Alert archive / New Jersey / Areal Flood Advisories in 2021

Areal Flood Advisory 37, NWS Philadelphia/Mount Holly

June 14, 20216 counties in New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 14, 2021, 11:47 PM EDT for 6 counties in New Jersey. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
Jun 14, 2021, 11:47 PM EDT (03:47 UTC)
Expired
Jun 15, 2021, 1:45 AM EDT
In force
118 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Ocean County, NJ, Salem County, NJ

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.8 hours before the alert went out and 178 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, Wallops Is Stn, VA at 00:00Z on 2021-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 464 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
464 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
989 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

138 
WGUS81 KPHI 150347
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
1147 PM EDT Mon Jun 14 2021

NJC001-005-009-011-029-033-150545-
/O.NEW.KPHI.FA.Y.0037.210615T0347Z-210615T0545Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Burlington NJ-Cape May NJ-Cumberland NJ-Ocean NJ-Salem
NJ-
1147 PM EDT Mon Jun 14 2021

The National Weather Service in Mount Holly has issued a

* Flood Advisory for...
  Atlantic County in southern New Jersey...
  Southeastern Burlington County in southern New Jersey...
  Northern Cape May County in southern New Jersey...
  Cumberland County in southern New Jersey...
  Southeastern Ocean County in southern New Jersey...
  Southern Salem County in southern New Jersey...

* Until 145 AM EDT.

* At 1147 PM EDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Minor flooding is ongoing or expected to begin 
  shortly in the advisory area. Between 0.5 and 1.5 inches of rain 
  have fallen in spots.

* Some locations that may experience flooding include...
  Vineland, Atlantic City, Millville, Bridgeton, Ocean City, 
  Cumberland, Pleasantville, Hammonton, Somers Point, Ventnor City, 
  Brigantine, and Northfield.

This includes the following highways...
	Garden State Parkway between mile markers 21 and 27...and
	between mile markers 29 and 30...and
	between mile markers 32 and 65.
	Atlantic City Expressway between mile markers 0 and 28.

This includes the following DSS Events...
	Atlantic County Mega Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3949 7553 3958 7507 3951 7499 3962 7487
      3977 7405 3950 7421 3927 7445 3909 7514

$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:08 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset52 min
Jun 14, 8:34 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester41 min
Jun 14, 8:55 PM EDTSevere Thunderstorm WarningPHIGloucester50 min
Jun 14, 9:11 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more49 min
Jun 14, 9:12 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more74 min
Jun 14, 9:17 PM EDTFlash Flood WarningPHIBurlington, Camden3 hr
Jun 14, 9:29 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester46 min
Jun 14, 9:54 PM EDTAreal Flood AdvisoryPHIMonmouth97 min
Jun 14, 9:58 PM EDTSevere Thunderstorm WarningPHIMonmouth32 min
Jun 14, 10:01 PM EDTSpecial Marine WarningPHI89 min
Jun 14, 10:07 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean53 min
Jun 14, 10:51 PM EDTSpecial Marine WarningPHI114 min
Jun 14, 11:07 PM EDTSpecial Marine WarningPHI113 min
Jun 14, 11:21 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean39 min
Jun 14, 11:42 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem63 min
Jun 15, 12:04 AM EDTSpecial Marine WarningPHI116 min
Jun 15, 12:12 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Gloucester51 min
Jun 15, 1:00 AM EDTSpecial Marine WarningPHI88 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.