon Creek gauge at Wissahickon reached minor flood stage.
Jun 27, 4:16 AM EDTFLASH FLOODGreen Ridge, PAThe Chester Creek gauge at Chester reached minor flood stage.

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

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.6 hours before the alert went out and 215 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, Washington/Dulle, VA at 00:00Z on 2023-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1362 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, Washington/Dulle, VA at 00:00Z on 2023-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
1362 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

470 
WGUS51 KPHI 270335
FFWPHI
NJC021-PAC017-029-045-091-101-270745-
/O.NEW.KPHI.FF.W.0020.230627T0335Z-230627T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1135 PM EDT Mon Jun 26 2023

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Southwestern Mercer County in central New Jersey...
  Southeastern Bucks County in southeastern Pennsylvania...
  Southeastern Chester County in southeastern Pennsylvania...
  Delaware County in southeastern Pennsylvania...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...

* Until 345 AM EDT.

* At 1135 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 2 inches of rain have fallen. The expected rainfall rate is 
  0.5 to 1 inch in 1 hour. Additional rainfall amounts of 0.5 to 1 
  inch are possible in the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and 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 may experience flash flooding include...
  Philadelphia, Trenton, Camden, West Chester, Bensalem, Ewing, 
  Norristown, Chester, Phoenixville, Lansdale, West Norriton, and 
  East Norriton.

This includes the following highways...
	Pennsylvania Turnpike between mile markers 315 and 359.
	Interstate 95 in Pennsylvania between mile markers 0 and 40.
	Interstate 76 in Pennsylvania between mile markers 327 and 351.
	Interstate 295 in New Jersey between mile markers 58 and 76.
	Interstate 195 in New Jersey between mile markers 0 and 3.
	Interstate 676 in Pennsylvania between mile markers 0 and 1.
	Interstate 476 in Pennsylvania between mile markers 0 and 19.
	Northeast Extension between mile markers 21 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles. Be especially cautious at night when 
it is harder to recognize the dangers of flooding.

&&

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4029 7469 4017 7466 4018 7471 4013 7474
      4013 7482 4008 7486 4001 7505 3996 7513
      3988 7515 3985 7534 3980 7542 3984 7552
      3983 7564 3979 7572 3972 7577

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

Staarmann
4 follow-up statements
464 
WGUS71 KPHI 270419
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1219 AM EDT Tue Jun 27 2023

NJC021-PAC017-029-045-091-101-270745-
/O.CON.KPHI.FF.W.0020.000000T0000Z-230627T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mercer NJ-Bucks PA-Chester PA-Delaware PA-Montgomery PA-Philadelphia
PA-
1219 AM EDT Tue Jun 27 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM EDT EARLY THIS 
MORNING FOR SOUTHWESTERN MERCER, SOUTHEASTERN BUCKS, SOUTHEASTERN 
CHESTER, DELAWARE, SOUTHEASTERN MONTGOMERY, AND PHILADELPHIA 
COUNTIES...

At 1219 AM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 1 
and 2.5 inches of rain have fallen. The expected rainfall rate is 
0.5 to 1 inch in 1 hour. Additional rainfall amounts of 0.5 to 1 
inch are possible in the warned area. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and 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 may experience flash flooding include...
  Philadelphia, Trenton, Camden, West Chester, Bensalem, Ewing, 
  Norristown, Chester, Phoenixville, Lansdale, West Norriton, and 
  East Norriton.

This includes the following highways...
	Pennsylvania Turnpike between mile markers 314 and 359.
	Interstate 95 in Pennsylvania between mile markers 0 and 40.
	Interstate 76 in Pennsylvania between mile markers 327 and 351.
	Interstate 295 in New Jersey between mile markers 59 and 76.
	Interstate 195 in New Jersey between mile markers 0 and 3.
	Interstate 676 in Pennsylvania between mile markers 0 and 1.
	Interstate 476 in Pennsylvania between mile markers 0 and 19.
	Northeast Extension between mile markers 21 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles. Be especially cautious at night when 
it is harder to recognize the dangers of flooding.

