Alert archive / New Jersey / Areal Flood Advisories in 2021

Areal Flood Advisory 32, NWS Philadelphia/Mount Holly

June 14, 2021Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 14, 2021, 7:14 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 14, 2021, 7:14 PM EDT (23:14 UTC)
Expired
Jun 14, 2021, 9:15 PM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.2 hours before the alert went out and 149 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 2021-06-14Temperature 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 2021-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

961 
WGUS81 KPHI 142314
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
714 PM EDT Mon Jun 14 2021

NJC023-025-150115-
/O.NEW.KPHI.FA.Y.0032.210614T2314Z-210615T0115Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Middlesex NJ-Monmouth NJ-
714 PM EDT Mon Jun 14 2021

The National Weather Service in Mount Holly has issued a

* Flood Advisory for...
  Central Monmouth County in central New Jersey...
  Southern Middlesex County in northern New Jersey...

* Until 915 PM EDT.

* At 714 PM EDT, Doppler radar and automated rain gauges indicated 
  heavy rain due to thunderstorms. Minor flooding is ongoing or 
  expected to begin shortly in the advisory area. Between 0.5 and 1 
  inch of rain has fallen. An additional 0.5 to 1 inch of rain is 
  possible.

* Some locations that will experience flooding include...
  East Brunswick, Marlboro, Manalapan, Jamesburg, Cranbury, 
  Yorketown, Robertsville, Morganville, Whittingham, West Freehold, 
  Clearbrook Park, and East Freehold.

This includes the following highways...
	New Jersey Turnpike near exit 9.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4031 7458 4039 7446 4036 7421 4016 7425
      4026 7448 4027 7448 4029 7453 4029 7454

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 5:53 PM EDTSpecial Weather StatementPHISussex37 min
Jun 14, 6:24 PM EDTSpecial Weather StatementPHISussex36 min
Jun 14, 6:33 PM EDTSpecial Weather StatementPHIMiddlesex, Monmouth27 min
Jun 14, 6:48 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset, Sussex42 min
Jun 14, 7:02 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth43 min
Jun 14, 7:55 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset32 min

Nearby

Areal Flood Advisories in New Jersey, 2021Every areal flood advisory in 2021

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.