Alert archive / New Jersey / Areal Flood Advisories in 2012

Areal Flood Advisory 13, NWS Philadelphia/Mount Holly

May 24, 20124 counties in New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at May 24, 2012, 1:06 PM EDT for 4 counties in New Jersey. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 24, 2012, 1:06 PM EDT (17:06 UTC)
Expired: May 24, 2012, 2:40 PM EDT
In force: 94 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 17:07 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.1 hours before the alert went out and 101 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 302 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 499 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

151 
WGUS81 KPHI 241706
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
106 PM EDT THU MAY 24 2012

NJC001-005-007-015-242000-
/O.NEW.KPHI.FA.Y.0013.120524T1706Z-120524T2000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-GLOUCESTER NJ-BURLINGTON NJ-ATLANTIC NJ-
106 PM EDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR...
  CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  WEST CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 400 PM EDT

* AT 104 PM EDT A THUNDERSTORM WITH HEAVY RAIN NEAR WILLIAMSTOWN AND 
  HAS DROPPED AROUND AN INCH OF RAIN WITHIN AN HOUR. THIS STORM IS
  DRIFTING NORTH AND WILL AFFECT CAMDEN COUNTY THE HARDEST WHERE
  AROUND TWO INCHES MIGHT FALL.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN AREAS...
HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

&&

LAT...LON 3953 7501 3954 7503 3983 7517 3992 7487
      3973 7479 3959 7475

$$
 
TFG

1 follow-up statement

016 
WGUS81 KPHI 241840
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
240 PM EDT THU MAY 24 2012

NJC001-005-007-015-241849-
/O.CAN.KPHI.FA.Y.0013.000000T0000Z-120524T2000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMDEN NJ-GLOUCESTER NJ-ATLANTIC NJ-BURLINGTON NJ-
240 PM EDT THU MAY 24 2012

...THE URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN CANCELLED FOR
WEST CENTRAL BURLINGTON...NORTHWESTERN ATLANTIC...EASTERN GLOUCESTER
AND CAMDEN COUNTIES...

THE THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED TO THE NORTHWEST. AS A 
RESULT...THE URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN 
CANCELLED FOR WEST CENTRAL BURLINGTON COUNTY...NORTHWESTERN ATLANTIC 
COUNTY...EASTERN GLOUCESTER COUNTY AND CAMDEN COUNTY.

LAT...LON 3953 7501 3954 7503 3983 7517 3992 7487
      3973 7479 3959 7475

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 12:52 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	53 min
May 24, 1:18 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester	38 min
May 24, 1:19 PM EDT	Special Weather Statement	PHI	Burlington	56 min
May 24, 1:27 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	48 min
May 24, 1:36 PM EDT	Areal Flood Advisory	PHI	Burlington	84 min
May 24, 1:47 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth	43 min
May 24, 1:50 PM EDT	Flash Flood Warning	PHI	Burlington	89 min
May 24, 2:01 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	83 min
May 24, 2:08 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	52 min
May 24, 2:21 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	97 min
May 24, 2:32 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer	29 min
May 24, 2:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	54 min
May 24, 3:13 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	91 min
May 24, 3:38 PM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	67 min
May 24, 4:23 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	97 min

Nearby

Areal Flood Advisories in New Jersey, 2012 Every areal flood advisory in 2012

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.