&&

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4029 7469 4017 7466 4018 7471 4013 7474
      4013 7482 4008 7486 4001 7505 3996 7513
      3988 7515 3985 7534 3980 7542 3984 7552
      3983 7564 3979 7572 3972 7577

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

Staarmann
231 
WGUS71 KPHI 270609
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
209 AM EDT Tue Jun 27 2023

NJC021-270619-
/O.CAN.KPHI.FF.W.0020.000000T0000Z-230627T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mercer NJ-
209 AM EDT Tue Jun 27 2023

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN MERCER COUNTY...

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

A Flood Watch remains in effect until 300 AM EDT for portions of New 
Jersey...and southeast Pennsylvania.

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4031 7489 4025 7484 4022 7477 4016 7472
      4013 7474 4013 7482 4008 7486 4006 7494
      3996 7513 3988 7515 3985 7534 3980 7542
      3984 7552 3983 7564 3979 7572 3972 7577

$$

PAC017-029-045-091-101-270745-
/O.CON.KPHI.FF.W.0020.000000T0000Z-230627T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Chester PA-Delaware PA-Montgomery PA-Philadelphia PA-
209 AM EDT Tue Jun 27 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM EDT EARLY THIS 
MORNING FOR SOUTHEASTERN BUCKS, SOUTHEASTERN CHESTER, DELAWARE, 
SOUTHEASTERN MONTGOMERY, AND PHILADELPHIA COUNTIES...

At 209 AM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 1 
and 3.5 inches of rain have fallen, with the greatest amounts across 
Chester County. Additional rainfall amounts up to 0.5 inches are 
possible in the warned area. Flash flooding is ongoing or expected 
to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and 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 may experience flash flooding include...
  Philadelphia, Trenton, Camden, West Chester, Bensalem, Ewing, 
  Norristown, Chester, Phoenixville, Lansdale, West Norriton, and 
  East Norriton.

This includes the following highways...
	Pennsylvania Turnpike between mile markers 314 and 359.
	Interstate 95 in Pennsylvania between mile markers 0 and 40.
	Interstate 76 in Pennsylvania between mile markers 327 and 351.
	Interstate 676 in Pennsylvania between mile markers 0 and 1.
	Interstate 476 in Pennsylvania between mile markers 0 and 19.
	Northeast Extension between mile markers 21 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles. Be especially cautious at night when 
it is harder to recognize the dangers of flooding.

&&

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4031 7489 4025 7484 4022 7477 4016 7472
      4013 7474 4013 7482 4008 7486 4006 7494
      3996 7513 3988 7515 3985 7534 3980 7542
      3984 7552 3983 7564 3979 7572 3972 7577

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

Staarmann
381 
WGUS51 KPHI 270717
FFWPHI
PAC017-029-045-091-101-270945-
/O.EXT.KPHI.FF.W.0020.000000T0000Z-230627T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
317 AM EDT Tue Jun 27 2023

The National Weather Service in Mount Holly has extended the

* Flash Flood Warning for...
  Southeastern Bucks County in southeastern Pennsylvania...
  Southeastern Chester County in southeastern Pennsylvania...
  Delaware County in southeastern Pennsylvania...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...

* Until 545 AM EDT.

* At 317 AM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 3.5 inches of rain have fallen. Additional rainfall amounts 
  of 0.5 to 1 inch are possible in the warned area. Flash flooding 
  is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and 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 may experience flash flooding include...
  Philadelphia, Trenton, Camden, West Chester, Bensalem, Ewing, 
  Norristown, Chester, Phoenixville, Lansdale, West Norriton, and 
  East Norriton.

This includes the following highways...
	Pennsylvania Turnpike between mile markers 314 and 359.
	Interstate 95 in Pennsylvania between mile markers 0 and 40.
	Interstate 76 in Pennsylvania between mile markers 327 and 351.
	Interstate 676 in Pennsylvania between mile markers 0 and 1.
	Interstate 476 in Pennsylvania between mile markers 0 and 19.
	Northeast Extension between mile markers 21 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles. Be especially cautious at night when 
it is harder to recognize the dangers of flooding.

