Alert archive / New Jersey / Flood Watches in 2022

Flood Watch 4, NWS Philadelphia/Mount Holly

June 2, 2022New Castle County, Delaware; 4 counties in New Jersey; 4 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this flood watch at Jun 2, 2022, 3:07 PM EDT for New Castle County, Delaware; 4 counties in New Jersey; 4 counties in Pennsylvania. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jun 2, 2022, 3:07 PM EDT (19:07 UTC)
Expired
Jun 2, 2022, 8:32 PM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
None

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Bucks County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 19:10 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.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.1 hours before the alert went out and 226 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 12:00Z on 2022-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 138 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 12:00Z on 2022-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.193958Sfc1 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
138 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

260 
WGUS61 KPHI 021907
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mount Holly NJ
307 PM EDT Thu Jun 2 2022

DEZ001-NJZ015-017>019-PAZ070-071-104-106-030200-
/O.NEW.KPHI.FA.A.0004.220602T1907Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Eastern Montgomery-Lower Bucks-
Including the cities of Trenton, Lansdale, Mount Holly, Cherry Hill, 
Moorestown, Morrisville, Wilmington, Philadelphia, Doylestown, 
Camden, Media, Glassboro, and Norristown
307 PM EDT Thu Jun 2 2022

...FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of northern Delaware...New Jersey...and southeast 
  Pennsylvania...including the following areas...in northern 
  Delaware...New Castle. In New Jersey...Camden, Gloucester, Mercer, 
  and Northwestern Burlington. In southeast Pennsylvania...Delaware, 
  Eastern Montgomery, Lower Bucks, and Philadelphia.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers, 
  creeks, streams, and other low-lying and flood-prone locations. 
  Flooding may occur in poor drainage and urban areas. Storm drains 
  and ditches may become clogged with debris.

* ADDITIONAL DETAILS...
  - Thunderstorms with rainfall rates up to 2 inches per hour may
    result in localized flash flooding, especially in urbanized
    locations.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

RCM
4 follow-up statements
666 
WGUS61 KPHI 022154
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
554 PM EDT Thu Jun 2 2022

NJZ015-PAZ106-022300-
/O.CAN.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mercer-Lower Bucks-
Including the cities of Trenton, Morrisville, and Doylestown
554 PM EDT Thu Jun 2 2022

...FLOOD WATCH IS CANCELLED...

The Flash Flood Watch is cancelled for portions of central New 
Jersey...and southeast Pennsylvania...including the following 
areas...in central New Jersey...Mercer. In southeast Pennsylvania...
Lower Bucks.

The flash flooding threat has ended. Therefore, the Flash Flood 
Watch is being cancelled.

$$

DEZ001-NJZ017>019-PAZ070-071-104-030200-
/O.CON.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-Eastern Montgomery-
Including the cities of Glassboro, Mount Holly, Cherry Hill, 
Moorestown, Wilmington, Philadelphia, Camden, Media, Lansdale, and 
Norristown
554 PM EDT Thu Jun 2 2022

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING...

* WHAT...Flash flooding caused by excessive rainfall continues to be 
  possible.

* WHERE...Portions of northern Delaware...southern New Jersey...and 
  southeast Pennsylvania...including the following areas...in 
  northern Delaware...New Castle. In southern New Jersey...Camden, 
  Gloucester, and Northwestern Burlington. In southeast 
  Pennsylvania...Delaware, Eastern Montgomery, and Philadelphia.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers, 
  creeks, streams, and other low-lying and flood-prone locations. 
  Flooding may occur in poor drainage and urban areas. Storm drains 
  and ditches may become clogged with debris.

* ADDITIONAL DETAILS...
  - Thunderstorms with rainfall rates up to 2 inches per hour may
    result in localized flash flooding, especially in urbanized
    locations.
  - http://www.weather.gov/safety/flood

$$

RCM
316 
WGUS61 KPHI 022235
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
635 PM EDT Thu Jun 2 2022

PAZ104-022345-
/O.CAN.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Montgomery-
Including the cities of Lansdale and Norristown
635 PM EDT Thu Jun 2 2022

...FLOOD WATCH IS CANCELLED...

The Flash Flood Watch is cancelled for a portion of southeast 
Pennsylvania...including the following area...Eastern Montgomery.

The flash flooding threat has ended. Therefore, the Flash Flood 
Watch is being cancelled.

$$

DEZ001-NJZ017>019-PAZ070-071-030200-
/O.CON.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Gloucester-Camden-Northwestern Burlington-Delaware-
Philadelphia-
Including the cities of Glassboro, Mount Holly, Cherry Hill, 
Moorestown, Wilmington, Philadelphia, Camden, and Media
635 PM EDT Thu Jun 2 2022

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING...

* WHAT...Flash flooding caused by excessive rainfall continues to be 
  possible.

* WHERE...Portions of northern Delaware...southern New Jersey...and 
  southeast Pennsylvania...including the following areas...in 
  northern Delaware...New Castle. In southern New Jersey...Camden, 
  Gloucester, and Northwestern Burlington. In southeast 
  Pennsylvania...Delaware and Philadelphia.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers, 
  creeks, streams, and other low-lying and flood-prone locations. 
  Flooding may occur in poor drainage and urban areas. Storm drains 
  and ditches may become clogged with debris.

