Alert archive / New Jersey / Flash Flood Warnings in 2019

Flash Flood Warning 83, NWS Philadelphia/Mount Holly

September 2, 2019Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 2, 2019, 6:06 PM EDT for Ocean County, New Jersey. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 2, 2019, 6:06 PM EDT (22:06 UTC)
Expired
Sep 2, 2019, 8:11 PM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 22 km from the middle of the area, began a volume at 22:09 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

Brookhaven, NY (KOKX), launched 12:00Z, 10.1 hours before the alert went out and 163 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 2019-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2019-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
826 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

591 
WGUS51 KPHI 022206
FFWPHI
NJC029-030100-
/O.NEW.KPHI.FF.W.0083.190902T2206Z-190903T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
606 PM EDT Mon Sep 2 2019

The National Weather Service in Mount Holly NJ has issued a

* Flash Flood Warning for...
  Central Ocean County in southern New Jersey...

* Until 900 PM EDT.

* At 605 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 2-3 inches of rain have already 
  fallen. Flash flooding is expected to begin shortly in the areas 
  of heaviest rain.

* Some locations that could experience flooding include...
  Barnegat, Brookville and Waretown. 

This includes Garden State Parkway between mile markers 68 and 75.
 
LAT...LON 3984 7415 3982 7416 3977 7419 3976 7423
      3976 7434 3983 7436 3986 7425 3988 7414
      3987 7413

$$

NC
1 follow-up statement
255 
WGUS71 KPHI 030011
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
811 PM EDT Mon Sep 2 2019

NJC029-030021-
/O.CAN.KPHI.FF.W.0083.000000T0000Z-190903T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
811 PM EDT Mon Sep 2 2019

...THE FLASH FLOOD WARNING FOR CENTRAL OCEAN COUNTY IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3984 7415 3982 7416 3977 7419 3976 7423
      3976 7434 3983 7436 3986 7425 3988 7414
      3987 7413

$$

NC

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 8:32 PM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean24 hr
Sep 2, 12:05 PM EDTSpecial Marine WarningPHI40 min
Sep 2, 12:14 PM EDTSpecial Weather StatementPHIMonmouth16 min
Sep 2, 12:35 PM EDTSpecial Weather StatementPHISomerset40 min
Sep 2, 1:15 PM EDTSpecial Weather StatementPHIMorris45 min
Sep 2, 1:31 PM EDTSpecial Weather StatementPHIMercer29 min
Sep 2, 1:56 PM EDTSpecial Weather StatementPHIUnion19 min
Sep 2, 2:01 PM EDTSpecial Weather StatementPHIMonmouth44 min
Sep 2, 4:28 PM EDTSpecial Weather StatementPHIMonmouth17 min
Sep 2, 4:56 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth78 min
Sep 2, 5:01 PM EDTSpecial Weather StatementPHIOcean44 min
Sep 2, 5:29 PM EDTAreal Flood AdvisoryPHIBurlington, Ocean3 hr
Sep 2, 5:42 PM EDTSpecial Weather StatementPHIOcean48 min
Sep 2, 6:01 PM EDTSpecial Weather StatementPHIBurlington44 min
Sep 2, 6:49 PM EDTSpecial Weather StatementPHIOcean41 min
Sep 2, 6:52 PM EDTSpecial Marine WarningPHI113 min

Nearby

Flash Flood Warnings in New Jersey, 2019Every flash flood warning in 2019

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.