&&

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4031 7489 4025 7484 4022 7477 4016 7472
      4013 7474 4013 7482 4008 7486 4006 7494
      3996 7513 3988 7515 3985 7534 3980 7542
      3984 7552 3983 7564 3979 7572 3972 7577

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

Staarmann
423 
WGUS71 KPHI 270939
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
539 AM EDT Tue Jun 27 2023

PAC017-029-045-091-101-270949-
/O.EXP.KPHI.FF.W.0020.000000T0000Z-230627T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Chester PA-Delaware PA-Montgomery PA-Philadelphia PA-
539 AM EDT Tue Jun 27 2023

...FLASH FLOOD WARNING WILL EXPIRE AT 545 AM EDT EARLY THIS MORNING 
FOR SOUTHEASTERN BUCKS, SOUTHEASTERN CHESTER, DELAWARE, SOUTHEASTERN 
MONTGOMERY, AND PHILADELPHIA COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat through this morning. Additional heavy rain is possible again 
this afternoon and evening.

LAT...LON 3972 7585 3984 7584 4004 7568 4037 7509
      4031 7489 4025 7484 4022 7477 4016 7472
      4013 7474 4013 7482 4008 7486 4006 7494
      3996 7513 3988 7515 3985 7534 3980 7542
      3984 7552 3983 7564 3979 7572 3972 7577