* ADDITIONAL DETAILS...
  - Thunderstorms with rainfall rates up to 2 inches per hour may
    result in localized flash flooding, especially in urbanized
    locations.
  - http://www.weather.gov/safety/flood

$$

RCM
930 
WGUS61 KPHI 022308
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
708 PM EDT Thu Jun 2 2022

PAZ070-071-030015-
/O.CAN.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware-Philadelphia-
Including the cities of Media and Philadelphia
708 PM EDT Thu Jun 2 2022

...FLOOD WATCH IS CANCELLED...

The Flash Flood Watch is cancelled for a portion of southeast 
Pennsylvania...including the following counties...Delaware and 
Philadelphia.

The flash flooding threat has ended. Therefore, the Flash Flood 
Watch is being cancelled.

$$

DEZ001-NJZ017>019-030200-
/O.CON.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Gloucester-Camden-Northwestern Burlington-
Including the cities of Glassboro, Mount Holly, Cherry Hill, 
Moorestown, Wilmington, and Camden
708 PM EDT Thu Jun 2 2022

...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING...

* WHAT...Flash flooding caused by excessive rainfall continues to be 
  possible.

* WHERE...Portions of northern Delaware...and southern New Jersey...
  including the following areas...in northern Delaware...New Castle. 
  In southern New Jersey...Camden, Gloucester, and Northwestern 
  Burlington.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers, 
  creeks, streams, and other low-lying and flood-prone locations. 
  Flooding may occur in poor drainage and urban areas. Storm drains 
  and ditches may become clogged with debris.

* ADDITIONAL DETAILS...
  - Thunderstorms with rainfall rates up to 2 inches per hour may
    result in localized flash flooding, especially in urbanized
    locations.
  - http://www.weather.gov/safety/flood

$$

RCM
563 
WGUS61 KPHI 030032
FFAPHI

Flood Watch
National Weather Service Mount Holly NJ
832 PM EDT Thu Jun 2 2022

DEZ001-NJZ017>019-030145-
/O.CAN.KPHI.FA.A.0004.000000T0000Z-220603T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle-Gloucester-Camden-Northwestern Burlington-
Including the cities of Glassboro, Mount Holly, Cherry Hill, 
Moorestown, Wilmington, and Camden
832 PM EDT Thu Jun 2 2022

...FLOOD WATCH IS CANCELLED...

The Flash Flood Watch is cancelled for portions of northern 
Delaware...and southern New Jersey...including the following areas...
in northern Delaware...New Castle. In southern New Jersey...Camden, 
Gloucester, and Northwestern Burlington.

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

$$

BAH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 8:44 PM EDTDense Fog AdvisoryPHISussex9 hr
Jun 2, 5:31 PM EDTSevere Thunderstorm WarningPHISussex29 min
Jun 2, 5:58 PM EDTSevere Thunderstorm WarningPHIKent, Sussex47 min
Jun 2, 6:10 PM EDTSevere Thunderstorm WarningPHISussex50 min
Jun 2, 6:44 PM EDTSevere Thunderstorm WarningPHISussex46 min
Jun 2, 7:27 PM EDTSevere Thunderstorm Warning Considerable damage threatPHISussex18 min
Jun 1, 8:26 PM EDTAreal Flood AdvisoryPHIMorris, Somerset, Sussex, Warren4 hr
Jun 1, 9:26 PM EDTFlash Flood WarningPHIMorris, Somerset4 hr
Jun 1, 11:51 PM EDTAreal Flood AdvisoryPHIMiddlesex, Somerset91 min
Jun 2, 2:59 AM EDTAreal Flood AdvisoryPHIMonmouth, Ocean45 min
Jun 2, 4:14 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer31 min
Jun 2, 4:48 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean42 min
Jun 2, 5:24 PM EDTSpecial Marine WarningPHI67 min
Jun 2, 5:26 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean34 min
Jun 2, 5:32 PM EDTAreal Flood AdvisoryPHIBurlington, Camden3 hr
Jun 2, 6:26 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester2 hr
Jun 2, 7:07 PM EDTSpecial Marine WarningPHI53 min
Jun 2, 7:37 PM EDTSpecial Marine WarningPHI53 min
Jun 2, 7:58 PM EDTSpecial Marine WarningPHI62 min
Jun 1, 8:06 PM EDTAreal Flood AdvisoryPHIMonroe3 hr
Jun 1, 11:22 PM EDTSpecial Weather StatementPHIPhiladelphia23 min
Jun 2, 12:33 AM EDTSpecial Weather StatementPHICarbon, Lehigh27 min
Jun 2, 1:12 AM EDTSpecial Weather StatementPHIMontgomery33 min
Jun 2, 1:46 AM EDTSpecial Weather StatementPHIBucks29 min
Jun 2, 3:56 PM EDTSpecial Weather StatementPHIPhiladelphia34 min
Jun 2, 5:58 PM EDTAreal Flood AdvisoryPHIDelaware, Montgomery, Philadelphia3 hr
Jun 2, 6:11 PM EDTAreal Flood AdvisoryPHIChester63 min

Nearby

Flood Watches in New Jersey, 2022Flood Watches in Pennsylvania, 2022Flood Watches in Delaware, 2022Every flood watch in 2022

Sources

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