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:27 PM EDTSpecial Weather StatementPHIChester33 min
Jun 26, 8:33 PM EDTSpecial Weather StatementPHIPhiladelphia27 min
Jun 26, 8:36 PM EDTSpecial Weather StatementPHIBucks24 min
Jun 26, 8:40 PM EDTSevere Thunderstorm WarningPHIChester31 min
Jun 26, 8:42 PM EDTSevere Thunderstorm WarningPHIBucks48 min
Jun 26, 9:18 PM EDTSevere Thunderstorm WarningPHIBerks42 min
Jun 26, 9:30 PM EDTFlash Flood WarningPHIMonroe, Northampton3 hr
Jun 26, 9:47 PM EDTSevere Thunderstorm WarningPHIChester, Montgomery43 min
Jun 26, 9:51 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Philadelphia54 min
Jun 26, 9:58 PM EDTSevere Thunderstorm WarningPHIChester47 min
Jun 26, 10:33 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia42 min
Jun 26, 10:54 PM EDTAreal Flood AdvisoryPHIBerks, Chester, Delaware, Montgomery, Philadelphia3 hr
Jun 26, 11:07 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia53 min
Jun 26, 11:27 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery, Philadelphia3 hr
Jun 27, 12:00 AM EDTAreal Flood WarningPHIBucks, Lehigh, Monroe, Northampton7 hr
Jun 27, 12:51 AM EDTFlash Flood WarningPHIChester, Montgomery4 hr
Jun 27, 1:23 AM EDTSpecial Weather StatementPHIMontgomery37 min
Jun 27, 2:23 AM EDTRiver Flood WarningPHIChester6 hr
Jun 27, 2:29 AM EDTSpecial Weather StatementPHIDelaware31 min
Jun 27, 3:01 AM EDTSpecial Weather StatementPHIDelaware, Montgomery, Philadelphia29 min
Jun 27, 3:02 AM EDTFlood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more46 min
Jun 27, 3:26 AM EDTRiver Flood WarningPHIDelaware4 hr
Jun 27, 3:48 AM EDTFlood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more17 hr
Jun 27, 3:54 AM EDTRiver Flood WarningPHIChester, Delaware5 hr
Jun 27, 6:14 AM EDTAreal Flood WarningPHIMontgomery, Philadelphia3 hr
Jun 27, 6:16 AM EDTAreal Flood WarningPHIChester, Delaware3 hr
Jun 27, 10:08 AM EDTRiver Flood WarningPHIChester, Delaware109 min
Jun 27, 12:45 PM EDTSpecial Weather StatementPHIBerks30 min
Jun 27, 2:13 PM EDTSevere Thunderstorm WarningPHIChester47 min
Jun 27, 2:18 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe22 min
Jun 27, 2:21 PM EDTSpecial Weather StatementPHIBerks24 min
Jun 27, 2:42 PM EDTAreal Flood AdvisoryPHIBerks3 hr
Jun 27, 2:57 PM EDTAreal Flood AdvisoryPHIChester3 hr
Jun 27, 3:07 PM EDTSevere Thunderstorm WarningPHIBerks38 min
Jun 27, 3:25 PM EDTSevere Thunderstorm WarningPHIChester19 min
Jun 27, 3:33 PM EDTSpecial Weather StatementPHIDelaware27 min
Jun 27, 3:57 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia48 min
Jun 27, 4:06 PM EDTSpecial Weather StatementPHINorthampton24 min
Jun 27, 4:24 PM EDTAreal Flood AdvisoryPHINorthampton3 hr
Jun 27, 4:30 PM EDTSevere Thunderstorm WarningPHIMontgomery, Philadelphia32 min
Jun 27, 4:33 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton42 min
Jun 27, 4:39 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia51 min
Jun 27, 4:58 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery, Philadelphia3 hr
Jun 27, 5:01 PM EDTSevere Thunderstorm WarningPHINorthampton44 min
Jun 27, 5:22 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia38 min
Jun 27, 5:43 PM EDTSpecial Weather StatementPHIMonroe, Northampton32 min
Jun 27, 5:44 PM EDTFlash Flood WarningPHIBucks, Montgomery, Philadelphia5 hr
Jun 27, 5:52 PM EDTAreal Flood AdvisoryPHINorthampton3 hr
Jun 27, 5:57 PM EDTAreal Flood AdvisoryPHIBucks, Delaware, Philadelphia3 hr
Jun 27, 6:15 PM EDTSpecial Weather StatementPHINorthampton45 min
Jun 26, 8:56 PM EDTAreal Flood AdvisoryPHISussex38 min
Jun 26, 8:56 PM EDTSpecial Weather StatementPHIWarren34 min
Jun 26, 9:21 PM EDTSpecial Weather StatementPHIMercer24 min
Jun 26, 9:31 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset44 min
Jun 26, 9:34 PM EDTFlash Flood WarningPHISussex2 hr
Jun 26, 9:46 PM EDTSpecial Marine WarningPHI59 min
Jun 26, 10:07 PM EDTSpecial Weather StatementPHIMiddlesex, Morris23 min
Jun 26, 10:26 PM EDTSevere Thunderstorm WarningPHIMorris16 min
Jun 26, 10:41 PM EDTAreal Flood AdvisoryPHISussex, Warren84 min
Jun 26, 11:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset33 min
Jun 27, 12:12 AM EDTSpecial Weather StatementPHIMonmouth33 min
Jun 27, 12:16 AM EDTSpecial Marine WarningPHI44 min
Jun 27, 1:26 AM EDTSpecial Marine WarningPHI49 min
Jun 27, 2:00 AM EDTSpecial Marine WarningPHI45 min
Jun 27, 4:04 AM EDTRiver Flood WarningPHIMorris22 hr
Jun 27, 11:16 AM EDTAreal Flood AdvisoryPHIMorris, Sussex3 hr
Jun 27, 11:42 AM EDTAreal Flood AdvisoryPHIMonmouth2 hr
Jun 27, 3:05 PM EDTSevere Thunderstorm WarningPHICumberland, Salem40 min
Jun 27, 3:06 PM EDTSpecial Marine WarningPHI54 min
Jun 27, 3:32 PM EDTAreal Flood AdvisoryPHICumberland, Salem3 hr
Jun 27, 3:38 PM EDTSevere Thunderstorm WarningPHICumberland, Salem52 min
Jun 27, 3:41 PM EDTSevere Thunderstorm WarningPHISalem22 min
Jun 27, 3:52 PM EDTSpecial Marine WarningPHI53 min
Jun 27, 4:21 PM EDTSevere Thunderstorm WarningPHICumberland, Salem39 min
Jun 27, 4:36 PM EDTSevere Thunderstorm WarningPHICumberland, Salem26 min
Jun 27, 5:05 PM EDTSpecial Marine WarningPHI25 min
Jun 27, 5:17 PM EDTFlash Flood WarningPHISalem4 hr
Jun 27, 5:23 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem32 min
Jun 27, 5:40 PM EDTSpecial Weather StatementPHIHunterdon, Somerset35 min
Jun 27, 5:45 PM EDTSpecial Weather StatementPHIWarren45 min

Nearby

Flash Flood Warnings in Pennsylvania, 2023Flash Flood Warnings in New Jersey, 2023Every flash flood warning in 2023

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.